wiringPi Version 2 - First commit (of v2)
This commit is contained in:
parent
98bcb20d93
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12
INSTALL
12
INSTALL
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@ -30,18 +30,6 @@ To un-install wiringPi:
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./build uninstall
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I2C:
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If your system has the correct i2c-dev libraries and headers installed,
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then the I2C helpers will be compiled into wiringPi. If you want to
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use the I2C helpers and don't have them installed, then under Raspbian,
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issue the command:
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sudo apt-get install libi2c-dev
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Consult the documentation for your system if you are not running Raspbian.
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Gordon Henderson
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projects@drogon.net
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@ -16,7 +16,7 @@ accepted to Github....
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Please see
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https://projects.drogon.net/raspberry-pi/wiringpi/
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http://wiringpi.com/
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for the official documentation, etc. and the best way to submit bug reports, etc.
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is by sending an email to projects@drogon.net
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53
build
53
build
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@ -14,28 +14,28 @@ check-make-ok()
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}
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if [ x$1 = "xclean" ]; then
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echo Cleaning
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echo
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cd wiringPi
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make clean
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echo -n "wiringPi: " ; make clean
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cd ../devLib
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echo -n "DevLib: " ; make clean
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cd ../gpio
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make clean
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echo -n "gpio: " ; make clean
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cd ../examples
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make clean
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echo -n "Examples: " ; make clean
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cd Gertboard
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echo -n "Gertboard: " ; make clean
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cd ../PiFace
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echo -n "PiFace: " ; make clean
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exit
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fi
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if [ x$1 = "xuninstall" ]; then
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echo Uninstalling
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echo
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echo "WiringPi library"
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cd wiringPi
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sudo make uninstall
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echo
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echo "GPIO Utility"
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echo -n "wiringPi: " ; sudo make uninstall
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cd ../devLib
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echo -n "DevLib: " ; sudo make uninstall
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cd ../gpio
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sudo make uninstall
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cd ..
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echo -n "gpio: " ; sudo make uninstall
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exit
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fi
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@ -44,25 +44,20 @@ fi
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echo "====================="
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echo
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# Check for I2C being installed...
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# ... and if-so, then automatically make the I2C helpers
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if [ -f /usr/include/linux/i2c-dev.h ]; then
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grep -q i2c_smbus_read_byte /usr/include/linux/i2c-dev.h
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if [ $? = 0 ]; then
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target=i2c
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echo "Building wiringPi with the I2C helper libraries."
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else
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target=all
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echo "The wiringPi I2C helper libraries will not be built."
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fi
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fi
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echo
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echo "WiringPi library"
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echo "WiringPi Library"
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cd wiringPi
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sudo make uninstall
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make $target
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make
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check-make-ok
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sudo make install
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check-make-ok
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echo
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echo "WiringPi Devices Library"
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cd ../devLib
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sudo make uninstall
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make
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check-make-ok
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sudo make install
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check-make-ok
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@ -0,0 +1,130 @@
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# Makefile:
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# wiringPi device - Wiring Compatable library for the Raspberry Pi
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#
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# Copyright (c) 2012-2013 Gordon Henderson
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#################################################################################
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# This file is part of wiringPi:
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# https://projects.drogon.net/raspberry-pi/wiringpi/
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#
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# wiringPi is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# wiringPi is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
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#################################################################################
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DYN_VERS_MAJ=2
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DYN_VERS_MIN=0
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VERSION=$(DYN_VERS_MAJ).$(DYN_VERS_MIN)
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DESTDIR=/usr
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PREFIX=/local
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STATIC=libwiringPiDev.a
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DYNAMIC=libwiringPiDev.so.$(VERSION)
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#DEBUG = -g -O0
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DEBUG = -O2
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CC = gcc
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INCLUDE = -I.
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CFLAGS = $(DEBUG) -Wformat=2 -Wall $(INCLUDE) -Winline -pipe -fPIC
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LIBS =
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###############################################################################
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SRC = ds1302.c maxdetect.c piNes.c \
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gertboard.c piFace.c \
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lcd128x64.c lcd.c
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OBJ = $(SRC:.c=.o)
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all: $(DYNAMIC)
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static: $(STATIC)
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$(STATIC): $(OBJ)
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@echo "[Link (Static)]"
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@ar rcs $(STATIC) $(OBJ)
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@ranlib $(STATIC)
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# @size $(STATIC)
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$(DYNAMIC): $(OBJ)
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@echo "[Link (Dynamic)]"
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@$(CC) -shared -Wl,-soname,libwiringPiDev.so -o libwiringPiDev.so.$(VERSION) -lpthread $(OBJ)
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.c.o:
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@echo [Compile] $<
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@$(CC) -c $(CFLAGS) $< -o $@
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.PHONEY: clean
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clean:
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@echo "[Clean]"
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@rm -f $(OBJ) $(OBJ_I2C) *~ core tags Makefile.bak libwiringPiDev.*
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.PHONEY: tags
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tags: $(SRC)
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@echo [ctags]
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@ctags $(SRC)
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.PHONEY: install-headers
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install-headers:
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@echo "[Install Headers]"
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@install -m 0755 -d $(DESTDIR)$(PREFIX)/include
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@install -m 0644 ds1302.h $(DESTDIR)$(PREFIX)/include
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@install -m 0644 maxdetect.h $(DESTDIR)$(PREFIX)/include
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@install -m 0644 piNes.h $(DESTDIR)$(PREFIX)/include
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@install -m 0644 gertboard.h $(DESTDIR)$(PREFIX)/include
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@install -m 0644 piFace.h $(DESTDIR)$(PREFIX)/include
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@install -m 0644 lcd128x64.h $(DESTDIR)$(PREFIX)/include
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@install -m 0644 lcd.h $(DESTDIR)$(PREFIX)/include
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.PHONEY: install
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install: $(DYNAMIC) install-headers
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@echo "[Install Dynamic Lib]"
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@install -m 0755 -d $(DESTDIR)$(PREFIX)/lib
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@install -m 0755 libwiringPiDev.so.$(VERSION) $(DESTDIR)$(PREFIX)/lib/libwiringPiDev.so.$(VERSION)
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@ln -sf $(DESTDIR)$(PREFIX)/lib/libwiringPiDev.so.$(VERSION) $(DESTDIR)/lib/libwiringPiDev.so
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@ldconfig
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.PHONEY: install-static
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install-static: $(STATIC) install-headers
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@echo "[Install Static Lib]"
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@install -m 0755 -d $(DESTDIR)$(PREFIX)/lib
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@install -m 0755 libwiringPiDev.a $(DESTDIR)$(PREFIX)/lib
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.PHONEY: uninstall
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uninstall:
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@echo "[UnInstall]"
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@rm -f $(DESTDIR)$(PREFIX)/include/ds1302.h
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@rm -f $(DESTDIR)$(PREFIX)/include/maxdetect.h
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@rm -f $(DESTDIR)$(PREFIX)/include/piNes.h
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@rm -f $(DESTDIR)$(PREFIX)/include/gertboard.h
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@rm -f $(DESTDIR)$(PREFIX)/include/piFace.h
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@rm -f $(DESTDIR)$(PREFIX)/include/lcd128x64.h
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@rm -f $(DESTDIR)$(PREFIX)/include/lcd.h
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@rm -f $(DESTDIR)$(PREFIX)/lib/libwiringPiDev.*
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@ldconfig
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.PHONEY: depend
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depend:
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makedepend -Y $(SRC)
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# DO NOT DELETE
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ds1302.o: ds1302.h
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maxdetect.o: maxdetect.h
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piNes.o: piNes.h
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gertboard.o: gertboard.h
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piFace.o: piFace.h
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lcd128x64.o: font.h lcd128x64.h
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lcd.o: lcd.h
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@ -0,0 +1,240 @@
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/*
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* ds1302.c:
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* Real Time clock
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*
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* Copyright (c) 2013 Gordon Henderson.
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***********************************************************************
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* This file is part of wiringPi:
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* https://projects.drogon.net/raspberry-pi/wiringpi/
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*
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* wiringPi is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* wiringPi is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
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***********************************************************************
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdarg.h>
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#include <wiringPi.h>
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#include "ds1302.h"
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// Register defines
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#define RTC_SECS 0
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#define RTC_MINS 1
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#define RTC_HOURS 2
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#define RTC_DATE 3
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#define RTC_MONTH 4
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#define RTC_DAY 5
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#define RTC_YEAR 6
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#define RTC_WP 7
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#define RTC_TC 8
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#define RTC_BM 31
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// Locals
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static int dPin, cPin, sPin ;
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/*
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* dsShiftIn:
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* Shift a number in from the chip, LSB first. Note that the data is
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* sampled on the trailing edge of the last clock, so it's valid immediately.
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*********************************************************************************
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*/
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static unsigned int dsShiftIn (void)
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{
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uint8_t value = 0 ;
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int i ;
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pinMode (dPin, INPUT) ; delayMicroseconds (1) ;
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for (i = 0 ; i < 8 ; ++i)
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{
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value |= (digitalRead (dPin) << i) ;
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digitalWrite (cPin, HIGH) ; delayMicroseconds (1) ;
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digitalWrite (cPin, LOW) ; delayMicroseconds (1) ;
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}
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return value;
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}
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/*
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* dsShiftOut:
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* A normal LSB-first shift-out, just slowed down a bit - the Pi is
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* a bit faster than the chip can handle.
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*********************************************************************************
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*/
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static void dsShiftOut (unsigned int data)
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{
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int i ;
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pinMode (dPin, OUTPUT) ;
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for (i = 0 ; i < 8 ; ++i)
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{
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digitalWrite (dPin, data & (1 << i)) ; delayMicroseconds (1) ;
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digitalWrite (cPin, HIGH) ; delayMicroseconds (1) ;
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digitalWrite (cPin, LOW) ; delayMicroseconds (1) ;
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}
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}
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/*
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* ds1302regRead: ds1302regWrite:
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* Read/Write a value to an RTC Register or RAM location on the chip
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*********************************************************************************
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*/
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static unsigned int ds1302regRead (const int reg)
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{
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unsigned int data ;
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digitalWrite (sPin, HIGH) ; delayMicroseconds (1) ;
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dsShiftOut (reg) ;
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data = dsShiftIn () ;
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digitalWrite (sPin, LOW) ; delayMicroseconds (1) ;
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return data ;
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}
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static void ds1302regWrite (const int reg, const unsigned int data)
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{
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digitalWrite (sPin, HIGH) ; delayMicroseconds (1) ;
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dsShiftOut (reg) ;
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dsShiftOut (data) ;
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digitalWrite (sPin, LOW) ; delayMicroseconds (1) ;
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}
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/*
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* ds1302rtcWrite: ds1302rtcRead:
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* Writes/Reads the data to/from the RTC register
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*********************************************************************************
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*/
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unsigned int ds1302rtcRead (const int reg)
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{
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return ds1302regRead (0x81 | ((reg & 0x1F) << 1)) ;
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}
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void ds1302rtcWrite (int reg, unsigned int data)
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{
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ds1302regWrite (0x80 | ((reg & 0x1F) << 1), data) ;
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}
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/*
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* ds1302ramWrite: ds1302ramRead:
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* Writes/Reads the data to/from the RTC register
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*********************************************************************************
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*/
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unsigned int ds1302ramRead (const int addr)
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{
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return ds1302regRead (0xC1 | ((addr & 0x1F) << 1)) ;
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}
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void ds1302ramWrite (const int addr, const unsigned int data)
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{
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ds1302regWrite ( 0xC0 | ((addr & 0x1F) << 1), data) ;
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}
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/*
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* ds1302clockRead:
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* Read all 8 bytes of the clock in a single operation
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*********************************************************************************
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*/
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void ds1302clockRead (int clockData [8])
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{
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int i ;
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unsigned int regVal = 0x81 | ((RTC_BM & 0x1F) << 1) ;
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digitalWrite (sPin, HIGH) ; delayMicroseconds (1) ;
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dsShiftOut (regVal) ;
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for (i = 0 ; i < 8 ; ++i)
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clockData [i] = dsShiftIn () ;
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digitalWrite (sPin, LOW) ; delayMicroseconds (1) ;
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}
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/*
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* ds1302clockWrite:
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* Write all 8 bytes of the clock in a single operation
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*********************************************************************************
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*/
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void ds1302clockWrite (const int clockData [8])
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{
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int i ;
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unsigned int regVal = 0x80 | ((RTC_BM & 0x1F) << 1) ;
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digitalWrite (sPin, HIGH) ; delayMicroseconds (1) ;
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dsShiftOut (regVal) ;
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for (i = 0 ; i < 8 ; ++i)
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dsShiftOut (clockData [i]) ;
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digitalWrite (sPin, LOW) ; delayMicroseconds (1) ;
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||||
}
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||||
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||||
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||||
/*
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* ds1302trickleCharge:
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* Set the bits on the trickle charger.
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||||
* Probably best left alone...
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*********************************************************************************
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||||
*/
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||||
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void ds1302trickleCharge (const int diodes, const int resistors)
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{
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if (diodes + resistors == 0)
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ds1302rtcWrite (RTC_TC, 0x5C) ; // Disabled
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else
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ds1302rtcWrite (RTC_TC, 0xA0 | ((diodes & 3) << 2) | (resistors & 3)) ;
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}
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||||
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||||
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||||
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||||
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/*
|
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* ds1302setup:
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* Initialise the chip & remember the pins we're using
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||||
*********************************************************************************
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||||
*/
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||||
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||||
void ds1302setup (const int clockPin, const int dataPin, const int csPin)
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{
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dPin = dataPin ;
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cPin = clockPin ;
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sPin = csPin ;
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||||
digitalWrite (dPin, LOW) ;
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digitalWrite (cPin, LOW) ;
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digitalWrite (sPin, LOW) ;
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||||
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pinMode (dPin, OUTPUT) ;
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pinMode (cPin, OUTPUT) ;
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pinMode (sPin, OUTPUT) ;
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||||
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||||
ds1302rtcWrite (RTC_WP, 0) ; // Remove write-protect
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}
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@ -1,10 +1,8 @@
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/*
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* lcd.h:
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||||
* Text-based LCD driver.
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||||
* This is designed to drive the parallel interface LCD drivers
|
||||
* based in the Hitachi HD44780U controller and compatables.
|
||||
* ds1302.h:
|
||||
* Real Time clock
|
||||
*
|
||||
* Copyright (c) 2012 Gordon Henderson.
|
||||
* Copyright (c) 2013 Gordon Henderson.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
|
@ -24,22 +22,22 @@
|
|||
***********************************************************************
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||||
*/
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||||
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||||
#define MAX_LCDS 8
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||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern void lcdHome (int fd) ;
|
||||
extern void lcdClear (int fd) ;
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||||
extern void lcdSendCommand (int fd, uint8_t command) ;
|
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extern void lcdPosition (int fd, int x, int y) ;
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extern void lcdPutchar (int fd, uint8_t data) ;
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||||
extern void lcdPuts (int fd, char *string) ;
|
||||
extern void lcdPrintf (int fd, char *message, ...) ;
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extern unsigned int ds1302rtcRead (const int reg) ;
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extern void ds1302rtcWrite (const int reg, const unsigned int data) ;
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||||
|
||||
extern int lcdInit (int rows, int cols, int bits, int rs, int strb,
|
||||
int d0, int d1, int d2, int d3, int d4, int d5, int d6, int d7) ;
|
||||
extern unsigned int ds1302ramRead (const int addr) ;
|
||||
extern void ds1302ramWrite (const int addr, const unsigned int data) ;
|
||||
|
||||
extern void ds1302clockRead (int clockData [8]) ;
|
||||
extern void ds1302clockWrite (const int clockData [8]) ;
|
||||
|
||||
extern void ds1302trickleCharge (const int diodes, const int resistors) ;
|
||||
|
||||
extern void ds1302setup (const int clockPin, const int dataPin, const int csPin) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
File diff suppressed because it is too large
Load Diff
|
@ -38,16 +38,17 @@
|
|||
#include <sys/ioctl.h>
|
||||
#include <linux/spi/spidev.h>
|
||||
|
||||
#include "wiringPiSPI.h"
|
||||
#include <wiringPi.h>
|
||||
#include <wiringPiSPI.h>
|
||||
|
||||
#include "gertboard.h"
|
||||
|
||||
// The A-D convertor won't run at more than 1MHz @ 3.3v
|
||||
|
||||
#define SPI_ADC_SPEED 1000000
|
||||
#define SPI_DAC_SPEED 1000000
|
||||
#define SPI_A2D 0
|
||||
#define SPI_D2A 1
|
||||
#define SPI_ADC_SPEED 1000000
|
||||
#define SPI_DAC_SPEED 1000000
|
||||
#define SPI_A2D 0
|
||||
#define SPI_D2A 1
|
||||
|
||||
|
||||
/*
|
||||
|
@ -57,7 +58,7 @@
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void gertboardAnalogWrite (int chan, int value)
|
||||
void gertboardAnalogWrite (const int chan, const int value)
|
||||
{
|
||||
uint8_t spiData [2] ;
|
||||
uint8_t chanBits, dataBits ;
|
||||
|
@ -84,7 +85,7 @@ void gertboardAnalogWrite (int chan, int value)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int gertboardAnalogRead (int chan)
|
||||
int gertboardAnalogRead (const int chan)
|
||||
{
|
||||
uint8_t spiData [2] ;
|
||||
|
||||
|
@ -120,3 +121,44 @@ int gertboardSPISetup (void)
|
|||
|
||||
return 0 ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* New wiringPi node extension methods.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int myAnalogRead (struct wiringPiNodeStruct *node, const int chan)
|
||||
{
|
||||
return gertboardAnalogRead (chan - node->pinBase) ;
|
||||
}
|
||||
|
||||
static void myAnalogWrite (struct wiringPiNodeStruct *node, const int chan, const int value)
|
||||
{
|
||||
gertboardAnalogWrite (chan - node->pinBase, value) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* gertboardAnalogSetup:
|
||||
* Create a new wiringPi device node for the analog devices on the
|
||||
* Gertboard. We create one node with 2 pins - each pin being read
|
||||
* and write - although the operations actually go to different
|
||||
* hardware devices.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int gertboardAnalogSetup (const int pinBase)
|
||||
{
|
||||
struct wiringPiNodeStruct *node ;
|
||||
int x ;
|
||||
|
||||
if (( x = gertboardSPISetup ()) != 0)
|
||||
return x;
|
||||
|
||||
node = wiringPiNewNode (pinBase, 2) ;
|
||||
node->analogRead = myAnalogRead ;
|
||||
node->analogWrite = myAnalogWrite ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -30,10 +30,16 @@
|
|||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern void gertboardAnalogWrite (int chan, int value) ;
|
||||
extern int gertboardAnalogRead (int chan) ;
|
||||
// Old routines
|
||||
|
||||
extern void gertboardAnalogWrite (const int chan, const int value) ;
|
||||
extern int gertboardAnalogRead (const int chan) ;
|
||||
extern int gertboardSPISetup (void) ;
|
||||
|
||||
// New
|
||||
|
||||
extern int gertboardAnalogSetup (const int pinBase) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -26,29 +26,40 @@
|
|||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
#include <stdarg.h>
|
||||
|
||||
#include "wiringPi.h"
|
||||
#include <wiringPi.h>
|
||||
|
||||
#include "lcd.h"
|
||||
|
||||
// Commands
|
||||
#ifndef TRUE
|
||||
# define TRUE (1==1)
|
||||
# define FALSE (1==2)
|
||||
#endif
|
||||
|
||||
// HD44780U Commands
|
||||
|
||||
#define LCD_CLEAR 0x01
|
||||
#define LCD_HOME 0x02
|
||||
#define LCD_ENTRY 0x04
|
||||
#define LCD_ON_OFF 0x08
|
||||
#define LCD_CTRL 0x08
|
||||
#define LCD_CDSHIFT 0x10
|
||||
#define LCD_FUNC 0x20
|
||||
#define LCD_CGRAM 0x40
|
||||
#define LCD_DGRAM 0x80
|
||||
|
||||
#define LCD_ENTRY_SH 0x01
|
||||
#define LCD_ENTRY_ID 0x02
|
||||
// Bits in the entry register
|
||||
|
||||
#define LCD_ON_OFF_B 0x01
|
||||
#define LCD_ON_OFF_C 0x02
|
||||
#define LCD_ON_OFF_D 0x04
|
||||
#define LCD_ENTRY_SH 0x01
|
||||
#define LCD_ENTRY_ID 0x02
|
||||
|
||||
// Bits in the control register
|
||||
|
||||
#define LCD_BLINK_CTRL 0x01
|
||||
#define LCD_CURSOR_CTRL 0x02
|
||||
#define LCD_DISPLAY_CTRL 0x04
|
||||
|
||||
// Bits in the function register
|
||||
|
||||
#define LCD_FUNC_F 0x04
|
||||
#define LCD_FUNC_N 0x08
|
||||
|
@ -58,13 +69,20 @@
|
|||
|
||||
struct lcdDataStruct
|
||||
{
|
||||
uint8_t bits, rows, cols ;
|
||||
uint8_t rsPin, strbPin ;
|
||||
uint8_t dataPins [8] ;
|
||||
int bits, rows, cols ;
|
||||
int rsPin, strbPin ;
|
||||
int dataPins [8] ;
|
||||
int cx, cy ;
|
||||
} ;
|
||||
|
||||
struct lcdDataStruct *lcds [MAX_LCDS] ;
|
||||
|
||||
static int lcdControl ;
|
||||
|
||||
// Row offsets
|
||||
|
||||
static const int rowOff [4] = { 0x00, 0x40, 0x14, 0x54 } ;
|
||||
|
||||
|
||||
/*
|
||||
* strobe:
|
||||
|
@ -73,7 +91,7 @@ struct lcdDataStruct *lcds [MAX_LCDS] ;
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void strobe (struct lcdDataStruct *lcd)
|
||||
static void strobe (const struct lcdDataStruct *lcd)
|
||||
{
|
||||
|
||||
// Note timing changes for new version of delayMicroseconds ()
|
||||
|
@ -89,13 +107,14 @@ static void strobe (struct lcdDataStruct *lcd)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void sendDataCmd (struct lcdDataStruct *lcd, uint8_t data)
|
||||
static void sendDataCmd (const struct lcdDataStruct *lcd, unsigned char data)
|
||||
{
|
||||
uint8_t i, d4 ;
|
||||
register unsigned char myData = data ;
|
||||
unsigned char i, d4 ;
|
||||
|
||||
if (lcd->bits == 4)
|
||||
{
|
||||
d4 = (data >> 4) & 0x0F;
|
||||
d4 = (myData >> 4) & 0x0F;
|
||||
for (i = 0 ; i < 4 ; ++i)
|
||||
{
|
||||
digitalWrite (lcd->dataPins [i], (d4 & 1)) ;
|
||||
|
@ -103,7 +122,7 @@ static void sendDataCmd (struct lcdDataStruct *lcd, uint8_t data)
|
|||
}
|
||||
strobe (lcd) ;
|
||||
|
||||
d4 = data & 0x0F ;
|
||||
d4 = myData & 0x0F ;
|
||||
for (i = 0 ; i < 4 ; ++i)
|
||||
{
|
||||
digitalWrite (lcd->dataPins [i], (d4 & 1)) ;
|
||||
|
@ -114,8 +133,8 @@ static void sendDataCmd (struct lcdDataStruct *lcd, uint8_t data)
|
|||
{
|
||||
for (i = 0 ; i < 8 ; ++i)
|
||||
{
|
||||
digitalWrite (lcd->dataPins [i], (data & 1)) ;
|
||||
data >>= 1 ;
|
||||
digitalWrite (lcd->dataPins [i], (myData & 1)) ;
|
||||
myData >>= 1 ;
|
||||
}
|
||||
}
|
||||
strobe (lcd) ;
|
||||
|
@ -128,22 +147,24 @@ static void sendDataCmd (struct lcdDataStruct *lcd, uint8_t data)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void putCommand (struct lcdDataStruct *lcd, uint8_t command)
|
||||
static void putCommand (const struct lcdDataStruct *lcd, unsigned char command)
|
||||
{
|
||||
digitalWrite (lcd->rsPin, 0) ;
|
||||
sendDataCmd (lcd, command) ;
|
||||
delay (2) ;
|
||||
}
|
||||
|
||||
static void put4Command (struct lcdDataStruct *lcd, uint8_t command)
|
||||
static void put4Command (const struct lcdDataStruct *lcd, unsigned char command)
|
||||
{
|
||||
uint8_t i ;
|
||||
register unsigned char myCommand = command ;
|
||||
register unsigned char i ;
|
||||
|
||||
digitalWrite (lcd->rsPin, 0) ;
|
||||
|
||||
for (i = 0 ; i < 4 ; ++i)
|
||||
{
|
||||
digitalWrite (lcd->dataPins [i], (command & 1)) ;
|
||||
command >>= 1 ;
|
||||
digitalWrite (lcd->dataPins [i], (myCommand & 1)) ;
|
||||
myCommand >>= 1 ;
|
||||
}
|
||||
strobe (lcd) ;
|
||||
}
|
||||
|
@ -151,7 +172,7 @@ static void put4Command (struct lcdDataStruct *lcd, uint8_t command)
|
|||
|
||||
/*
|
||||
*********************************************************************************
|
||||
* User Code below here
|
||||
* User Callable code below here
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
|
@ -161,16 +182,66 @@ static void put4Command (struct lcdDataStruct *lcd, uint8_t command)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcdHome (int fd)
|
||||
void lcdHome (const int fd)
|
||||
{
|
||||
struct lcdDataStruct *lcd = lcds [fd] ;
|
||||
|
||||
putCommand (lcd, LCD_HOME) ;
|
||||
lcd->cx = lcd->cy = 0 ;
|
||||
delay (5) ;
|
||||
}
|
||||
|
||||
void lcdClear (int fd)
|
||||
void lcdClear (const int fd)
|
||||
{
|
||||
struct lcdDataStruct *lcd = lcds [fd] ;
|
||||
|
||||
putCommand (lcd, LCD_CLEAR) ;
|
||||
putCommand (lcd, LCD_HOME) ;
|
||||
lcd->cx = lcd->cy = 0 ;
|
||||
delay (5) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcdDisplay: lcdCursor: lcdCursorBlink:
|
||||
* Turn the display, cursor, cursor blinking on/off
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcdDisplay (const int fd, int state)
|
||||
{
|
||||
struct lcdDataStruct *lcd = lcds [fd] ;
|
||||
|
||||
if (state)
|
||||
lcdControl |= LCD_DISPLAY_CTRL ;
|
||||
else
|
||||
lcdControl &= ~LCD_DISPLAY_CTRL ;
|
||||
|
||||
putCommand (lcd, LCD_CTRL | lcdControl) ;
|
||||
}
|
||||
|
||||
void lcdCursor (const int fd, int state)
|
||||
{
|
||||
struct lcdDataStruct *lcd = lcds [fd] ;
|
||||
|
||||
if (state)
|
||||
lcdControl |= LCD_CURSOR_CTRL ;
|
||||
else
|
||||
lcdControl &= ~LCD_CURSOR_CTRL ;
|
||||
|
||||
putCommand (lcd, LCD_CTRL | lcdControl) ;
|
||||
}
|
||||
|
||||
void lcdCursorBlink (const int fd, int state)
|
||||
{
|
||||
struct lcdDataStruct *lcd = lcds [fd] ;
|
||||
|
||||
if (state)
|
||||
lcdControl |= LCD_BLINK_CTRL ;
|
||||
else
|
||||
lcdControl &= ~LCD_BLINK_CTRL ;
|
||||
|
||||
putCommand (lcd, LCD_CTRL | lcdControl) ;
|
||||
}
|
||||
|
||||
|
||||
|
@ -180,40 +251,77 @@ void lcdClear (int fd)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcdSendCommand (int fd, uint8_t command)
|
||||
void lcdSendCommand (const int fd, unsigned char command)
|
||||
{
|
||||
struct lcdDataStruct *lcd = lcds [fd] ;
|
||||
putCommand (lcd, command) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcdPosition:
|
||||
* Update the position of the cursor on the display
|
||||
* Update the position of the cursor on the display.
|
||||
* Ignore invalid locations.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
|
||||
void lcdPosition (int fd, int x, int y)
|
||||
void lcdPosition (const int fd, int x, int y)
|
||||
{
|
||||
static uint8_t rowOff [4] = { 0x00, 0x40, 0x14, 0x54 } ;
|
||||
struct lcdDataStruct *lcd = lcds [fd] ;
|
||||
|
||||
if ((x > lcd->cols) || (x < 0))
|
||||
return ;
|
||||
if ((y > lcd->rows) || (y < 0))
|
||||
return ;
|
||||
|
||||
putCommand (lcd, x + (LCD_DGRAM | rowOff [y])) ;
|
||||
|
||||
lcd->cx = x ;
|
||||
lcd->cy = y ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcdCharDef:
|
||||
* Defines a new character in the CGRAM
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcdCharDef (const int fd, int index, unsigned char data [8])
|
||||
{
|
||||
struct lcdDataStruct *lcd = lcds [fd] ;
|
||||
int i ;
|
||||
|
||||
putCommand (lcd, LCD_CGRAM | ((index & 7) << 3)) ;
|
||||
|
||||
digitalWrite (lcd->rsPin, 1) ;
|
||||
for (i = 0 ; i < 8 ; ++i)
|
||||
sendDataCmd (lcd, data [i]) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcdPutchar:
|
||||
* Send a data byte to be displayed on the display
|
||||
* Send a data byte to be displayed on the display. We implement a very
|
||||
* simple terminal here - with line wrapping, but no scrolling. Yet.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcdPutchar (int fd, uint8_t data)
|
||||
void lcdPutchar (const int fd, unsigned char data)
|
||||
{
|
||||
struct lcdDataStruct *lcd = lcds [fd] ;
|
||||
|
||||
digitalWrite (lcd->rsPin, 1) ;
|
||||
sendDataCmd (lcd, data) ;
|
||||
sendDataCmd (lcd, data) ;
|
||||
|
||||
if (++lcd->cx == lcd->cols)
|
||||
{
|
||||
lcd->cx = 0 ;
|
||||
if (++lcd->cy == lcd->rows)
|
||||
lcd->cy = 0 ;
|
||||
|
||||
putCommand (lcd, lcd->cx + (LCD_DGRAM | rowOff [lcd->cy])) ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
@ -223,7 +331,7 @@ void lcdPutchar (int fd, uint8_t data)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcdPuts (int fd, char *string)
|
||||
void lcdPuts (const int fd, const char *string)
|
||||
{
|
||||
while (*string)
|
||||
lcdPutchar (fd, *string++) ;
|
||||
|
@ -236,7 +344,7 @@ void lcdPuts (int fd, char *string)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcdPrintf (int fd, char *message, ...)
|
||||
void lcdPrintf (const int fd, const char *message, ...)
|
||||
{
|
||||
va_list argp ;
|
||||
char buffer [1024] ;
|
||||
|
@ -256,12 +364,14 @@ void lcdPrintf (int fd, char *message, ...)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int lcdInit (int rows, int cols, int bits, int rs, int strb,
|
||||
int d0, int d1, int d2, int d3, int d4, int d5, int d6, int d7)
|
||||
int lcdInit (const int rows, const int cols, const int bits,
|
||||
const int rs, const int strb,
|
||||
const int d0, const int d1, const int d2, const int d3, const int d4,
|
||||
const int d5, const int d6, const int d7)
|
||||
{
|
||||
static int initialised = 0 ;
|
||||
|
||||
uint8_t func ;
|
||||
unsigned char func ;
|
||||
int i ;
|
||||
int lcdFd = -1 ;
|
||||
struct lcdDataStruct *lcd ;
|
||||
|
@ -298,7 +408,7 @@ int lcdInit (int rows, int cols, int bits, int rs, int strb,
|
|||
if (lcdFd == -1)
|
||||
return -1 ;
|
||||
|
||||
lcd = malloc (sizeof (struct lcdDataStruct)) ;
|
||||
lcd = (struct lcdDataStruct *)malloc (sizeof (struct lcdDataStruct)) ;
|
||||
if (lcd == NULL)
|
||||
return -1 ;
|
||||
|
||||
|
@ -307,6 +417,8 @@ int lcdInit (int rows, int cols, int bits, int rs, int strb,
|
|||
lcd->bits = 8 ; // For now - we'll set it properly later.
|
||||
lcd->rows = rows ;
|
||||
lcd->cols = cols ;
|
||||
lcd->cx = 0 ;
|
||||
lcd->cy = 0 ;
|
||||
|
||||
lcd->dataPins [0] = d0 ;
|
||||
lcd->dataPins [1] = d1 ;
|
||||
|
@ -371,10 +483,13 @@ int lcdInit (int rows, int cols, int bits, int rs, int strb,
|
|||
|
||||
// Rest of the initialisation sequence
|
||||
|
||||
putCommand (lcd, LCD_ON_OFF | LCD_ON_OFF_D) ; delay (2) ;
|
||||
putCommand (lcd, LCD_ENTRY | LCD_ENTRY_ID) ; delay (2) ;
|
||||
putCommand (lcd, LCD_CDSHIFT | LCD_CDSHIFT_RL) ; delay (2) ;
|
||||
putCommand (lcd, LCD_CLEAR) ; delay (5) ;
|
||||
lcdDisplay (lcdFd, TRUE) ;
|
||||
lcdCursor (lcdFd, FALSE) ;
|
||||
lcdCursorBlink (lcdFd, FALSE) ;
|
||||
lcdClear (lcdFd) ;
|
||||
|
||||
putCommand (lcd, LCD_ENTRY | LCD_ENTRY_ID) ;
|
||||
putCommand (lcd, LCD_CDSHIFT | LCD_CDSHIFT_RL) ;
|
||||
|
||||
return lcdFd ;
|
||||
}
|
|
@ -0,0 +1,52 @@
|
|||
/*
|
||||
* lcd.h:
|
||||
* Text-based LCD driver.
|
||||
* This is designed to drive the parallel interface LCD drivers
|
||||
* based in the Hitachi HD44780U controller and compatables.
|
||||
*
|
||||
* Copyright (c) 2012 Gordon Henderson.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#define MAX_LCDS 8
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern void lcdHome (const int fd) ;
|
||||
extern void lcdClear (const int fd) ;
|
||||
extern void lcdDisplay (const int fd, int state) ;
|
||||
extern void lcdCursor (const int fd, int state) ;
|
||||
extern void lcdCursorBlink (const int fd, int state) ;
|
||||
extern void lcdSendCommand (const int fd, unsigned char command) ;
|
||||
extern void lcdPosition (const int fd, int x, int y) ;
|
||||
extern void lcdCharDef (const int fd, int index, unsigned char data [8]) ;
|
||||
extern void lcdPutchar (const int fd, unsigned char data) ;
|
||||
extern void lcdPuts (const int fd, const char *string) ;
|
||||
extern void lcdPrintf (const int fd, const char *message, ...) ;
|
||||
|
||||
extern int lcdInit (const int rows, const int cols, const int bits,
|
||||
const int rs, const int strb,
|
||||
const int d0, const int d1, const int d2, const int d3, const int d4,
|
||||
const int d5, const int d6, const int d7) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,673 @@
|
|||
/*
|
||||
* lcd128x64.c:
|
||||
* Graphics-based LCD driver.
|
||||
* This is designed to drive the parallel interface LCD drivers
|
||||
* based on the generic 12864H chips
|
||||
*
|
||||
* There are many variations on these chips, however they all mostly
|
||||
* seem to be similar.
|
||||
* This implementation has the Pins from the Pi hard-wired into it,
|
||||
* in particular wiringPi pins 0-7 so that we can use
|
||||
* digitalWriteByete() to speed things up somewhat.
|
||||
*
|
||||
* Copyright (c) 2013 Gordon Henderson.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
|
||||
#include "font.h"
|
||||
#include "lcd128x64.h"
|
||||
|
||||
// Size
|
||||
|
||||
#define LCD_WIDTH 128
|
||||
#define LCD_HEIGHT 64
|
||||
|
||||
// Hardware Pins
|
||||
// Note pins 0-7 are the 8-bit data port
|
||||
|
||||
#define CS1 10
|
||||
#define CS2 11
|
||||
#define STROBE 12
|
||||
#define RS 13
|
||||
|
||||
// Software copy of the framebuffer
|
||||
// it's 8-bit deep although the display itself is only 1-bit deep.
|
||||
|
||||
static unsigned char frameBuffer [LCD_WIDTH * LCD_HEIGHT] ;
|
||||
|
||||
static int maxX, maxY ;
|
||||
static int lastX, lastY ;
|
||||
static int xOrigin, yOrigin ;
|
||||
static int lcdOrientation = 0 ;
|
||||
|
||||
/*
|
||||
* strobe:
|
||||
* Toggle the strobe (Really the "E") pin to the device.
|
||||
* According to the docs, data is latched on the falling edge.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void strobe (void)
|
||||
{
|
||||
digitalWrite (STROBE, 1) ; delayMicroseconds (1) ;
|
||||
digitalWrite (STROBE, 0) ; delayMicroseconds (5) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* sentData:
|
||||
* Send an data or command byte to the display.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void sendData (const int data, const int chip)
|
||||
{
|
||||
digitalWrite (chip, 0) ;
|
||||
digitalWriteByte (data) ;
|
||||
strobe () ;
|
||||
digitalWrite (chip, 1) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* sendCommand:
|
||||
* Send a command byte to the display
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void sendCommand (const int command, const int chip)
|
||||
{
|
||||
digitalWrite (RS, 0) ;
|
||||
sendData (command, chip) ;
|
||||
digitalWrite (RS, 1) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* setCol: SetLine:
|
||||
* Set the column and line addresses
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void setCol (int col, const int chip)
|
||||
{ sendCommand (0x40 | (col & 0x3F), chip) ; }
|
||||
|
||||
static void setLine (int line, const int chip)
|
||||
{ sendCommand (0xB8 | (line & 0x07), chip) ; }
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64update:
|
||||
* Copy our software version to the real display
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64update (void)
|
||||
{
|
||||
int line, x, y, fbLoc ;
|
||||
unsigned char byte ;
|
||||
|
||||
// Left side
|
||||
|
||||
for (line = 0 ; line < 8 ; ++line)
|
||||
{
|
||||
setCol (0, CS1) ;
|
||||
setLine (line, CS1) ;
|
||||
|
||||
for (x = 63 ; x >= 0 ; --x)
|
||||
{
|
||||
byte = 0 ;
|
||||
for (y = 0 ; y < 8 ; ++y)
|
||||
{
|
||||
fbLoc = x + (((7 - line) * 8) + (7 - y)) * LCD_WIDTH ;
|
||||
if (frameBuffer [fbLoc] != 0)
|
||||
byte |= (1 << y) ;
|
||||
}
|
||||
sendData (byte, CS1) ;
|
||||
}
|
||||
}
|
||||
|
||||
// Right side
|
||||
|
||||
for (line = 0 ; line < 8 ; ++line)
|
||||
{
|
||||
setCol (0, CS2) ;
|
||||
setLine (line, CS2) ;
|
||||
|
||||
for (x = 127 ; x >= 64 ; --x)
|
||||
{
|
||||
byte = 0 ;
|
||||
for (y = 0 ; y < 8 ; ++y)
|
||||
{
|
||||
fbLoc = x + (((7 - line) * 8) + (7 - y)) * LCD_WIDTH ;
|
||||
if (frameBuffer [fbLoc] != 0)
|
||||
byte |= (1 << y) ;
|
||||
}
|
||||
sendData (byte, CS2) ;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64setOrigin:
|
||||
* Set the display offset origin
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64setOrigin (int x, int y)
|
||||
{
|
||||
xOrigin = x ;
|
||||
yOrigin = y ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64setOrientation:
|
||||
* Set the display orientation:
|
||||
* 0: Normal, the display is portrait mode, 0,0 is top left
|
||||
* 1: Landscape
|
||||
* 2: Portrait, flipped
|
||||
* 3: Landscape, flipped
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64setOrientation (int orientation)
|
||||
{
|
||||
lcdOrientation = orientation & 3 ;
|
||||
|
||||
lcd128x64setOrigin (0,0) ;
|
||||
|
||||
switch (lcdOrientation)
|
||||
{
|
||||
case 0:
|
||||
maxX = LCD_WIDTH ;
|
||||
maxY = LCD_HEIGHT ;
|
||||
break ;
|
||||
|
||||
case 1:
|
||||
maxX = LCD_HEIGHT ;
|
||||
maxY = LCD_WIDTH ;
|
||||
break ;
|
||||
|
||||
case 2:
|
||||
maxX = LCD_WIDTH ;
|
||||
maxY = LCD_HEIGHT ;
|
||||
break ;
|
||||
|
||||
case 3:
|
||||
maxX = LCD_HEIGHT ;
|
||||
maxY = LCD_WIDTH ;
|
||||
break ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64orientCoordinates:
|
||||
* Adjust the coordinates given to the display orientation
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64orientCoordinates (int *x, int *y)
|
||||
{
|
||||
register int tmp ;
|
||||
|
||||
*x += xOrigin ;
|
||||
*y += yOrigin ;
|
||||
*y = maxY - *y - 1 ;
|
||||
|
||||
switch (lcdOrientation)
|
||||
{
|
||||
case 0:
|
||||
break;
|
||||
|
||||
case 1:
|
||||
tmp = maxY - *y - 1 ;
|
||||
*y = *x ;
|
||||
*x = tmp ;
|
||||
break;
|
||||
|
||||
case 2:
|
||||
*x = maxX - *x - 1 ;
|
||||
*y = maxY - *y - 1 ;
|
||||
break;
|
||||
|
||||
case 3:
|
||||
*x = maxX - *x - 1 ;
|
||||
tmp = *y ;
|
||||
*y = *x ;
|
||||
*x = tmp ;
|
||||
break ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64getScreenSize:
|
||||
* Return the max X & Y screen sizes. Needs to be called again, if you
|
||||
* change screen orientation.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64getScreenSize (int *x, int *y)
|
||||
{
|
||||
*x = maxX ;
|
||||
*y = maxY ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
*********************************************************************************
|
||||
* Standard Graphical Functions
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64point:
|
||||
* Plot a pixel.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64point (int x, int y, int colour)
|
||||
{
|
||||
lastX = x ;
|
||||
lastY = y ;
|
||||
|
||||
lcd128x64orientCoordinates (&x, &y) ;
|
||||
|
||||
if ((x < 0) || (x >= LCD_WIDTH) || (y < 0) || (y >= LCD_HEIGHT))
|
||||
return ;
|
||||
|
||||
frameBuffer [x + y * LCD_WIDTH] = colour ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64line: lcd128x64lineTo:
|
||||
* Classic Bressenham Line code
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64line (int x0, int y0, int x1, int y1, int colour)
|
||||
{
|
||||
int dx, dy ;
|
||||
int sx, sy ;
|
||||
int err, e2 ;
|
||||
|
||||
lastX = x1 ;
|
||||
lastY = y1 ;
|
||||
|
||||
dx = abs (x1 - x0) ;
|
||||
dy = abs (y1 - y0) ;
|
||||
|
||||
sx = (x0 < x1) ? 1 : -1 ;
|
||||
sy = (y0 < y1) ? 1 : -1 ;
|
||||
|
||||
err = dx - dy ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
lcd128x64point (x0, y0, colour) ;
|
||||
|
||||
if ((x0 == x1) && (y0 == y1))
|
||||
break ;
|
||||
|
||||
e2 = 2 * err ;
|
||||
|
||||
if (e2 > -dy)
|
||||
{
|
||||
err -= dy ;
|
||||
x0 += sx ;
|
||||
}
|
||||
|
||||
if (e2 < dx)
|
||||
{
|
||||
err += dx ;
|
||||
y0 += sy ;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void lcd128x64lineTo (int x, int y, int colour)
|
||||
{
|
||||
lcd128x64line (lastX, lastY, x, y, colour) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64rectangle:
|
||||
* A rectangle is a spoilt days fishing
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64rectangle (int x1, int y1, int x2, int y2, int colour, int filled)
|
||||
{
|
||||
register int x ;
|
||||
|
||||
if (filled)
|
||||
{
|
||||
/**/ if (x1 == x2)
|
||||
lcd128x64line (x1, y1, x2, y2, colour) ;
|
||||
else if (x1 < x2)
|
||||
for (x = x1 ; x <= x2 ; ++x)
|
||||
lcd128x64line (x, y1, x, y2, colour) ;
|
||||
else
|
||||
for (x = x2 ; x <= x1 ; ++x)
|
||||
lcd128x64line (x, y1, x, y2, colour) ;
|
||||
}
|
||||
else
|
||||
{
|
||||
lcd128x64line (x1, y1, x2, y1, colour) ;
|
||||
lcd128x64lineTo (x2, y2, colour) ;
|
||||
lcd128x64lineTo (x1, y2, colour) ;
|
||||
lcd128x64lineTo (x1, y1, colour) ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64circle:
|
||||
* This is the midpoint circle algorithm.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64circle (int x, int y, int r, int colour, int filled)
|
||||
{
|
||||
int ddF_x = 1 ;
|
||||
int ddF_y = -2 * r ;
|
||||
|
||||
int f = 1 - r ;
|
||||
int x1 = 0 ;
|
||||
int y1 = r ;
|
||||
|
||||
if (filled)
|
||||
{
|
||||
lcd128x64line (x, y + r, x, y - r, colour) ;
|
||||
lcd128x64line (x + r, y, x - r, y, colour) ;
|
||||
}
|
||||
else
|
||||
{
|
||||
lcd128x64point (x, y + r, colour) ;
|
||||
lcd128x64point (x, y - r, colour) ;
|
||||
lcd128x64point (x + r, y, colour) ;
|
||||
lcd128x64point (x - r, y, colour) ;
|
||||
}
|
||||
|
||||
while (x1 < y1)
|
||||
{
|
||||
if (f >= 0)
|
||||
{
|
||||
y1-- ;
|
||||
ddF_y += 2 ;
|
||||
f += ddF_y ;
|
||||
}
|
||||
x1++ ;
|
||||
ddF_x += 2 ;
|
||||
f += ddF_x ;
|
||||
if (filled)
|
||||
{
|
||||
lcd128x64line (x + x1, y + y1, x - x1, y + y1, colour) ;
|
||||
lcd128x64line (x + x1, y - y1, x - x1, y - y1, colour) ;
|
||||
lcd128x64line (x + y1, y + x1, x - y1, y + x1, colour) ;
|
||||
lcd128x64line (x + y1, y - x1, x - y1, y - x1, colour) ;
|
||||
}
|
||||
else
|
||||
{
|
||||
lcd128x64point (x + x1, y + y1, colour) ; lcd128x64point (x - x1, y + y1, colour) ;
|
||||
lcd128x64point (x + x1, y - y1, colour) ; lcd128x64point (x - x1, y - y1, colour) ;
|
||||
lcd128x64point (x + y1, y + x1, colour) ; lcd128x64point (x - y1, y + x1, colour) ;
|
||||
lcd128x64point (x + y1, y - x1, colour) ; lcd128x64point (x - y1, y - x1, colour) ;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64ellipse:
|
||||
* Fast ellipse drawing algorithm by
|
||||
* John Kennedy
|
||||
* Mathematics Department
|
||||
* Santa Monica College
|
||||
* 1900 Pico Blvd.
|
||||
* Santa Monica, CA 90405
|
||||
* jrkennedy6@gmail.com
|
||||
* -Confirned in email this algorithm is in the public domain -GH-
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void plot4ellipsePoints (int cx, int cy, int x, int y, int colour, int filled)
|
||||
{
|
||||
if (filled)
|
||||
{
|
||||
lcd128x64line (cx + x, cy + y, cx - x, cy + y, colour) ;
|
||||
lcd128x64line (cx - x, cy - y, cx + x, cy - y, colour) ;
|
||||
}
|
||||
else
|
||||
{
|
||||
lcd128x64point (cx + x, cy + y, colour) ;
|
||||
lcd128x64point (cx - x, cy + y, colour) ;
|
||||
lcd128x64point (cx - x, cy - y, colour) ;
|
||||
lcd128x64point (cx + x, cy - y, colour) ;
|
||||
}
|
||||
}
|
||||
|
||||
void lcd128x64ellipse (int cx, int cy, int xRadius, int yRadius, int colour, int filled)
|
||||
{
|
||||
int x, y ;
|
||||
int xChange, yChange, ellipseError ;
|
||||
int twoAsquare, twoBsquare ;
|
||||
int stoppingX, stoppingY ;
|
||||
|
||||
twoAsquare = 2 * xRadius * xRadius ;
|
||||
twoBsquare = 2 * yRadius * yRadius ;
|
||||
|
||||
x = xRadius ;
|
||||
y = 0 ;
|
||||
|
||||
xChange = yRadius * yRadius * (1 - 2 * xRadius) ;
|
||||
yChange = xRadius * xRadius ;
|
||||
|
||||
ellipseError = 0 ;
|
||||
stoppingX = twoBsquare * xRadius ;
|
||||
stoppingY = 0 ;
|
||||
|
||||
while (stoppingX >= stoppingY) // 1st set of points
|
||||
{
|
||||
plot4ellipsePoints (cx, cy, x, y, colour, filled) ;
|
||||
++y ;
|
||||
stoppingY += twoAsquare ;
|
||||
ellipseError += yChange ;
|
||||
yChange += twoAsquare ;
|
||||
|
||||
if ((2 * ellipseError + xChange) > 0 )
|
||||
{
|
||||
--x ;
|
||||
stoppingX -= twoBsquare ;
|
||||
ellipseError += xChange ;
|
||||
xChange += twoBsquare ;
|
||||
}
|
||||
}
|
||||
|
||||
x = 0 ;
|
||||
y = yRadius ;
|
||||
|
||||
xChange = yRadius * yRadius ;
|
||||
yChange = xRadius * xRadius * (1 - 2 * yRadius) ;
|
||||
|
||||
ellipseError = 0 ;
|
||||
stoppingX = 0 ;
|
||||
stoppingY = twoAsquare * yRadius ;
|
||||
|
||||
while (stoppingX <= stoppingY) //2nd set of points
|
||||
{
|
||||
plot4ellipsePoints (cx, cy, x, y, colour, filled) ;
|
||||
++x ;
|
||||
stoppingX += twoBsquare ;
|
||||
ellipseError += xChange ;
|
||||
xChange += twoBsquare ;
|
||||
|
||||
if ((2 * ellipseError + yChange) > 0 )
|
||||
{
|
||||
--y ;
|
||||
stoppingY -= twoAsquare ;
|
||||
ellipseError += yChange ;
|
||||
yChange += twoAsquare ;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64putchar:
|
||||
* Print a single character to the screen
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64putchar (int x, int y, int c, int bgCol, int fgCol)
|
||||
{
|
||||
int y1, y2 ;
|
||||
|
||||
unsigned char line ;
|
||||
unsigned char *fontPtr ;
|
||||
|
||||
// Can't print if we're offscreen
|
||||
|
||||
//if ((x < 0) || (x >= (maxX - fontWidth)) || (y < 0) || (y >= (maxY - fontHeight)))
|
||||
// return ;
|
||||
|
||||
fontPtr = font + c * fontHeight ;
|
||||
|
||||
for (y1 = fontHeight - 1 ; y1 >= 0 ; --y1)
|
||||
{
|
||||
y2 = y + y1 ;
|
||||
line = *fontPtr++ ;
|
||||
lcd128x64point (x + 0, y2, (line & 0x80) == 0 ? bgCol : fgCol) ;
|
||||
lcd128x64point (x + 1, y2, (line & 0x40) == 0 ? bgCol : fgCol) ;
|
||||
lcd128x64point (x + 2, y2, (line & 0x20) == 0 ? bgCol : fgCol) ;
|
||||
lcd128x64point (x + 3, y2, (line & 0x10) == 0 ? bgCol : fgCol) ;
|
||||
lcd128x64point (x + 4, y2, (line & 0x08) == 0 ? bgCol : fgCol) ;
|
||||
lcd128x64point (x + 5, y2, (line & 0x04) == 0 ? bgCol : fgCol) ;
|
||||
lcd128x64point (x + 6, y2, (line & 0x02) == 0 ? bgCol : fgCol) ;
|
||||
lcd128x64point (x + 7, y2, (line & 0x01) == 0 ? bgCol : fgCol) ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64puts:
|
||||
* Send a string to the display. Obeys \n and \r formatting
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64puts (int x, int y, const char *str, int bgCol, int fgCol)
|
||||
{
|
||||
int c, mx, my ;
|
||||
|
||||
mx = x ; my = y ;
|
||||
|
||||
while (*str)
|
||||
{
|
||||
c = *str++ ;
|
||||
|
||||
if (c == '\r')
|
||||
{
|
||||
mx = x ;
|
||||
continue ;
|
||||
}
|
||||
|
||||
if (c == '\n')
|
||||
{
|
||||
mx = x ;
|
||||
my -= fontHeight ;
|
||||
continue ;
|
||||
}
|
||||
|
||||
lcd128x64putchar (mx, my, c, bgCol, fgCol) ;
|
||||
|
||||
mx += fontWidth ;
|
||||
if (mx >= (maxX - fontWidth))
|
||||
{
|
||||
mx = 0 ;
|
||||
my -= fontHeight ;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64clear:
|
||||
* Clear the display to the given colour.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lcd128x64clear (int colour)
|
||||
{
|
||||
register int i ;
|
||||
register unsigned char *ptr = frameBuffer ;
|
||||
|
||||
for (i = 0 ; i < (maxX * maxY) ; ++i)
|
||||
*ptr++ = colour ;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* lcd128x64setup:
|
||||
* Initialise the display and GPIO.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int lcd128x64setup (void)
|
||||
{
|
||||
int i ;
|
||||
|
||||
for (i = 0 ; i < 8 ; ++i)
|
||||
pinMode (i, OUTPUT) ;
|
||||
|
||||
digitalWrite (CS1, 1) ;
|
||||
digitalWrite (CS2, 1) ;
|
||||
digitalWrite (STROBE, 0) ;
|
||||
digitalWrite (RS, 1) ;
|
||||
|
||||
pinMode (CS1, OUTPUT) ;
|
||||
pinMode (CS2, OUTPUT) ;
|
||||
pinMode (STROBE, OUTPUT) ;
|
||||
pinMode (RS, OUTPUT) ;
|
||||
|
||||
sendCommand (0x3F, CS1) ; // Display ON
|
||||
sendCommand (0xC0, CS1) ; // Set display start line to 0
|
||||
|
||||
sendCommand (0x3F, CS2) ; // Display ON
|
||||
sendCommand (0xC0, CS2) ; // Set display start line to 0
|
||||
|
||||
lcd128x64clear (0) ;
|
||||
lcd128x64setOrientation (0) ;
|
||||
lcd128x64update () ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,39 @@
|
|||
/*
|
||||
* lcd128x64.h:
|
||||
*
|
||||
* Copyright (c) 2013 Gordon Henderson.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
extern void lcd128x64setOrigin (int x, int y) ;
|
||||
extern void lcd128x64setOrientation (int orientation) ;
|
||||
extern void lcd128x64orientCoordinates (int *x, int *y) ;
|
||||
extern void lcd128x64getScreenSize (int *x, int *y) ;
|
||||
extern void lcd128x64point (int x, int y, int colour) ;
|
||||
extern void lcd128x64line (int x0, int y0, int x1, int y1, int colour) ;
|
||||
extern void lcd128x64lineTo (int x, int y, int colour) ;
|
||||
extern void lcd128x64rectangle (int x1, int y1, int x2, int y2, int colour, int filled) ;
|
||||
extern void lcd128x64circle (int x, int y, int r, int colour, int filled) ;
|
||||
extern void lcd128x64ellipse (int cx, int cy, int xRadius, int yRadius, int colour, int filled) ;
|
||||
extern void lcd128x64putchar (int x, int y, int c, int bgCol, int fgCol) ;
|
||||
extern void lcd128x64puts (int x, int y, const char *str, int bgCol, int fgCol) ;
|
||||
extern void lcd128x64update (void) ;
|
||||
extern void lcd128x64clear (int colour) ;
|
||||
|
||||
extern int lcd128x64setup (void) ;
|
|
@ -0,0 +1,165 @@
|
|||
/*
|
||||
* maxdetect.c:
|
||||
* Driver for the MaxDetect series sensors
|
||||
*
|
||||
* Copyright (c) 2013 Gordon Henderson.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
//#include <stdio.h>
|
||||
//#include <stdlib.h>
|
||||
//#include <unistd.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
|
||||
#include "maxdetect.h"
|
||||
|
||||
#ifndef TRUE
|
||||
# define TRUE (1==1)
|
||||
# define FALSE (1==2)
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
* maxDetectLowHighWait:
|
||||
* Wait for a transition from high to low on the bus
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void maxDetectLowHighWait (const int pin)
|
||||
{
|
||||
unsigned int timeOut = millis () + 2000 ;
|
||||
|
||||
while (digitalRead (pin) == HIGH)
|
||||
if (millis () > timeOut)
|
||||
return ;
|
||||
|
||||
while (digitalRead (pin) == LOW)
|
||||
if (millis () > timeOut)
|
||||
return ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* maxDetectClockByte:
|
||||
* Read in a single byte from the MaxDetect bus
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static unsigned int maxDetectClockByte (const int pin)
|
||||
{
|
||||
unsigned int byte = 0 ;
|
||||
int bit ;
|
||||
|
||||
for (bit = 0 ; bit < 8 ; ++bit)
|
||||
{
|
||||
maxDetectLowHighWait (pin) ;
|
||||
|
||||
// bit starting now - we need to time it.
|
||||
|
||||
delayMicroseconds (30) ;
|
||||
byte <<= 1 ;
|
||||
if (digitalRead (pin) == HIGH) // It's a 1
|
||||
byte |= 1 ;
|
||||
}
|
||||
|
||||
return byte ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* maxDetectRead:
|
||||
* Read in and return the 4 data bytes from the MaxDetect sensor.
|
||||
* Return TRUE/FALSE depending on the checksum validity
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int maxDetectRead (const int pin, unsigned char buffer [4])
|
||||
{
|
||||
int i ;
|
||||
unsigned int checksum ;
|
||||
unsigned char localBuf [5] ;
|
||||
|
||||
// Wake up the RHT03 by pulling the data line low, then high
|
||||
// Low for 10mS, high for 40uS.
|
||||
|
||||
pinMode (pin, OUTPUT) ;
|
||||
digitalWrite (pin, 0) ; delay (10) ;
|
||||
digitalWrite (pin, 1) ; delayMicroseconds (40) ;
|
||||
pinMode (pin, INPUT) ;
|
||||
|
||||
// Now wait for sensor to pull pin low
|
||||
|
||||
maxDetectLowHighWait (pin) ;
|
||||
|
||||
// and read in 5 bytes (40 bits)
|
||||
|
||||
for (i = 0 ; i < 5 ; ++i)
|
||||
localBuf [i] = maxDetectClockByte (pin) ;
|
||||
|
||||
checksum = 0 ;
|
||||
for (i = 0 ; i < 4 ; ++i)
|
||||
{
|
||||
buffer [i] = localBuf [i] ;
|
||||
checksum += localBuf [i] ;
|
||||
}
|
||||
checksum &= 0xFF ;
|
||||
|
||||
return checksum == localBuf [4] ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* readRHT03:
|
||||
* Read the Temperature & Humidity from an RHT03 sensor
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int readRHT03 (const int pin, int *temp, int *rh)
|
||||
{
|
||||
static unsigned int nextTime = 0 ;
|
||||
static int lastTemp = 0 ;
|
||||
static int lastRh = 0 ;
|
||||
static int lastResult = TRUE ;
|
||||
|
||||
unsigned char buffer [4] ;
|
||||
|
||||
// Don't read more than once a second
|
||||
|
||||
if (millis () < nextTime)
|
||||
{
|
||||
*temp = lastTemp ;
|
||||
*rh = lastRh ;
|
||||
return lastResult ;
|
||||
}
|
||||
|
||||
lastResult = maxDetectRead (pin, buffer) ;
|
||||
|
||||
if (lastResult)
|
||||
{
|
||||
*temp = lastTemp = (buffer [2] * 256 + buffer [3]) ;
|
||||
*rh = lastRh = (buffer [0] * 256 + buffer [1]) ;
|
||||
nextTime = millis () + 2000 ;
|
||||
return TRUE ;
|
||||
}
|
||||
else
|
||||
{
|
||||
return FALSE ;
|
||||
}
|
||||
}
|
|
@ -0,0 +1,40 @@
|
|||
/*
|
||||
* maxdetect.h:
|
||||
* Driver for the MaxDetect series sensors
|
||||
*
|
||||
* Copyright (c) 2013 Gordon Henderson.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
// Main generic function
|
||||
|
||||
int maxDetectRead (const int pin, unsigned char buffer [4]) ;
|
||||
|
||||
// Individual sensors
|
||||
|
||||
int readRHT03 (const int pin, int *temp, int *rh) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,112 @@
|
|||
/*
|
||||
* piFace.:
|
||||
* This file to interface with the PiFace peripheral device which
|
||||
* has an MCP23S17 GPIO device connected via the SPI bus.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <mcp23s17.h>
|
||||
|
||||
#include "piFace.h"
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalWrite:
|
||||
* Perform the digitalWrite function on the PiFace board
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void myDigitalWrite (struct wiringPiNodeStruct *node, int pin, int value)
|
||||
{
|
||||
digitalWrite (pin + 16, value) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalRead:
|
||||
* Perform the digitalRead function on the PiFace board
|
||||
* With a slight twist - if we read from base + 8, then we
|
||||
* read from the output latch...
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int myDigitalRead (struct wiringPiNodeStruct *node, int pin)
|
||||
{
|
||||
if ((pin - node->pinBase) >= 8)
|
||||
return digitalRead (pin + 8) ;
|
||||
else
|
||||
return digitalRead (pin + 16 + 8) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myPullUpDnControl:
|
||||
* Perform the pullUpDnControl function on the PiFace board
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void myPullUpDnControl (struct wiringPiNodeStruct *node, int pin, int pud)
|
||||
{
|
||||
pullUpDnControl (pin + 16 + 8, pud) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* piFaceSetup
|
||||
* We're going to create an instance of the mcp23s17 here, then
|
||||
* provide our own read/write routines on-top of it...
|
||||
* The supplied PiFace code (in Pithon) treats it as an 8-bit device
|
||||
* where you write the output ports and read the input port using the
|
||||
* same pin numbers, however I have had a request to be able to read
|
||||
* the output port, so reading 8..15 will read the output latch.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int piFaceSetup (const int pinBase)
|
||||
{
|
||||
int i ;
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
// Create an mcp23s17 instance:
|
||||
|
||||
mcp23s17Setup (pinBase + 16, 0, 0) ;
|
||||
|
||||
// Set the direction bits
|
||||
|
||||
for (i = 0 ; i < 8 ; ++i)
|
||||
{
|
||||
pinMode (pinBase + 16 + i, OUTPUT) ; // Port A is the outputs
|
||||
pinMode (pinBase + 16 + 8 + i, INPUT) ; // Port B inputs.
|
||||
}
|
||||
|
||||
node = wiringPiNewNode (pinBase, 16) ;
|
||||
node->digitalRead = myDigitalRead ;
|
||||
node->digitalWrite = myDigitalWrite ;
|
||||
node->pullUpDnControl = myPullUpDnControl ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,32 @@
|
|||
/*
|
||||
* piFace.h:
|
||||
* Control the PiFace Interface board for the Raspberry Pi
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int piFaceSetup (const int pinBase) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,178 @@
|
|||
/*
|
||||
* piFace.:
|
||||
* Arduino compatable (ish) Wiring library for the Raspberry Pi
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
*
|
||||
* This file to interface with the PiFace peripheral device which
|
||||
* has an MCP23S17 GPIO device connected via the SPI bus.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <wiringPiSPI.h>
|
||||
|
||||
#include "../wiringPi/mcp23x0817.h"
|
||||
|
||||
#include "piFace.h"
|
||||
|
||||
#define PIFACE_SPEED 4000000
|
||||
#define PIFACE_DEVNO 0
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* writeByte:
|
||||
* Write a byte to a register on the MCP23S17 on the SPI bus.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void writeByte (uint8_t reg, uint8_t data)
|
||||
{
|
||||
uint8_t spiData [4] ;
|
||||
|
||||
spiData [0] = CMD_WRITE ;
|
||||
spiData [1] = reg ;
|
||||
spiData [2] = data ;
|
||||
|
||||
wiringPiSPIDataRW (PIFACE_DEVNO, spiData, 3) ;
|
||||
}
|
||||
|
||||
/*
|
||||
* readByte:
|
||||
* Read a byte from a register on the MCP23S17 on the SPI bus.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static uint8_t readByte (uint8_t reg)
|
||||
{
|
||||
uint8_t spiData [4] ;
|
||||
|
||||
spiData [0] = CMD_READ ;
|
||||
spiData [1] = reg ;
|
||||
|
||||
wiringPiSPIDataRW (PIFACE_DEVNO, spiData, 3) ;
|
||||
|
||||
return spiData [2] ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalWrite:
|
||||
* Perform the digitalWrite function on the PiFace board
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void myDigitalWrite (struct wiringPiNodeStruct *node, int pin, int value)
|
||||
{
|
||||
uint8_t mask, old ;
|
||||
|
||||
pin -= node->pinBase ;
|
||||
mask = 1 << pin ;
|
||||
old = readByte (MCP23x17_GPIOA) ;
|
||||
|
||||
if (value == 0)
|
||||
old &= (~mask) ;
|
||||
else
|
||||
old |= mask ;
|
||||
|
||||
writeByte (MCP23x17_GPIOA, old) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalRead:
|
||||
* Perform the digitalRead function on the PiFace board
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int myDigitalRead (struct wiringPiNodeStruct *node, int pin)
|
||||
{
|
||||
uint8_t mask, reg ;
|
||||
|
||||
mask = 1 << ((pin - node->pinBase) & 7) ;
|
||||
|
||||
if (pin < 8)
|
||||
reg = MCP23x17_GPIOB ; // Input regsiter
|
||||
else
|
||||
reg = MCP23x17_OLATA ; // Output latch regsiter
|
||||
|
||||
if ((readByte (reg) & mask) != 0)
|
||||
return HIGH ;
|
||||
else
|
||||
return LOW ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myPullUpDnControl:
|
||||
* Perform the pullUpDnControl function on the PiFace board
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void myPullUpDnControl (struct wiringPiNodeStruct *node, int pin, int pud)
|
||||
{
|
||||
uint8_t mask, old ;
|
||||
|
||||
mask = 1 << (pin - node->pinBase) ;
|
||||
old = readByte (MCP23x17_GPPUB) ;
|
||||
|
||||
if (pud == 0)
|
||||
old &= (~mask) ;
|
||||
else
|
||||
old |= mask ;
|
||||
|
||||
writeByte (MCP23x17_GPPUB, old) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* piFaceSetup
|
||||
* Setup the SPI interface and initialise the MCP23S17 chip
|
||||
* We create one node with 16 pins - each if the first 8 pins being read
|
||||
* and write - although the operations actually go to different
|
||||
* hardware ports. The top 8 let you read the state of the output register.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int piFaceSetup (const int pinBase)
|
||||
{
|
||||
int x ;
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
if ((x = wiringPiSPISetup (PIFACE_DEVNO, PIFACE_SPEED)) < 0)
|
||||
return x ;
|
||||
|
||||
// Setup the MCP23S17
|
||||
|
||||
writeByte (MCP23x17_IOCON, IOCON_INIT) ;
|
||||
writeByte (MCP23x17_IODIRA, 0x00) ; // Port A -> Outputs
|
||||
writeByte (MCP23x17_IODIRB, 0xFF) ; // Port B -> Inputs
|
||||
|
||||
node = wiringPiNewNode (pinBase, 16) ;
|
||||
node->digitalRead = myDigitalRead ;
|
||||
node->digitalWrite = myDigitalWrite ;
|
||||
node->pullUpDnControl = myPullUpDnControl ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,221 @@
|
|||
/*
|
||||
* 7segments.c:
|
||||
* Simple test program to see if we can drive a 7-segment LED
|
||||
* display using the GPIO and little else on the Raspberry Pi
|
||||
*
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#undef PHOTO_HACK
|
||||
|
||||
#include <wiringPi.h>
|
||||
|
||||
#include <stdio.h>
|
||||
#include <time.h>
|
||||
#include <ctype.h>
|
||||
#include <string.h>
|
||||
|
||||
/*
|
||||
* Segment mapping
|
||||
*
|
||||
* --a--
|
||||
* | |
|
||||
* f b
|
||||
* | |
|
||||
* --g--
|
||||
* | |
|
||||
* e c
|
||||
* | |
|
||||
* --d-- p
|
||||
*/
|
||||
|
||||
// GPIO Pin Mapping
|
||||
|
||||
static int digits [6] = { 7, 11, 10, 13, 12, 14 } ;
|
||||
static int segments [7] = { 6, 5, 4, 3, 2, 1, 0 } ;
|
||||
|
||||
|
||||
static const int segmentDigits [] =
|
||||
{
|
||||
// a b c d e f g Segments
|
||||
// 6 5 4 3 2 1 0, // wiringPi pin No.
|
||||
|
||||
1, 1, 1, 1, 1, 1, 0, // 0
|
||||
0, 1, 1, 0, 0, 0, 0, // 1
|
||||
1, 1, 0, 1, 1, 0, 1, // 2
|
||||
1, 1, 1, 1, 0, 0, 1, // 3
|
||||
0, 1, 1, 0, 0, 1, 1, // 4
|
||||
1, 0, 1, 1, 0, 1, 1, // 5
|
||||
1, 0, 1, 1, 1, 1, 1, // 6
|
||||
1, 1, 1, 0, 0, 0, 0, // 7
|
||||
1, 1, 1, 1, 1, 1, 1, // 8
|
||||
1, 1, 1, 1, 0, 1, 1, // 9
|
||||
1, 1, 1, 0, 1, 1, 1, // A
|
||||
0, 0, 1, 1, 1, 1, 1, // b
|
||||
1, 0, 0, 1, 1, 1, 0, // C
|
||||
0, 1, 1, 1, 1, 0, 1, // d
|
||||
1, 0, 0, 1, 1, 1, 1, // E
|
||||
1, 0, 0, 0, 1, 1, 1, // F
|
||||
0, 0, 0, 0, 0, 0, 0, // blank
|
||||
} ;
|
||||
|
||||
|
||||
// display:
|
||||
// A global variable which is written to by the main program and
|
||||
// read from by the thread that updates the display. Only the first
|
||||
// 6 characters are used.
|
||||
|
||||
char display [8] ;
|
||||
|
||||
|
||||
/*
|
||||
* displayDigits:
|
||||
* This is our thread that's run concurrently with the main program.
|
||||
* Essentially sit in a loop, parsing and displaying the data held in
|
||||
* the "display" global.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
PI_THREAD (displayDigits)
|
||||
{
|
||||
int digit, segment ;
|
||||
int index, d, segVal ;
|
||||
|
||||
piHiPri (50) ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
for (digit = 0 ; digit < 6 ; ++digit)
|
||||
{
|
||||
for (segment = 0 ; segment < 7 ; ++segment)
|
||||
{
|
||||
d = toupper (display [digit]) ;
|
||||
/**/ if ((d >= '0') && (d <= '9')) // Digit
|
||||
index = d - '0' ;
|
||||
else if ((d >= 'A') && (d <= 'F')) // Hex
|
||||
index = d - 'A' + 10 ;
|
||||
else
|
||||
index = 16 ; // Blank
|
||||
|
||||
segVal = segmentDigits [index * 7 + segment] ;
|
||||
|
||||
digitalWrite (segments [segment], segVal) ;
|
||||
}
|
||||
digitalWrite (digits [digit], 1) ;
|
||||
delay (2) ;
|
||||
digitalWrite (digits [digit], 0) ;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* setup:
|
||||
* Initialise the hardware and start the thread
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void setup (void)
|
||||
{
|
||||
int i, c ;
|
||||
|
||||
wiringPiSetup () ;
|
||||
|
||||
// 7 segments
|
||||
|
||||
for (i = 0 ; i < 7 ; ++i)
|
||||
{ digitalWrite (segments [i], 0) ; pinMode (segments [i], OUTPUT) ; }
|
||||
|
||||
// 6 digits
|
||||
|
||||
for (i = 0 ; i < 6 ; ++i)
|
||||
{ digitalWrite (digits [i], 0) ; pinMode (digits [i], OUTPUT) ; }
|
||||
|
||||
strcpy (display, " ") ;
|
||||
piThreadCreate (displayDigits) ;
|
||||
delay (10) ; // Just to make sure it's started
|
||||
|
||||
// Quick countdown LED test sort of thing
|
||||
|
||||
c = 999999 ;
|
||||
for (i = 0 ; i < 10 ; ++i)
|
||||
{
|
||||
sprintf (display, "%06d", c) ;
|
||||
delay (400) ;
|
||||
c -= 111111 ;
|
||||
}
|
||||
|
||||
strcpy (display, " ") ;
|
||||
delay (400) ;
|
||||
|
||||
#ifdef PHOTO_HACK
|
||||
sprintf (display, "%s", "123456") ;
|
||||
for (;;)
|
||||
delay (1000) ;
|
||||
#endif
|
||||
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* teenager:
|
||||
* No explanation needed. (Nor one given!)
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void teenager (void)
|
||||
{
|
||||
char *message = " feedbeef babe cafe b00b " ;
|
||||
int i ;
|
||||
|
||||
for (i = 0 ; i < strlen (message) - 4 ; ++i)
|
||||
{
|
||||
strncpy (display, &message [i], 6) ;
|
||||
delay (200) ;
|
||||
}
|
||||
delay (1000) ;
|
||||
for (i = 0 ; i < 3 ; ++i)
|
||||
{
|
||||
strcpy (display, " ") ;
|
||||
delay (150) ;
|
||||
strcpy (display, " b00b ") ;
|
||||
delay (250) ;
|
||||
}
|
||||
delay (1000) ;
|
||||
strcpy (display, " ") ;
|
||||
delay (1000) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
*********************************************************************************
|
||||
* main:
|
||||
* Let the fun begin
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int main (void)
|
||||
{
|
||||
struct tm *t ;
|
||||
time_t tim ;
|
||||
|
||||
setup () ;
|
||||
teenager () ;
|
||||
|
||||
tim = time (NULL) ;
|
||||
for (;;)
|
||||
{
|
||||
while (time (NULL) == tim)
|
||||
delay (5) ;
|
||||
|
||||
tim = time (NULL) ;
|
||||
t = localtime (&tim) ;
|
||||
|
||||
sprintf (display, "%02d%02d%02d", t->tm_hour, t->tm_min, t->tm_sec) ;
|
||||
|
||||
delay (500) ;
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,74 @@
|
|||
#
|
||||
# Makefile:
|
||||
# Gertboard - Examples using wiringPi
|
||||
#
|
||||
# Copyright (c) 2013 Gordon Henderson
|
||||
#################################################################################
|
||||
|
||||
#DEBUG = -g -O0
|
||||
DEBUG = -O3
|
||||
CC = gcc
|
||||
INCLUDE = -I/usr/local/include
|
||||
CFLAGS = $(DEBUG) -Wall $(INCLUDE) -Winline -pipe
|
||||
|
||||
LDFLAGS = -L/usr/local/lib
|
||||
LDLIBS = -lwiringPi -lwiringPiDev -lpthread -lm
|
||||
|
||||
# Should not alter anything below this line
|
||||
###############################################################################
|
||||
|
||||
SRC = gertboard.c \
|
||||
buttons.c 7segments.c \
|
||||
voltmeter.c temperature.c vumeter.c \
|
||||
record.c
|
||||
|
||||
OBJ = $(SRC:.c=.o)
|
||||
|
||||
BINS = $(SRC:.c=)
|
||||
|
||||
all: $(BINS)
|
||||
|
||||
gertboard: gertboard.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ gertboard.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
buttons: buttons.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ buttons.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
7segments: 7segments.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ 7segments.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
voltmeter: voltmeter.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ voltmeter.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
temperature: temperature.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ temperature.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
vumeter: vumeter.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ vumeter.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
record: record.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ record.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
.c.o:
|
||||
@echo [CC] $<
|
||||
@$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
clean:
|
||||
@echo [Clean]
|
||||
@rm -f $(OBJ) *~ core tags $(BINS)
|
||||
|
||||
tags: $(SRC)
|
||||
@echo [ctags]
|
||||
@ctags $(SRC)
|
||||
|
||||
depend:
|
||||
makedepend -Y $(SRC)
|
||||
|
||||
# DO NOT DELETE
|
|
@ -0,0 +1,83 @@
|
|||
/*
|
||||
* buttons.c:
|
||||
* Read the Gertboard buttons. Each one will act as an on/off
|
||||
* tiggle switch for 3 different LEDs
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <wiringPi.h>
|
||||
|
||||
// Array to keep track of our LEDs
|
||||
|
||||
int leds [] = { 0, 0, 0 } ;
|
||||
|
||||
// scanButton:
|
||||
// See if a button is pushed, if so, then flip that LED and
|
||||
// wait for the button to be let-go
|
||||
|
||||
void scanButton (int button)
|
||||
{
|
||||
if (digitalRead (button) == HIGH) // Low is pushed
|
||||
return ;
|
||||
|
||||
leds [button] ^= 1 ; // Invert state
|
||||
digitalWrite (4 + button, leds [button]) ;
|
||||
|
||||
while (digitalRead (button) == LOW) // Wait for release
|
||||
delay (10) ;
|
||||
}
|
||||
|
||||
int main (void)
|
||||
{
|
||||
int i ;
|
||||
|
||||
printf ("Raspberry Pi Gertboard Button Test\n") ;
|
||||
|
||||
wiringPiSetup () ;
|
||||
|
||||
// Setup the outputs:
|
||||
// Pins 3, 4, 5, 6 and 7 output:
|
||||
// We're not using 3 or 4, but make sure they're off anyway
|
||||
// (Using same hardware config as blink12.c)
|
||||
|
||||
for (i = 3 ; i < 8 ; ++i)
|
||||
{
|
||||
pinMode (i, OUTPUT) ;
|
||||
digitalWrite (i, 0) ;
|
||||
}
|
||||
|
||||
// Setup the inputs
|
||||
|
||||
for (i = 0 ; i < 3 ; ++i)
|
||||
{
|
||||
pinMode (i, INPUT) ;
|
||||
pullUpDnControl (i, PUD_UP) ;
|
||||
leds [i] = 0 ;
|
||||
}
|
||||
|
||||
for (;;)
|
||||
{
|
||||
for (i = 0 ; i < 3 ; ++i)
|
||||
scanButton (i) ;
|
||||
delay (1) ;
|
||||
}
|
||||
}
|
|
@ -6,8 +6,8 @@
|
|||
* D/A port 0 jumpered to A/D port 0.
|
||||
*
|
||||
* We output a sine wave on D/A port 0 and sample A/D port 0. We then
|
||||
* copy this value to D/A port 1 and use a 'scope on both D/A ports
|
||||
* to check all's well.
|
||||
* plot the input value on the terminal as a sort of vertical scrolling
|
||||
* oscilloscipe.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
|
@ -30,11 +30,13 @@
|
|||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <stdlib.h>
|
||||
#include <math.h>
|
||||
|
||||
#define B_SIZE 200
|
||||
#undef DO_TIMING
|
||||
// Gertboard D to A is an 8-bit unit.
|
||||
|
||||
#define B_SIZE 256
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <gertboard.h>
|
||||
|
@ -42,23 +44,28 @@
|
|||
int main (void)
|
||||
{
|
||||
double angle ;
|
||||
int i ;
|
||||
uint32_t x1 ;
|
||||
int i, inputValue ;
|
||||
int buffer [B_SIZE] ;
|
||||
int cols ;
|
||||
struct winsize w ;
|
||||
|
||||
#ifdef DO_TIMING
|
||||
unsigned int now, then ;
|
||||
#endif
|
||||
|
||||
printf ("Raspberry Pi Gertboard SPI test program\n") ;
|
||||
printf ("=======================================\n") ;
|
||||
|
||||
if (wiringPiSetupSys () < 0)
|
||||
return -1 ;
|
||||
ioctl (fileno (stdin), TIOCGWINSZ, &w);
|
||||
cols = w.ws_col - 2 ;
|
||||
|
||||
if (gertboardSPISetup () < 0)
|
||||
return 1 ;
|
||||
// Always initialise wiringPi. Use wiringPiSys() if you don't need
|
||||
// (or want) to run as root
|
||||
|
||||
// Generate a Sine Wave
|
||||
wiringPiSetupSys () ;
|
||||
|
||||
// Initialise the Gertboard analog hardware at pin 100
|
||||
|
||||
gertboardAnalogSetup (100) ;
|
||||
|
||||
// Generate a Sine Wave and store in our buffer
|
||||
|
||||
for (i = 0 ; i < B_SIZE ; ++i)
|
||||
{
|
||||
|
@ -66,28 +73,23 @@ int main (void)
|
|||
buffer [i] = (int)rint ((sin (angle)) * 127.0 + 128.0) ;
|
||||
}
|
||||
|
||||
// Loop, output the sine wave on analog out port 0, read it into A-D port 0
|
||||
// and display it on the screen
|
||||
|
||||
for (;;)
|
||||
{
|
||||
#ifdef DO_TIMING
|
||||
then = millis () ;
|
||||
#endif
|
||||
|
||||
for (i = 0 ; i < B_SIZE ; ++i)
|
||||
{
|
||||
gertboardAnalogWrite (0, buffer [i]) ;
|
||||
analogWrite (100, buffer [i]) ;
|
||||
|
||||
#ifndef DO_TIMING
|
||||
x1 = gertboardAnalogRead (0) ;
|
||||
gertboardAnalogWrite (1, x1 >> 2) ; // 10-bit A/D, 8-bit D/A
|
||||
#endif
|
||||
inputValue = analogRead (100) ;
|
||||
|
||||
// We don't need to wory about the scale or sign - the analog hardware is
|
||||
// a 10-bit value, so 0-1023. Just scale this to our terminal
|
||||
|
||||
printf ("%*s\n", (inputValue * cols) / 1023, "*") ;
|
||||
delay (2) ;
|
||||
}
|
||||
|
||||
#ifdef DO_TIMING
|
||||
now = millis () ;
|
||||
printf ("%4d mS, %9.7f S/sample", now - then, ((double)(now - then) / 1000.0) / (double)B_SIZE) ;
|
||||
printf (" -> %9.4f samples/sec \n", 1 / (((double)(now - then) / 1000.0) / (double)B_SIZE)) ;
|
||||
#endif
|
||||
}
|
||||
|
||||
return 0 ;
|
|
@ -0,0 +1,60 @@
|
|||
/*
|
||||
* record.c:
|
||||
* Record some audio via the Gertboard
|
||||
*
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <sys/time.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <gertboard.h>
|
||||
|
||||
#define B_SIZE 40000
|
||||
|
||||
int main ()
|
||||
{
|
||||
int i ;
|
||||
struct timeval tStart, tEnd, tTaken ;
|
||||
unsigned char buffer [B_SIZE] ;
|
||||
|
||||
printf ("\n") ;
|
||||
printf ("Gertboard demo: Recorder\n") ;
|
||||
printf ("========================\n") ;
|
||||
|
||||
// Always initialise wiringPi. Use wiringPiSys() if you don't need
|
||||
// (or want) to run as root
|
||||
|
||||
wiringPiSetupSys () ;
|
||||
|
||||
// Initialise the Gertboard analog hardware at pin 100
|
||||
|
||||
gertboardAnalogSetup (100) ;
|
||||
|
||||
gettimeofday (&tStart, NULL) ;
|
||||
|
||||
for (i = 0 ; i < B_SIZE ; ++i)
|
||||
buffer [i] = analogRead (100) >> 2 ;
|
||||
|
||||
gettimeofday (&tEnd, NULL) ;
|
||||
|
||||
timersub (&tEnd, &tStart, &tTaken) ;
|
||||
|
||||
printf ("Time taken for %d reads: %ld.%ld\n", B_SIZE, tTaken.tv_sec, tTaken.tv_usec) ;
|
||||
|
||||
gettimeofday (&tStart, NULL) ;
|
||||
|
||||
for (i = 0 ; i < B_SIZE ; ++i)
|
||||
analogWrite (100, buffer [i]) ;
|
||||
|
||||
gettimeofday (&tEnd, NULL) ;
|
||||
|
||||
timersub (&tEnd, &tStart, &tTaken) ;
|
||||
|
||||
printf ("Time taken for %d writes: %ld.%ld\n", B_SIZE, tTaken.tv_sec, tTaken.tv_usec) ;
|
||||
|
||||
return 0 ;
|
||||
}
|
||||
|
|
@ -0,0 +1,78 @@
|
|||
/*
|
||||
* temperature.c:
|
||||
* Demonstrate use of the Gertboard A to D converter to make
|
||||
* a simple thermometer using the LM35.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <gertboard.h>
|
||||
|
||||
int main ()
|
||||
{
|
||||
int x1, x2 ;
|
||||
double v1, v2 ;
|
||||
|
||||
printf ("\n") ;
|
||||
printf ("Gertboard demo: Simple Thermemeter\n") ;
|
||||
printf ("==================================\n") ;
|
||||
|
||||
// Always initialise wiringPi. Use wiringPiSys() if you don't need
|
||||
// (or want) to run as root
|
||||
|
||||
wiringPiSetupSys () ;
|
||||
|
||||
// Initialise the Gertboard analog hardware at pin 100
|
||||
|
||||
gertboardAnalogSetup (100) ;
|
||||
|
||||
printf ("\n") ;
|
||||
printf ("| Channel 0 | Channel 1 | Temperature 1 | Temperature 2 |\n") ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
|
||||
// Read the 2 channels:
|
||||
|
||||
x1 = analogRead (100) ;
|
||||
x2 = analogRead (101) ;
|
||||
|
||||
// Convert to a voltage:
|
||||
|
||||
v1 = (double)x1 / 1023.0 * 3.3 ;
|
||||
v2 = (double)x2 / 1023.0 * 3.3 ;
|
||||
|
||||
// Print
|
||||
|
||||
printf ("| %6.3f | %6.3f |", v1, v2) ;
|
||||
|
||||
// Print Temperature of both channels by converting the LM35 reading
|
||||
// to a temperature. Fortunately these are easy: 0.01 volts per C.
|
||||
|
||||
printf (" %4.1f | %4.1f |\r", v1 * 100.0, v2 * 100.0) ;
|
||||
fflush (stdout) ;
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
||||
|
|
@ -0,0 +1,73 @@
|
|||
/*
|
||||
* voltmeter.c:
|
||||
* Demonstrate use of the Gertboard A to D converter to make
|
||||
* a simple voltmeter.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <gertboard.h>
|
||||
|
||||
int main ()
|
||||
{
|
||||
int x1, x2 ;
|
||||
double v1, v2 ;
|
||||
|
||||
printf ("\n") ;
|
||||
printf ("Gertboard demo: Simple Voltmeters\n") ;
|
||||
printf ("=================================\n") ;
|
||||
|
||||
// Always initialise wiringPi. Use wiringPiSys() if you don't need
|
||||
// (or want) to run as root
|
||||
|
||||
wiringPiSetupSys () ;
|
||||
|
||||
// Initialise the Gertboard analog hardware at pin 100
|
||||
|
||||
gertboardAnalogSetup (100) ;
|
||||
|
||||
printf ("\n") ;
|
||||
printf ("| Channel 0 | Channel 1 |\n") ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
|
||||
// Read the 2 channels:
|
||||
|
||||
x1 = analogRead (100) ;
|
||||
x2 = analogRead (101) ;
|
||||
|
||||
// Convert to a voltage:
|
||||
|
||||
v1 = (double)x1 / 1023.0 * 3.3 ;
|
||||
v2 = (double)x2 / 1023.0 * 3.3 ;
|
||||
|
||||
// Print
|
||||
|
||||
printf ("| %6.3f | %6.3f |\r", v1, v2) ;
|
||||
fflush (stdout) ;
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
||||
|
|
@ -0,0 +1,152 @@
|
|||
/*
|
||||
* vumeter.c:
|
||||
* Simple VU meter
|
||||
*
|
||||
* Heres the theory:
|
||||
* We will sample at 4000 samples/sec and put the data into a
|
||||
* low-pass filter with a depth of 1000 samples. This will give
|
||||
* us 1/4 a second of lag on the signal, but I think it might
|
||||
* produce a more pleasing output.
|
||||
*
|
||||
* The input of the microphone should be at mid-pont with no
|
||||
* sound input, but we might have to sample that too, to get
|
||||
* our reference zero...
|
||||
*
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/time.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <gertboard.h>
|
||||
|
||||
#ifndef TRUE
|
||||
#define TRUE (1==1)
|
||||
#define FALSE (!TRUE)
|
||||
#endif
|
||||
|
||||
#define B_SIZE 1000
|
||||
#define S_SIZE 128
|
||||
|
||||
static int buffer [B_SIZE] ;
|
||||
static int bPtr = 0 ;
|
||||
|
||||
/*
|
||||
* ledPercent:
|
||||
* Output the given value as a percentage on the LEDs
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void ledPercent (int percent)
|
||||
{
|
||||
unsigned int output = 0 ;
|
||||
|
||||
if (percent > 11) output |= 0x01 ;
|
||||
if (percent > 22) output |= 0x02 ;
|
||||
if (percent > 33) output |= 0x04 ;
|
||||
if (percent > 44) output |= 0x08 ;
|
||||
if (percent > 55) output |= 0x10 ;
|
||||
if (percent > 66) output |= 0x20 ;
|
||||
if (percent > 77) output |= 0x40 ;
|
||||
if (percent > 88) output |= 0x80 ;
|
||||
|
||||
digitalWriteByte (output) ;
|
||||
}
|
||||
|
||||
static unsigned int tPeriod, tNextSampleTime ;
|
||||
|
||||
/*
|
||||
* sample:
|
||||
* Get a sample from the Gertboard. If not enough time has elapsed
|
||||
* since the last sample, then wait...
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void sample (void)
|
||||
{
|
||||
unsigned int tFuture ;
|
||||
|
||||
// Calculate the future sample time
|
||||
|
||||
tFuture = tPeriod + tNextSampleTime ;
|
||||
|
||||
// Wait until the next sample time
|
||||
|
||||
while (micros () < tNextSampleTime)
|
||||
;
|
||||
|
||||
buffer [bPtr] = gertboardAnalogRead (0) ;
|
||||
|
||||
tNextSampleTime = tFuture ;
|
||||
}
|
||||
|
||||
|
||||
int main ()
|
||||
{
|
||||
int quietLevel, min, max ;
|
||||
int i, sum ;
|
||||
unsigned int tStart, tEnd ;
|
||||
|
||||
printf ("\n") ;
|
||||
printf ("Gertboard demo: VU Meter\n") ;
|
||||
printf ("========================\n") ;
|
||||
|
||||
wiringPiSetup () ;
|
||||
gertboardSPISetup () ;
|
||||
|
||||
ledPercent (0) ;
|
||||
for (i = 0 ; i < 8 ; ++i)
|
||||
pinMode (i, OUTPUT) ;
|
||||
|
||||
for (bPtr = 0 ; bPtr < B_SIZE ; ++bPtr)
|
||||
buffer [bPtr] = 99 ;
|
||||
|
||||
tPeriod = 1000000 / 1000 ;
|
||||
|
||||
printf ("Shhhh.... ") ; fflush (stdout) ;
|
||||
delay (1000) ;
|
||||
printf ("Sampling quiet... ") ; fflush (stdout) ;
|
||||
|
||||
tStart = micros () ;
|
||||
|
||||
tNextSampleTime = micros () ;
|
||||
for (bPtr = 0 ; bPtr < B_SIZE ; ++bPtr)
|
||||
sample () ;
|
||||
|
||||
tEnd = micros () ;
|
||||
|
||||
quietLevel = 0 ;
|
||||
max = 0 ;
|
||||
min = 1024 ;
|
||||
for (i = 0 ; i < B_SIZE ; ++i)
|
||||
{
|
||||
quietLevel += buffer [i] ;
|
||||
if (buffer [i] > max) max = buffer [i] ;
|
||||
if (buffer [i] < min) min = buffer [i] ;
|
||||
}
|
||||
quietLevel /= B_SIZE ;
|
||||
|
||||
printf ("Done. Quiet level is: %d [%d:%d] [%d:%d]\n", quietLevel, min, max, quietLevel - min, max - quietLevel) ;
|
||||
|
||||
printf ("Time taken for %d reads: %duS\n", B_SIZE, tEnd - tStart) ;
|
||||
|
||||
for (bPtr = 0 ;;)
|
||||
{
|
||||
sample () ;
|
||||
sum = 0 ;
|
||||
for (i = 0 ; i < S_SIZE ; ++i)
|
||||
sum += buffer [i] ;
|
||||
sum /= S_SIZE ;
|
||||
sum = abs (quietLevel - sum) ;
|
||||
sum = (sum * 1000) / quietLevel ;
|
||||
ledPercent (sum) ;
|
||||
if (++bPtr > S_SIZE)
|
||||
bPtr = 0 ;
|
||||
}
|
||||
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -30,15 +30,19 @@ INCLUDE = -I/usr/local/include
|
|||
CFLAGS = $(DEBUG) -Wall $(INCLUDE) -Winline -pipe
|
||||
|
||||
LDFLAGS = -L/usr/local/lib
|
||||
LDLIBS = -lwiringPi -lpthread -lm
|
||||
LDLIBS = -lwiringPi -lwiringPiDev -lpthread -lm
|
||||
|
||||
# Should not alter anything below this line
|
||||
###############################################################################
|
||||
|
||||
SRC = blink.c test1.c test2.c speed.c lcd.c wfi.c isr.c isr-osc.c \
|
||||
piface.c gertboard.c nes.c \
|
||||
pwm.c tone.c servo.c \
|
||||
delayTest.c serialRead.c serialTest.c okLed.c
|
||||
SRC = blink.c blink8.c blink12.c \
|
||||
pwm.c \
|
||||
speed.c wfi.c isr.c isr-osc.c \
|
||||
lcd.c clock.c \
|
||||
nes.c \
|
||||
softPwm.c softTone.c \
|
||||
delayTest.c serialRead.c serialTest.c okLed.c ds1302.c \
|
||||
rht03.c
|
||||
|
||||
OBJ = $(SRC:.c=.o)
|
||||
|
||||
|
@ -55,13 +59,13 @@ blink: blink.o
|
|||
@echo [link]
|
||||
@$(CC) -o $@ blink.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
test1: test1.o
|
||||
blink8: blink8.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ test1.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
test2: test2.o
|
||||
@$(CC) -o $@ blink8.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
blink12: blink12.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ test2.o $(LDFLAGS) $(LDLIBS)
|
||||
@$(CC) -o $@ blink12.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
speed: speed.o
|
||||
@echo [link]
|
||||
|
@ -71,6 +75,10 @@ lcd: lcd.o
|
|||
@echo [link]
|
||||
@$(CC) -o $@ lcd.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
clock: clock.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ clock.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
wfi: wfi.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ wfi.o $(LDFLAGS) $(LDLIBS)
|
||||
|
@ -83,22 +91,26 @@ isr-osc: isr-osc.o
|
|||
@echo [link]
|
||||
@$(CC) -o $@ isr-osc.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
piface: piface.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ piface.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
gertboard: gertboard.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ gertboard.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
nes: nes.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ nes.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
rht03: rht03.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ rht03.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
pwm: pwm.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ pwm.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
softPwm: softPwm.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ softPwm.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
softTone: softTone.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ softTone.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
delayTest: delayTest.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ delayTest.o $(LDFLAGS) $(LDLIBS)
|
||||
|
@ -119,9 +131,9 @@ tone: tone.o
|
|||
@echo [link]
|
||||
@$(CC) -o $@ tone.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
servo: servo.o
|
||||
ds1302: ds1302.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ servo.o $(LDFLAGS) $(LDLIBS)
|
||||
@$(CC) -o $@ ds1302.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
|
||||
.c.o:
|
||||
|
@ -129,7 +141,8 @@ servo: servo.o
|
|||
@$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
clean:
|
||||
rm -f $(OBJ) *~ core tags $(BINS)
|
||||
@echo "[Clean]"
|
||||
@rm -f $(OBJ) *~ core tags $(BINS)
|
||||
|
||||
tags: $(SRC)
|
||||
@echo [ctags]
|
||||
|
|
|
@ -0,0 +1,85 @@
|
|||
#
|
||||
# Makefile:
|
||||
# wiringPi - Wiring Compatable library for the Raspberry Pi
|
||||
# https://projects.drogon.net/wiring-pi
|
||||
#
|
||||
# Copyright (c) 2012 Gordon Henderson
|
||||
#################################################################################
|
||||
# This file is part of wiringPi:
|
||||
# Wiring Compatable library for the Raspberry Pi
|
||||
#
|
||||
# wiringPi is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU Lesser General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# wiringPi is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU Lesser General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU Lesser General Public License
|
||||
# along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
#################################################################################
|
||||
|
||||
|
||||
#DEBUG = -g -O0
|
||||
DEBUG = -O3
|
||||
CC = gcc
|
||||
INCLUDE = -I/usr/local/include
|
||||
CFLAGS = $(DEBUG) -Wall $(INCLUDE) -Winline -pipe
|
||||
|
||||
LDFLAGS = -L/usr/local/lib
|
||||
LDLIBS = -lwiringPi -lwiringPiDev -lpthread -lm
|
||||
|
||||
# Should not alter anything below this line
|
||||
###############################################################################
|
||||
|
||||
SRC = blink.c buttons.c reaction.c ladder.c metro.c motor.c
|
||||
|
||||
OBJ = $(SRC:.c=.o)
|
||||
|
||||
BINS = $(SRC:.c=)
|
||||
|
||||
all: $(BINS)
|
||||
|
||||
blink: blink.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ blink.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
buttons: buttons.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ buttons.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
reaction: reaction.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ reaction.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
ladder: ladder.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ ladder.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
metro: metro.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ metro.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
motor: motor.o
|
||||
@echo [link]
|
||||
@$(CC) -o $@ motor.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
.c.o:
|
||||
@echo [CC] $<
|
||||
@$(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
clean:
|
||||
@echo "[Clean]"
|
||||
@rm -f $(OBJ) *~ core tags $(BINS)
|
||||
|
||||
tags: $(SRC)
|
||||
@echo [ctags]
|
||||
@ctags $(SRC)
|
||||
|
||||
depend:
|
||||
makedepend -Y $(SRC)
|
||||
|
||||
# DO NOT DELETE
|
|
@ -0,0 +1,59 @@
|
|||
/*
|
||||
* blink.c:
|
||||
* Simple "blink" test for the PiFace interface board.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <piFace.h>
|
||||
|
||||
// Use 200 as the pin-base for the PiFace board, and pick a pin
|
||||
// for the LED that's not connected to a relay
|
||||
|
||||
#define PIFACE 200
|
||||
#define LED (PIFACE+2)
|
||||
|
||||
int main (int argc, char *argv [])
|
||||
{
|
||||
printf ("Raspberry Pi PiFace Blink\n") ;
|
||||
printf ("=========================\n") ;
|
||||
|
||||
// Always initialise wiringPi. Use wiringPiSys() if you don't need
|
||||
// (or want) to run as root
|
||||
|
||||
wiringPiSetupSys () ;
|
||||
|
||||
// Setup the PiFace board
|
||||
|
||||
piFaceSetup (PIFACE) ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
digitalWrite (LED, HIGH) ; // On
|
||||
delay (500) ; // mS
|
||||
digitalWrite (LED, LOW) ; // Off
|
||||
delay (500) ;
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,103 @@
|
|||
/*
|
||||
* buttons.c:
|
||||
* Simple test for the PiFace interface board.
|
||||
*
|
||||
* Read the buttons and output the same to the LEDs
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <piFace.h>
|
||||
|
||||
int outputs [4] = { 0,0,0,0 } ;
|
||||
|
||||
// Use 200 as the pin-base for the PiFace board
|
||||
|
||||
#define PIFACE_BASE 200
|
||||
|
||||
|
||||
/*
|
||||
* scanButton:
|
||||
* Read the guiven button - if it's pressed, then flip the state
|
||||
* of the correspoinding output pin
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void scanButton (int button)
|
||||
{
|
||||
if (digitalRead (PIFACE_BASE + button) == LOW)
|
||||
{
|
||||
outputs [button] ^= 1 ;
|
||||
digitalWrite (PIFACE_BASE + button, outputs [button]) ;
|
||||
printf ("Button %d pushed - output now: %s\n",
|
||||
button, (outputs [button] == 0) ? "Off" : "On") ;
|
||||
}
|
||||
|
||||
while (digitalRead (PIFACE_BASE + button) == LOW)
|
||||
delay (1) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* start here
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int main (void)
|
||||
{
|
||||
int pin, button ;
|
||||
|
||||
printf ("Raspberry Pi wiringPi + PiFace test program\n") ;
|
||||
printf ("===========================================\n") ;
|
||||
printf ("\n") ;
|
||||
printf (
|
||||
"This program reads the buttons and uses them to toggle the first 4\n"
|
||||
"outputs. Push a button once to turn an output on, and push it again to\n"
|
||||
"turn it off again.\n\n") ;
|
||||
|
||||
// Always initialise wiringPi. Use wiringPiSys() if you don't need
|
||||
// (or want) to run as root
|
||||
|
||||
wiringPiSetupSys () ;
|
||||
|
||||
piFaceSetup (PIFACE_BASE) ;
|
||||
|
||||
// Enable internal pull-ups & start with all off
|
||||
|
||||
for (pin = 0 ; pin < 8 ; ++pin)
|
||||
{
|
||||
pullUpDnControl (PIFACE_BASE + pin, PUD_UP) ;
|
||||
digitalWrite (PIFACE_BASE + pin, 0) ;
|
||||
}
|
||||
|
||||
// Loop, scanning the buttons
|
||||
|
||||
for (;;)
|
||||
{
|
||||
for (button = 0 ; button < 4 ; ++button)
|
||||
scanButton (button) ;
|
||||
delay (5) ;
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,337 @@
|
|||
/*
|
||||
* ladder.c:
|
||||
*
|
||||
* Gordon Henderson, June 2012
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <math.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <piFace.h>
|
||||
|
||||
#ifndef TRUE
|
||||
# define TRUE (1==1)
|
||||
# define FALSE (1==2)
|
||||
#endif
|
||||
|
||||
#undef DEBUG
|
||||
|
||||
#define NUM_LEDS 8
|
||||
|
||||
|
||||
// Map the LEDs to the hardware pins
|
||||
// using PiFace pin numbers here
|
||||
|
||||
#define PIFACE 200
|
||||
|
||||
const int ledMap [NUM_LEDS] =
|
||||
{
|
||||
// 0, 1, 2, 3, 4, 5, 6, 7, 8
|
||||
200, 201, 202, 203, 204, 205, 206, 207
|
||||
} ;
|
||||
|
||||
|
||||
// Some constants for our circuit simulation
|
||||
|
||||
const double vBatt = 9.0 ; // Volts (ie. a PP3)
|
||||
const double capacitor = 0.001 ; // 1000uF
|
||||
const double rCharge = 2200.0 ; // ohms
|
||||
const double rDischarge = 68000.0 ; // ohms
|
||||
const double timeInc = 0.01 ; // Seconds
|
||||
|
||||
double vCharge, vCap, vCapLast ;
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* setup:
|
||||
* Program the GPIO correctly and initialise the lamps
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
void setup (void)
|
||||
{
|
||||
int i ;
|
||||
|
||||
wiringPiSetupSys () ;
|
||||
|
||||
if (piFaceSetup (200) == -1)
|
||||
exit (1) ;
|
||||
|
||||
// Enable internal pull-ups
|
||||
|
||||
for (i = 0 ; i < 8 ; ++i)
|
||||
pullUpDnControl (PIFACE + i, PUD_UP) ;
|
||||
|
||||
// Calculate the actual charging voltage - standard calculation of
|
||||
// vCharge = r2 / (r1 + r2) * vBatt
|
||||
//
|
||||
//
|
||||
// -----+--- vBatt
|
||||
// |
|
||||
// R1
|
||||
// |
|
||||
// +---+---- vCharge
|
||||
// | |
|
||||
// R2 C
|
||||
// | |
|
||||
// -----+---+-----
|
||||
|
||||
vCharge = rDischarge / (rCharge + rDischarge) * vBatt ;
|
||||
|
||||
// Start with no charge
|
||||
|
||||
vCap = vCapLast = 0.0 ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* introLeds
|
||||
* Put a little pattern on the LEDs to start with
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void introLeds (void)
|
||||
{
|
||||
int i, j ;
|
||||
|
||||
|
||||
printf ("Pi Ladder\n") ;
|
||||
printf ("=========\n\n") ;
|
||||
printf (" vBatt: %6.2f volts\n", vBatt) ;
|
||||
printf (" rCharge: %6.0f ohms\n", rCharge) ;
|
||||
printf (" rDischarge: %6.0f ohms\n", rDischarge) ;
|
||||
printf (" vCharge: %6.2f volts\n", vCharge) ;
|
||||
printf (" capacitor: %6.0f uF\n", capacitor * 1000.0) ;
|
||||
|
||||
// Flash 3 times:
|
||||
|
||||
for (j = 0 ; j < 3 ; ++j)
|
||||
{
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
digitalWrite (ledMap [i], 1) ;
|
||||
delay (500) ;
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
digitalWrite (ledMap [i], 0) ;
|
||||
delay (100) ;
|
||||
}
|
||||
|
||||
// All On
|
||||
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
digitalWrite (ledMap [i], 1) ;
|
||||
delay (500) ;
|
||||
|
||||
// Countdown...
|
||||
|
||||
for (i = NUM_LEDS - 1 ; i >= 0 ; --i)
|
||||
{
|
||||
digitalWrite (ledMap [i], 0) ;
|
||||
delay (100) ;
|
||||
}
|
||||
delay (500) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* winningLeds
|
||||
* Put a little pattern on the LEDs to start with
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void winningLeds (void)
|
||||
{
|
||||
int i, j ;
|
||||
|
||||
// Flash 3 times:
|
||||
|
||||
for (j = 0 ; j < 3 ; ++j)
|
||||
{
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
digitalWrite (ledMap [i], 1) ;
|
||||
delay (500) ;
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
digitalWrite (ledMap [i], 0) ;
|
||||
delay (100) ;
|
||||
}
|
||||
|
||||
// All On
|
||||
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
digitalWrite (ledMap [i], 1) ;
|
||||
delay (500) ;
|
||||
|
||||
// Countup...
|
||||
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
{
|
||||
digitalWrite (ledMap [i], 0) ;
|
||||
delay (100) ;
|
||||
}
|
||||
delay (500) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* chargeCapacitor: dischargeCapacitor:
|
||||
* Add or remove charge to the capacitor.
|
||||
* Standard capacitor formulae.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void chargeCapacitor (void)
|
||||
{
|
||||
vCap = (vCapLast - vCharge) *
|
||||
exp (- timeInc / (rCharge * capacitor)) + vCharge ;
|
||||
|
||||
#ifdef DEBUG
|
||||
printf ("+vCap: %7.4f\n", vCap) ;
|
||||
#endif
|
||||
|
||||
vCapLast = vCap ;
|
||||
}
|
||||
|
||||
void dischargeCapacitor (void)
|
||||
{
|
||||
vCap = vCapLast *
|
||||
exp (- timeInc / (rDischarge * capacitor)) ;
|
||||
|
||||
#ifdef DEBUG
|
||||
printf ("-vCap: %7.4f\n", vCap) ;
|
||||
#endif
|
||||
|
||||
vCapLast = vCap ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* ledBargraph:
|
||||
* Output the supplied number as a bargraph on the LEDs
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void ledBargraph (double value, int topLedOn)
|
||||
{
|
||||
int topLed = (int)floor (value / vCharge * (double)NUM_LEDS) + 1 ;
|
||||
int i ;
|
||||
|
||||
if (topLed > NUM_LEDS)
|
||||
topLed = NUM_LEDS ;
|
||||
|
||||
if (!topLedOn)
|
||||
--topLed ;
|
||||
|
||||
for (i = 0 ; i < topLed ; ++i)
|
||||
digitalWrite (ledMap [i], 1) ;
|
||||
|
||||
for (i = topLed ; i < NUM_LEDS ; ++i)
|
||||
digitalWrite (ledMap [i], 0) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* ledOnAction:
|
||||
* Make sure the leading LED is on and check the button
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void ledOnAction (void)
|
||||
{
|
||||
if (digitalRead (PIFACE) == LOW)
|
||||
{
|
||||
chargeCapacitor () ;
|
||||
ledBargraph (vCap, TRUE) ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* ledOffAction:
|
||||
* Make sure the leading LED is off and check the button
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void ledOffAction (void)
|
||||
{
|
||||
dischargeCapacitor () ;
|
||||
|
||||
// Are we still pushing the button?
|
||||
|
||||
if (digitalRead (PIFACE) == LOW)
|
||||
{
|
||||
vCap = vCapLast = 0.0 ;
|
||||
ledBargraph (vCap, FALSE) ;
|
||||
|
||||
// Wait until we release the button
|
||||
|
||||
while (digitalRead (PIFACE) == LOW)
|
||||
delay (10) ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
***********************************************************************
|
||||
* The main program
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
int main (void)
|
||||
{
|
||||
unsigned int then, ledOnTime, ledOffTime ;
|
||||
unsigned int ourDelay = (int)(1000.0 * timeInc) ;
|
||||
|
||||
setup () ;
|
||||
introLeds () ;
|
||||
|
||||
// Setup the LED times - TODO reduce the ON time as the game progresses
|
||||
|
||||
ledOnTime = 1000 ;
|
||||
ledOffTime = 1000 ;
|
||||
|
||||
// This is our Gate/Squarewave loop
|
||||
|
||||
for (;;)
|
||||
{
|
||||
|
||||
// LED ON:
|
||||
|
||||
(void)ledBargraph (vCap, TRUE) ;
|
||||
then = millis () + ledOnTime ;
|
||||
while (millis () < then)
|
||||
{
|
||||
ledOnAction () ;
|
||||
delay (ourDelay) ;
|
||||
}
|
||||
|
||||
// Have we won yet?
|
||||
// We need vCap to be in the top NUM_LEDS of the vCharge
|
||||
|
||||
if (vCap > ((double)(NUM_LEDS - 1) / (double)NUM_LEDS * vCharge)) // Woo hoo!
|
||||
{
|
||||
winningLeds () ;
|
||||
while (digitalRead (PIFACE) == HIGH)
|
||||
delay (10) ;
|
||||
while (digitalRead (PIFACE) == LOW)
|
||||
delay (10) ;
|
||||
vCap = vCapLast = 0.0 ;
|
||||
}
|
||||
|
||||
// LED OFF:
|
||||
|
||||
(void)ledBargraph (vCap, FALSE) ;
|
||||
then = millis () + ledOffTime ;
|
||||
while (millis () < then)
|
||||
{
|
||||
ledOffAction () ;
|
||||
delay (ourDelay) ;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,111 @@
|
|||
/*
|
||||
* metronome.c:
|
||||
* Simple test for the PiFace interface board.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <piFace.h>
|
||||
|
||||
#define PIFACE 200
|
||||
|
||||
/*
|
||||
* middleA:
|
||||
* Play middle A (on the relays - yea!)
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void middleA (void)
|
||||
{
|
||||
unsigned int next ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
next = micros () + 1136 ;
|
||||
digitalWrite (PIFACE + 0, 0) ;
|
||||
digitalWrite (PIFACE + 1, 0) ;
|
||||
while (micros () < next)
|
||||
delayMicroseconds (1) ;
|
||||
|
||||
next = micros () + 1137 ;
|
||||
digitalWrite (PIFACE + 0, 1) ;
|
||||
digitalWrite (PIFACE + 1, 1) ;
|
||||
while (micros () < next)
|
||||
delayMicroseconds (1) ;
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int main (int argc, char *argv [])
|
||||
{
|
||||
int bpm, msPerBeat, state = 0 ;
|
||||
unsigned int end ;
|
||||
|
||||
printf ("Raspberry Pi PiFace Metronome\n") ;
|
||||
printf ("=============================\n") ;
|
||||
|
||||
piHiPri (50) ;
|
||||
|
||||
wiringPiSetupSys () ; // Needed for timing functions
|
||||
piFaceSetup (PIFACE) ;
|
||||
|
||||
if (argc != 2)
|
||||
{
|
||||
printf ("Usage: %s <beates per minute>\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
if (strcmp (argv [1], "a") == 0)
|
||||
middleA () ;
|
||||
|
||||
bpm = atoi (argv [1]) ;
|
||||
|
||||
if ((bpm < 40) || (bpm > 208))
|
||||
{
|
||||
printf ("%s range is 40 through 208 beats per minute\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
msPerBeat = 60000 / bpm ;
|
||||
|
||||
// Main loop:
|
||||
// Put some random LED pairs up for a few seconds, then blank ...
|
||||
|
||||
for (;;)
|
||||
{
|
||||
end = millis () + msPerBeat ;
|
||||
|
||||
digitalWrite (PIFACE + 0, state) ;
|
||||
digitalWrite (PIFACE + 1, state) ;
|
||||
|
||||
while (millis () < end)
|
||||
delayMicroseconds (500) ;
|
||||
|
||||
state ^= 1 ;
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,120 @@
|
|||
/*
|
||||
* motor.c:
|
||||
* Use the PiFace board to demonstrate an H bridge
|
||||
* circuit via the 2 relays.
|
||||
* Then add on an external transsitor to help with PWM.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <piFace.h>
|
||||
#include <softPwm.h>
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
|
||||
int outputs [2] = { 0,0 } ;
|
||||
|
||||
#define PIFACE_BASE 200
|
||||
#define PWM_OUT_PIN 204
|
||||
#define PWM_UP 202
|
||||
#define PWM_DOWN 203
|
||||
|
||||
void scanButton (int button)
|
||||
{
|
||||
if (digitalRead (PIFACE_BASE + button) == LOW)
|
||||
{
|
||||
outputs [button] ^= 1 ;
|
||||
digitalWrite (PIFACE_BASE + button, outputs [button]) ;
|
||||
printf ("Button %d pushed - output now: %s\n",
|
||||
button, (outputs [button] == 0) ? "Off" : "On") ;
|
||||
}
|
||||
|
||||
while (digitalRead (PIFACE_BASE + button) == LOW)
|
||||
delay (1) ;
|
||||
}
|
||||
|
||||
|
||||
int main (void)
|
||||
{
|
||||
int pin, button ;
|
||||
int pwmValue = 0 ;
|
||||
|
||||
printf ("Raspberry Pi PiFace - Motor control\n") ;
|
||||
printf ("==================================\n") ;
|
||||
printf ("\n") ;
|
||||
printf (
|
||||
"This program is designed to be used with a motor connected to the relays\n"
|
||||
"in an H-Bridge type configuration with optional speeed control via PWM.\n"
|
||||
"\n"
|
||||
"Use the leftmost buttons to turn each relay on and off, and the rigthmost\n"
|
||||
"buttons to increase ot decrease the PWM output on the control pin (pin\n"
|
||||
"4)\n\n") ;
|
||||
|
||||
wiringPiSetup () ;
|
||||
piFaceSetup (PIFACE_BASE) ;
|
||||
softPwmCreate (PWM_OUT_PIN, 100, 100) ;
|
||||
|
||||
// Enable internal pull-ups & start with all off
|
||||
|
||||
for (pin = 0 ; pin < 8 ; ++pin)
|
||||
{
|
||||
pullUpDnControl (PIFACE_BASE + pin, PUD_UP) ;
|
||||
digitalWrite (PIFACE_BASE + pin, 0) ;
|
||||
}
|
||||
|
||||
for (;;)
|
||||
{
|
||||
for (button = 0 ; button < 2 ; ++button)
|
||||
scanButton (button) ;
|
||||
|
||||
if (digitalRead (PWM_UP) == LOW)
|
||||
{
|
||||
pwmValue += 10 ;
|
||||
if (pwmValue > 100)
|
||||
pwmValue = 100 ;
|
||||
|
||||
softPwmWrite (PWM_OUT_PIN, pwmValue) ;
|
||||
printf ("PWM -> %3d\n", pwmValue) ;
|
||||
|
||||
while (digitalRead (PWM_UP) == LOW)
|
||||
delay (5) ;
|
||||
}
|
||||
|
||||
if (digitalRead (PWM_DOWN) == LOW)
|
||||
{
|
||||
pwmValue -= 10 ;
|
||||
if (pwmValue < 0)
|
||||
pwmValue = 0 ;
|
||||
|
||||
softPwmWrite (PWM_OUT_PIN, pwmValue) ;
|
||||
printf ("PWM -> %3d\n", pwmValue) ;
|
||||
|
||||
while (digitalRead (PWM_DOWN) == LOW)
|
||||
delay (5) ;
|
||||
}
|
||||
|
||||
delay (5) ;
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,194 @@
|
|||
/*
|
||||
* reaction.c:
|
||||
* Simple test for the PiFace interface board.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <piFace.h>
|
||||
|
||||
|
||||
int outputs [4] = { 0,0,0,0 } ;
|
||||
|
||||
#define PIFACE 200
|
||||
|
||||
/*
|
||||
* light:
|
||||
* Light up the given LED - actually lights up a pair
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void light (int led, int value)
|
||||
{
|
||||
led *= 2 ;
|
||||
digitalWrite (PIFACE + led + 0, value) ;
|
||||
digitalWrite (PIFACE + led + 1, value) ;
|
||||
}
|
||||
|
||||
/*
|
||||
* lightAll:
|
||||
* All On or Off
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void lightAll (int onoff)
|
||||
{
|
||||
light (0, onoff) ;
|
||||
light (1, onoff) ;
|
||||
light (2, onoff) ;
|
||||
light (3, onoff) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* waitForNoButtons:
|
||||
* Wait for all buttons to be released
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void waitForNoButtons (void)
|
||||
{
|
||||
int i, button ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
button = 0 ;
|
||||
for (i = 0 ; i < 4 ; ++i)
|
||||
button += digitalRead (PIFACE + i) ;
|
||||
|
||||
if (button == 4)
|
||||
break ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void scanButton (int button)
|
||||
{
|
||||
if (digitalRead (PIFACE + button) == LOW)
|
||||
{
|
||||
outputs [button] ^= 1 ;
|
||||
digitalWrite (PIFACE + button, outputs [button]) ;
|
||||
}
|
||||
|
||||
while (digitalRead (PIFACE + button) == LOW)
|
||||
delay (1) ;
|
||||
}
|
||||
|
||||
|
||||
int main (void)
|
||||
{
|
||||
int i, j ;
|
||||
int led, button ;
|
||||
unsigned int start, stop ;
|
||||
|
||||
printf ("Raspberry Pi PiFace Reaction Timer\n") ;
|
||||
printf ("==================================\n") ;
|
||||
|
||||
if (piFaceSetup (PIFACE) == -1)
|
||||
exit (1) ;
|
||||
|
||||
// Enable internal pull-ups
|
||||
|
||||
for (i = 0 ; i < 8 ; ++i)
|
||||
pullUpDnControl (PIFACE + i, PUD_UP) ;
|
||||
|
||||
|
||||
// Main game loop:
|
||||
// Put some random LED pairs up for a few seconds, then blank ...
|
||||
|
||||
for (;;)
|
||||
{
|
||||
printf ("Press any button to start ... \n") ; fflush (stdout) ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
led = rand () % 4 ;
|
||||
light (led, 1) ;
|
||||
delay (10) ;
|
||||
light (led, 0) ;
|
||||
|
||||
button = 0 ;
|
||||
for (j = 0 ; j < 4 ; ++j)
|
||||
button += digitalRead (PIFACE + j) ;
|
||||
|
||||
if (button != 4)
|
||||
break ;
|
||||
}
|
||||
|
||||
waitForNoButtons () ;
|
||||
|
||||
printf ("Wait for it ... ") ; fflush (stdout) ;
|
||||
|
||||
led = rand () % 4 ;
|
||||
delay (rand () % 500 + 1000) ;
|
||||
light (led, 1) ;
|
||||
|
||||
start = millis () ;
|
||||
for (button = -1 ; button == -1 ; )
|
||||
{
|
||||
for (j = 0 ; j < 4 ; ++j)
|
||||
if (digitalRead (PIFACE + j) == 0) // Pushed
|
||||
{
|
||||
button = j ;
|
||||
break ;
|
||||
}
|
||||
}
|
||||
stop = millis () ;
|
||||
button = 3 - button ; // Correct for the buttons/LEDs reversed
|
||||
|
||||
light (led, 0) ;
|
||||
|
||||
waitForNoButtons () ;
|
||||
|
||||
light (led, 1) ;
|
||||
|
||||
if (button == led)
|
||||
{
|
||||
printf ("You got it in %3d mS\n", stop - start) ;
|
||||
}
|
||||
else
|
||||
{
|
||||
printf ("Missed: You pushed %d - LED was %d\n", button, led) ;
|
||||
for (;;)
|
||||
{
|
||||
light (button, 1) ;
|
||||
delay (100) ;
|
||||
light (button, 0) ;
|
||||
delay (100) ;
|
||||
i = 0 ;
|
||||
for (j = 0 ; j < 4 ; ++j)
|
||||
i += digitalRead (PIFACE + j) ;
|
||||
if (i != 4)
|
||||
break ;
|
||||
}
|
||||
|
||||
waitForNoButtons () ;
|
||||
}
|
||||
light (led, 0) ;
|
||||
delay (4000) ;
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -34,16 +34,14 @@ int main (void)
|
|||
{
|
||||
printf ("Raspberry Pi blink\n") ;
|
||||
|
||||
if (wiringPiSetup () == -1)
|
||||
return 1 ;
|
||||
|
||||
wiringPiSetup () ;
|
||||
pinMode (LED, OUTPUT) ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
digitalWrite (LED, 1) ; // On
|
||||
digitalWrite (LED, HIGH) ; // On
|
||||
delay (500) ; // mS
|
||||
digitalWrite (LED, 0) ; // Off
|
||||
digitalWrite (LED, LOW) ; // Off
|
||||
delay (500) ;
|
||||
}
|
||||
return 0 ;
|
||||
|
|
|
@ -1,8 +1,7 @@
|
|||
/*
|
||||
* test1.c:
|
||||
* Simple test program to test the wiringPi functions
|
||||
* This is a sequencer to make a patter appear on 8 LEDs
|
||||
* connected to the GPIO pins.
|
||||
* blink12.c:
|
||||
* Simple sequence over the first 12 GPIO pins - LEDs
|
||||
* Aimed at the Gertboard, but it's fairly generic.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
|
@ -24,17 +23,13 @@
|
|||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <wiringPi.h>
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
|
||||
// Simple sequencer data
|
||||
// Triplets of LED, On/Off and delay
|
||||
|
||||
uint8_t data [] =
|
||||
int data [] =
|
||||
{
|
||||
0, 1, 1,
|
||||
1, 1, 1,
|
||||
|
@ -44,15 +39,23 @@ uint8_t data [] =
|
|||
3, 0, 0, 5, 1, 1,
|
||||
4, 0, 0, 6, 1, 1,
|
||||
5, 0, 0, 7, 1, 1,
|
||||
6, 0, 1,
|
||||
7, 0, 1,
|
||||
6, 0, 0, 11, 1, 1,
|
||||
7, 0, 0, 10, 1, 1,
|
||||
11, 0, 0, 13, 1, 1,
|
||||
10, 0, 0, 12, 1, 1,
|
||||
13, 0, 1,
|
||||
12, 0, 1,
|
||||
|
||||
0, 0, 1, // Extra delay
|
||||
|
||||
// Back again
|
||||
|
||||
7, 1, 1,
|
||||
6, 1, 1,
|
||||
12, 1, 1,
|
||||
13, 1, 1,
|
||||
12, 0, 0, 10, 1, 1,
|
||||
13, 0, 0, 11, 1, 1,
|
||||
10, 0, 0, 7, 1, 1,
|
||||
11, 0, 0, 6, 1, 1,
|
||||
7, 0, 0, 5, 1, 1,
|
||||
6, 0, 0, 4, 1, 1,
|
||||
5, 0, 0, 3, 1, 1,
|
||||
|
@ -64,7 +67,7 @@ uint8_t data [] =
|
|||
|
||||
0, 0, 1, // Extra delay
|
||||
|
||||
9, 9, 9, // End marker
|
||||
0, 9, 0, // End marker
|
||||
|
||||
} ;
|
||||
|
||||
|
@ -75,16 +78,17 @@ int main (void)
|
|||
int dataPtr ;
|
||||
int l, s, d ;
|
||||
|
||||
printf ("Raspberry Pi wiringPi test program\n") ;
|
||||
printf ("Raspberry Pi - 12-LED Sequence\n") ;
|
||||
printf ("==============================\n") ;
|
||||
printf ("\n") ;
|
||||
printf ("Connect LEDs up to the first 8 GPIO pins, then pins 11, 10, 13, 12 in\n") ;
|
||||
printf (" that order, then sit back and watch the show!\n") ;
|
||||
|
||||
if (wiringPiSetup () == -1)
|
||||
exit (1) ;
|
||||
wiringPiSetup () ;
|
||||
|
||||
for (pin = 0 ; pin < 8 ; ++pin)
|
||||
for (pin = 0 ; pin < 14 ; ++pin)
|
||||
pinMode (pin, OUTPUT) ;
|
||||
|
||||
pinMode (8, INPUT) ; // Pin 8 SDA0 - Has on-board 2k2 pull-up resistor
|
||||
|
||||
dataPtr = 0 ;
|
||||
|
||||
for (;;)
|
||||
|
@ -93,18 +97,14 @@ int main (void)
|
|||
s = data [dataPtr++] ; // State
|
||||
d = data [dataPtr++] ; // Duration (10ths)
|
||||
|
||||
if ((l + s + d) == 27)
|
||||
if (s == 9) // 9 -> End Marker
|
||||
{
|
||||
dataPtr = 0 ;
|
||||
continue ;
|
||||
}
|
||||
|
||||
digitalWrite (l, s) ;
|
||||
|
||||
if (digitalRead (8) == 0) // Pressed as our switch shorts to ground
|
||||
delay (d * 10) ; // Faster!
|
||||
else
|
||||
delay (d * 100) ;
|
||||
delay (d * 100) ;
|
||||
}
|
||||
|
||||
return 0 ;
|
|
@ -1,6 +1,7 @@
|
|||
/*
|
||||
* test2.c:
|
||||
* This tests the hardware PWM channel.
|
||||
* blink8.c:
|
||||
* Simple sequence over the first 8 GPIO pins - LEDs
|
||||
* Aimed at the Gertboard, but it's fairly generic.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
|
@ -22,37 +23,35 @@
|
|||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <wiringPi.h>
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
#include <wiringPi.h>
|
||||
|
||||
int main (void)
|
||||
{
|
||||
int bright ;
|
||||
int i, led ;
|
||||
|
||||
printf ("Raspberry Pi wiringPi PWM test program\n") ;
|
||||
printf ("Raspberry Pi - 8-LED Sequencer\n") ;
|
||||
printf ("==============================\n") ;
|
||||
printf ("\n") ;
|
||||
printf ("Connect LEDs to the first 8 GPIO pins and watch ...\n") ;
|
||||
|
||||
if (wiringPiSetup () == -1)
|
||||
exit (1) ;
|
||||
wiringPiSetup () ;
|
||||
|
||||
pinMode (1, PWM_OUTPUT) ;
|
||||
for (i = 0 ; i < 8 ; ++i)
|
||||
pinMode (i, OUTPUT) ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
for (bright = 0 ; bright < 1024 ; ++bright)
|
||||
for (led = 0 ; led < 8 ; ++led)
|
||||
{
|
||||
pwmWrite (1, bright) ;
|
||||
delay (1) ;
|
||||
digitalWrite (led, 1) ;
|
||||
delay (100) ;
|
||||
}
|
||||
|
||||
for (bright = 1023 ; bright >= 0 ; --bright)
|
||||
for (led = 0 ; led < 8 ; ++led)
|
||||
{
|
||||
pwmWrite (1, bright) ;
|
||||
delay (1) ;
|
||||
digitalWrite (led, 0) ;
|
||||
delay (100) ;
|
||||
}
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,201 @@
|
|||
/*
|
||||
* clock.c:
|
||||
* Demo of the 128x64 graphics based LCD driver.
|
||||
* This is designed to drive the parallel interface LCD drivers
|
||||
* based on the popular 12864H controller chip.
|
||||
*
|
||||
* This test program assumes the following:
|
||||
* (Which is currently hard-wired into the driver)
|
||||
*
|
||||
* GPIO 0-7 is connected to display data pins 0-7.
|
||||
* GPIO 10 is CS1
|
||||
* GPIO 11 is CS2
|
||||
* GPIO 12 is STROBE
|
||||
* GPIO 10 is RS
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <time.h>
|
||||
#include <math.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <lcd128x64.h>
|
||||
|
||||
#ifndef TRUE
|
||||
# define TRUE (1==1)
|
||||
# define FALSE (1==2)
|
||||
#endif
|
||||
|
||||
double clockRadius ;
|
||||
double thickness, barLen ;
|
||||
int maxX, maxY ;
|
||||
|
||||
double rads (double degs)
|
||||
{
|
||||
return degs * M_PI / 180.0 ;
|
||||
}
|
||||
|
||||
void drawClockHands (void)
|
||||
{
|
||||
time_t t ;
|
||||
struct tm *now ;
|
||||
double angle, p, x0, y0, x1, y1 ;
|
||||
int h24, h, m, s ;
|
||||
char text [20] ;
|
||||
|
||||
time (&t) ;
|
||||
now = localtime (&t) ;
|
||||
|
||||
h24 = now->tm_hour ;
|
||||
m = now->tm_min ;
|
||||
s = now->tm_sec ;
|
||||
|
||||
h = h24 ;
|
||||
if (h > 12)
|
||||
h -= 12 ;
|
||||
|
||||
// Hour hand
|
||||
|
||||
angle = h * 30 + m * 0.5 ;
|
||||
x0 = sin (rads (angle)) * (clockRadius * 0.75) ;
|
||||
y0 = cos (rads (angle)) * (clockRadius * 0.75) ;
|
||||
for (p = -3.0 ; p <= 3.0 ; p += 0.2)
|
||||
{
|
||||
x1 = sin (rads (angle + p)) * (clockRadius * 0.7) ;
|
||||
y1 = cos (rads (angle + p)) * (clockRadius * 0.7) ;
|
||||
lcd128x64line (0, 0, x1, y1, 1) ;
|
||||
lcd128x64lineTo (x0, y0, 1) ;
|
||||
}
|
||||
|
||||
// Minute hand
|
||||
|
||||
angle = m * 6 ;
|
||||
x0 = sin (rads (angle)) * (clockRadius * 0.9) ;
|
||||
y0 = cos (rads (angle)) * (clockRadius * 0.9) ;
|
||||
for (p = -1.0 ; p <= 1.0 ; p += 0.2)
|
||||
{
|
||||
x1 = sin (rads (angle + p)) * (clockRadius * 0.85) ;
|
||||
y1 = cos (rads (angle + p)) * (clockRadius * 0.85) ;
|
||||
lcd128x64line (0, 0, x1, y1, 1) ;
|
||||
lcd128x64lineTo (x0, y0, 1) ;
|
||||
}
|
||||
|
||||
// Second hand
|
||||
|
||||
angle = s * 6 ;
|
||||
x0 = sin (rads (angle)) * (clockRadius * 0.2) ;
|
||||
y0 = cos (rads (angle)) * (clockRadius * 0.2) ;
|
||||
x1 = sin (rads (angle)) * (clockRadius * 0.95) ;
|
||||
y1 = cos (rads (angle)) * (clockRadius * 0.95) ;
|
||||
lcd128x64line (0 - x0, 0 - y0, x1, y1, 1) ;
|
||||
lcd128x64circle (0, 0, clockRadius * 0.1, 0, 1) ;
|
||||
lcd128x64circle (0, 0, clockRadius * 0.05, 1, 1) ;
|
||||
|
||||
// Text:
|
||||
|
||||
sprintf (text, "%02d:%02d:%02d", h24, m, s) ;
|
||||
lcd128x64puts (32, 24, text, 0, 1) ;
|
||||
|
||||
sprintf (text, "%2d/%2d/%2d", now->tm_mday, now->tm_mon + 1, now->tm_year - 100) ;
|
||||
lcd128x64puts (32, -23, text, 0, 1) ;
|
||||
}
|
||||
|
||||
void drawClockFace (void)
|
||||
{
|
||||
int m ;
|
||||
double d, px1, py1, px2, py2 ;
|
||||
|
||||
lcd128x64clear (0) ;
|
||||
lcd128x64circle (0,0, clockRadius, 1, TRUE) ;
|
||||
lcd128x64circle (0,0, clockRadius - thickness, 0, TRUE) ;
|
||||
|
||||
// The four big indicators for 12,15,30 and 45
|
||||
|
||||
lcd128x64rectangle (- 3, clockRadius - barLen, 3, clockRadius, 1, TRUE) ; // 12
|
||||
lcd128x64rectangle (clockRadius - barLen, 3, clockRadius, -3, 1, TRUE) ; // 3
|
||||
lcd128x64rectangle (- 3, -clockRadius + barLen, 3, -clockRadius, 1, TRUE) ; // 6
|
||||
lcd128x64rectangle (-clockRadius + barLen, 3, -clockRadius, -3, 1, TRUE) ; // 9
|
||||
|
||||
|
||||
// Smaller 5 and 1 minute ticks
|
||||
|
||||
for (m = 0 ; m < 60 ; ++m)
|
||||
{
|
||||
px1 = sin (rads (m * 6)) * clockRadius ;
|
||||
py1 = cos (rads (m * 6)) * clockRadius ;
|
||||
if ((m % 5) == 0)
|
||||
d = barLen ;
|
||||
else
|
||||
d = barLen / 2.0 ;
|
||||
|
||||
px2 = sin (rads (m * 6)) * (clockRadius - d) ;
|
||||
py2 = cos (rads (m * 6)) * (clockRadius - d) ;
|
||||
lcd128x64line (px1, py1, px2, py2, 1) ;
|
||||
}
|
||||
}
|
||||
|
||||
void setup (void)
|
||||
{
|
||||
lcd128x64getScreenSize (&maxX, &maxY) ;
|
||||
clockRadius = maxY / 2 - 1 ;
|
||||
thickness = maxX / 48 ;
|
||||
barLen = thickness * 4 ;
|
||||
lcd128x64setOrigin (32, 32) ;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*
|
||||
***********************************************************************
|
||||
* The main program
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
int main (int argc, char *argv [])
|
||||
{
|
||||
time_t now ;
|
||||
|
||||
wiringPiSetup () ;
|
||||
|
||||
lcd128x64setup () ;
|
||||
|
||||
setup () ;
|
||||
for (;;)
|
||||
{
|
||||
drawClockFace () ;
|
||||
drawClockHands () ;
|
||||
lcd128x64update () ;
|
||||
|
||||
now = time (NULL) ;
|
||||
while (time (NULL) == now)
|
||||
delay (10) ;
|
||||
}
|
||||
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,238 @@
|
|||
/*
|
||||
* ds1302.c:
|
||||
* Real Time clock
|
||||
*
|
||||
* Copyright (c) 2013 Gordon Henderson.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
#include <time.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <ds1302.h>
|
||||
|
||||
// Register defines
|
||||
|
||||
#define RTC_SECS 0
|
||||
#define RTC_MINS 1
|
||||
#define RTC_HOURS 2
|
||||
#define RTC_DATE 3
|
||||
#define RTC_MONTH 4
|
||||
#define RTC_DAY 5
|
||||
#define RTC_YEAR 6
|
||||
#define RTC_WP 7
|
||||
#define RTC_TC 8
|
||||
#define RTC_BM 31
|
||||
|
||||
|
||||
static unsigned int masks [] = { 0x7F, 0x7F, 0x3F, 0x3F, 0x1F, 0x07, 0xFF } ;
|
||||
|
||||
|
||||
/*
|
||||
* bcdToD: dToBCD:
|
||||
* BCD decode/encode
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int bcdToD (unsigned int byte, unsigned int mask)
|
||||
{
|
||||
unsigned int b1, b2 ;
|
||||
byte &= mask ;
|
||||
b1 = byte & 0x0F ;
|
||||
b2 = ((byte >> 4) & 0x0F) * 10 ;
|
||||
return b1 + b2 ;
|
||||
}
|
||||
|
||||
static unsigned int dToBcd (unsigned int byte)
|
||||
{
|
||||
return ((byte / 10) << 4) + (byte % 10) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* ramTest:
|
||||
* Simple test of the 31 bytes of RAM inside the DS1302 chip
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int ramTestValues [] =
|
||||
{ 0x00, 0xFF, 0xAA, 0x55, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x00, 0xF0, 0x0F, -1 } ;
|
||||
|
||||
static int ramTest (void)
|
||||
{
|
||||
int addr ;
|
||||
int got ;
|
||||
int i = 0 ;
|
||||
int errors = 0 ;
|
||||
int testVal ;
|
||||
|
||||
printf ("DS1302 RAM TEST\n") ;
|
||||
|
||||
testVal = ramTestValues [i] ;
|
||||
|
||||
while (testVal != -1)
|
||||
{
|
||||
for (addr = 0 ; addr < 31 ; ++addr)
|
||||
ds1302ramWrite (addr, testVal) ;
|
||||
|
||||
for (addr = 0 ; addr < 31 ; ++addr)
|
||||
if ((got = ds1302ramRead (addr)) != testVal)
|
||||
{
|
||||
printf ("DS1302 RAM Failure: Address: %2d, Expected: 0x%02X, Got: 0x%02X\n",
|
||||
addr, testVal, got) ;
|
||||
++errors ;
|
||||
}
|
||||
testVal = ramTestValues [++i] ;
|
||||
}
|
||||
|
||||
for (addr = 0 ; addr < 31 ; ++addr)
|
||||
ds1302ramWrite (addr, addr) ;
|
||||
|
||||
for (addr = 0 ; addr < 31 ; ++addr)
|
||||
if ((got = ds1302ramRead (addr)) != addr)
|
||||
{
|
||||
printf ("DS1302 RAM Failure: Address: %2d, Expected: 0x%02X, Got: 0x%02X\n",
|
||||
addr, addr, got) ;
|
||||
++errors ;
|
||||
}
|
||||
|
||||
if (errors == 0)
|
||||
printf ("-- DS1302 RAM TEST: OK\n") ;
|
||||
else
|
||||
printf ("-- DS1302 RAM TEST FAILURE. %d errors.\n", errors) ;
|
||||
|
||||
return 0 ;
|
||||
}
|
||||
|
||||
/*
|
||||
* setLinuxClock:
|
||||
* Set the Linux clock from the hardware
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int setLinuxClock (void)
|
||||
{
|
||||
char dateTime [20] ;
|
||||
char command [64] ;
|
||||
int clock [8] ;
|
||||
|
||||
|
||||
printf ("Setting the Linux Clock from the DS1302... ") ; fflush (stdout) ;
|
||||
|
||||
ds1302clockRead (clock) ;
|
||||
|
||||
// [MMDDhhmm[[CC]YY][.ss]]
|
||||
|
||||
sprintf (dateTime, "%02d%02d%02d%02d%02d%02d.%02d",
|
||||
bcdToD (clock [RTC_MONTH], masks [RTC_MONTH]),
|
||||
bcdToD (clock [RTC_DATE], masks [RTC_DATE]),
|
||||
bcdToD (clock [RTC_HOURS], masks [RTC_HOURS]),
|
||||
bcdToD (clock [RTC_MINS], masks [RTC_MINS]),
|
||||
20,
|
||||
bcdToD (clock [RTC_YEAR], masks [RTC_YEAR]),
|
||||
bcdToD (clock [RTC_SECS], masks [RTC_SECS])) ;
|
||||
|
||||
sprintf (command, "/bin/date %s", dateTime) ;
|
||||
system (command) ;
|
||||
|
||||
return 0 ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* setDSclock:
|
||||
* Set the DS1302 block from Linux time
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int setDSclock (void)
|
||||
{
|
||||
struct tm t ;
|
||||
time_t now ;
|
||||
int clock [8] ;
|
||||
|
||||
printf ("Setting the clock in the DS1302 from Linux time... ") ;
|
||||
|
||||
now = time (NULL) ;
|
||||
gmtime_r (&now, &t) ;
|
||||
|
||||
clock [ 0] = dToBcd (t.tm_sec) ; // seconds
|
||||
clock [ 1] = dToBcd (t.tm_min) ; // mins
|
||||
clock [ 2] = dToBcd (t.tm_hour) ; // hours
|
||||
clock [ 3] = dToBcd (t.tm_mday) ; // date
|
||||
clock [ 4] = dToBcd (t.tm_mon + 1) ; // months 0-11 --> 1-12
|
||||
clock [ 5] = dToBcd (t.tm_wday + 1) ; // weekdays (sun 0)
|
||||
clock [ 6] = dToBcd (t.tm_year - 100) ; // years
|
||||
clock [ 7] = 0 ; // W-Protect off
|
||||
|
||||
ds1302clockWrite (clock) ;
|
||||
|
||||
printf ("OK\n") ;
|
||||
|
||||
return 0 ;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
int main (int argc, char *argv [])
|
||||
{
|
||||
int i ;
|
||||
int clock [8] ;
|
||||
|
||||
wiringPiSetup () ;
|
||||
ds1302setup (0, 1, 2) ;
|
||||
|
||||
if (argc == 2)
|
||||
{
|
||||
/**/ if (strcmp (argv [1], "-slc") == 0)
|
||||
return setLinuxClock () ;
|
||||
else if (strcmp (argv [1], "-sdsc") == 0)
|
||||
return setDSclock () ;
|
||||
else if (strcmp (argv [1], "-rtest") == 0)
|
||||
return ramTest () ;
|
||||
else
|
||||
{
|
||||
printf ("Usage: ds1302 [-slc | -sdsc | -rtest]\n") ;
|
||||
return EXIT_FAILURE ;
|
||||
}
|
||||
}
|
||||
|
||||
for (i = 0 ;; ++i)
|
||||
{
|
||||
printf ("%5d: ", i) ;
|
||||
|
||||
ds1302clockRead (clock) ;
|
||||
printf (" %2d:%02d:%02d",
|
||||
bcdToD (clock [2], masks [2]), bcdToD (clock [1], masks [1]), bcdToD (clock [0], masks [0])) ;
|
||||
|
||||
printf (" %2d/%02d/%04d",
|
||||
bcdToD (clock [3], masks [3]), bcdToD (clock [4], masks [4]), bcdToD (clock [6], masks [6]) + 2000) ;
|
||||
|
||||
printf ("\n") ;
|
||||
|
||||
delay (200) ;
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
Binary file not shown.
Before Width: | Height: | Size: 4.7 KiB |
|
@ -38,16 +38,11 @@
|
|||
#include <wiringPi.h>
|
||||
|
||||
|
||||
// What GPIO input are we using?
|
||||
// This is a wiringPi pin number
|
||||
|
||||
#define BUTTON_PIN 0
|
||||
|
||||
// globalCounter:
|
||||
// Global variable to count interrupts
|
||||
// Should be declared volatile to make sure the compiler doesn't cache it.
|
||||
|
||||
static volatile int globalCounter = 0 ;
|
||||
static volatile int globalCounter [8] ;
|
||||
|
||||
|
||||
/*
|
||||
|
@ -55,10 +50,14 @@ static volatile int globalCounter = 0 ;
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void myInterrupt (void)
|
||||
{
|
||||
++globalCounter ;
|
||||
}
|
||||
void myInterrupt0 (void) { ++globalCounter [0] ; }
|
||||
void myInterrupt1 (void) { ++globalCounter [1] ; }
|
||||
void myInterrupt2 (void) { ++globalCounter [2] ; }
|
||||
void myInterrupt3 (void) { ++globalCounter [3] ; }
|
||||
void myInterrupt4 (void) { ++globalCounter [4] ; }
|
||||
void myInterrupt5 (void) { ++globalCounter [5] ; }
|
||||
void myInterrupt6 (void) { ++globalCounter [6] ; }
|
||||
void myInterrupt7 (void) { ++globalCounter [7] ; }
|
||||
|
||||
|
||||
/*
|
||||
|
@ -69,30 +68,42 @@ void myInterrupt (void)
|
|||
|
||||
int main (void)
|
||||
{
|
||||
int myCounter = 0 ;
|
||||
int gotOne, pin ;
|
||||
int myCounter [8] ;
|
||||
|
||||
if (wiringPiSetup () < 0)
|
||||
{
|
||||
fprintf (stderr, "Unable to setup wiringPi: %s\n", strerror (errno)) ;
|
||||
return 1 ;
|
||||
}
|
||||
for (pin = 0 ; pin < 8 ; ++pin)
|
||||
globalCounter [pin] = myCounter [pin] = 0 ;
|
||||
|
||||
if (wiringPiISR (BUTTON_PIN, INT_EDGE_FALLING, &myInterrupt) < 0)
|
||||
{
|
||||
fprintf (stderr, "Unable to setup ISR: %s\n", strerror (errno)) ;
|
||||
return 1 ;
|
||||
}
|
||||
wiringPiSetup () ;
|
||||
|
||||
wiringPiISR (0, INT_EDGE_FALLING, &myInterrupt0) ;
|
||||
wiringPiISR (1, INT_EDGE_FALLING, &myInterrupt1) ;
|
||||
wiringPiISR (2, INT_EDGE_FALLING, &myInterrupt2) ;
|
||||
wiringPiISR (3, INT_EDGE_FALLING, &myInterrupt3) ;
|
||||
wiringPiISR (4, INT_EDGE_FALLING, &myInterrupt4) ;
|
||||
wiringPiISR (5, INT_EDGE_FALLING, &myInterrupt5) ;
|
||||
wiringPiISR (6, INT_EDGE_FALLING, &myInterrupt6) ;
|
||||
wiringPiISR (7, INT_EDGE_FALLING, &myInterrupt7) ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
gotOne = 0 ;
|
||||
printf ("Waiting ... ") ; fflush (stdout) ;
|
||||
|
||||
while (myCounter == globalCounter)
|
||||
delay (100) ;
|
||||
|
||||
printf (" Done. counter: %5d\n", globalCounter) ;
|
||||
myCounter = globalCounter ;
|
||||
for (;;)
|
||||
{
|
||||
for (pin = 0 ; pin < 8 ; ++pin)
|
||||
{
|
||||
if (globalCounter [pin] != myCounter [pin])
|
||||
{
|
||||
printf (" Int on pin %d: Counter: %5d\n", pin, globalCounter [pin]) ;
|
||||
myCounter [pin] = globalCounter [pin] ;
|
||||
++gotOne ;
|
||||
}
|
||||
}
|
||||
if (gotOne != 0)
|
||||
break ;
|
||||
}
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
|
|
248
examples/lcd.c
248
examples/lcd.c
|
@ -4,7 +4,19 @@
|
|||
* This is designed to drive the parallel interface LCD drivers
|
||||
* based in the Hitachi HD44780U controller and compatables.
|
||||
*
|
||||
* Copyright (c) 2012 Gordon Henderson.
|
||||
* This test program assumes the following:
|
||||
*
|
||||
* 8-bit displays:
|
||||
* GPIO 0-7 is connected to display data pins 0-7.
|
||||
* GPIO 11 is the RS pin.
|
||||
* GPIO 10 is the Strobe/E pin.
|
||||
*
|
||||
* For 4-bit interface:
|
||||
* GPIO 4-7 is connected to display data pins 4-7.
|
||||
* GPIO 11 is the RS pin.
|
||||
* GPIO 10 is the Strobe/E pin.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
|
@ -35,94 +47,208 @@
|
|||
#include <wiringPi.h>
|
||||
#include <lcd.h>
|
||||
|
||||
int main (void)
|
||||
{
|
||||
int i, j ;
|
||||
int fd1, fd2 ;
|
||||
#ifndef TRUE
|
||||
# define TRUE (1==1)
|
||||
# define FALSE (1==2)
|
||||
#endif
|
||||
|
||||
char message1 [256] ;
|
||||
char message2 [256] ;
|
||||
char buf1 [30] ;
|
||||
char buf2 [30] ;
|
||||
static unsigned char newChar [8] =
|
||||
{
|
||||
0b11111,
|
||||
0b10001,
|
||||
0b10001,
|
||||
0b10101,
|
||||
0b11111,
|
||||
0b10001,
|
||||
0b10001,
|
||||
0b11111,
|
||||
} ;
|
||||
|
||||
|
||||
int usage (const char *progName)
|
||||
{
|
||||
fprintf (stderr, "Usage: %s bits cols rows\n", progName) ;
|
||||
return EXIT_FAILURE ;
|
||||
}
|
||||
|
||||
static const char *message =
|
||||
" "
|
||||
"Wiring Pi by Gordon Henderson. HTTP://WIRINGPI.COM/"
|
||||
" " ;
|
||||
|
||||
void scrollMessage (int lcd, int line, int width)
|
||||
{
|
||||
char buf [32] ;
|
||||
static int position = 0 ;
|
||||
|
||||
strncpy (buf, &message [position], width) ;
|
||||
buf [width] = 0 ;
|
||||
lcdPosition (lcd, 0, line) ;
|
||||
lcdPuts (lcd, buf) ;
|
||||
|
||||
if (++position == (strlen (message) - width))
|
||||
position = 0 ;
|
||||
}
|
||||
|
||||
static void pingPong (int lcd, int cols)
|
||||
{
|
||||
static int position = 0 ;
|
||||
static int dir = 0 ;
|
||||
|
||||
if (dir == 0) // Setup
|
||||
{
|
||||
dir = 1 ;
|
||||
lcdPosition (lcd, 0, 3) ;
|
||||
lcdPutchar (lcd, '*') ;
|
||||
return ;
|
||||
}
|
||||
|
||||
lcdPosition (lcd, position, 3) ;
|
||||
lcdPutchar (lcd, ' ') ;
|
||||
position += dir ;
|
||||
|
||||
if (position == cols)
|
||||
{
|
||||
dir = -1 ;
|
||||
--position ;
|
||||
}
|
||||
|
||||
if (position < 0)
|
||||
{
|
||||
dir = 1 ;
|
||||
++position ;
|
||||
}
|
||||
|
||||
lcdPosition (lcd, position, 3) ;
|
||||
lcdPutchar (lcd, '#') ;
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void waitForEnter (void)
|
||||
{
|
||||
printf ("Press ENTER to continue: ") ;
|
||||
(void)fgetc (stdin) ;
|
||||
}
|
||||
|
||||
int main (int argc, char *argv[])
|
||||
{
|
||||
int i ;
|
||||
int lcd ;
|
||||
int bits, rows, cols ;
|
||||
|
||||
struct tm *t ;
|
||||
time_t tim ;
|
||||
|
||||
printf ("Raspberry Pi LCD test program\n") ;
|
||||
char buf [32] ;
|
||||
|
||||
if (wiringPiSetup () == -1)
|
||||
exit (1) ;
|
||||
if (argc != 4)
|
||||
return usage (argv [0]) ;
|
||||
|
||||
fd1 = lcdInit (4, 20, 4, 8, 9, 4,5,6,7,0,0,0,0) ;
|
||||
fd2 = lcdInit (2, 16, 4, 8, 10, 4,5,6,7,0,0,0,0) ;
|
||||
printf ("Raspberry Pi LCD test\n") ;
|
||||
printf ("=====================\n") ;
|
||||
|
||||
//fd1 = lcdInit (4, 20, 8, 8, 9, 0,1,2,3,4,5,6,7) ;
|
||||
//fd2 = lcdInit (2, 16, 8, 8, 10, 0,1,2,3,4,5,6,7) ;
|
||||
bits = atoi (argv [1]) ;
|
||||
cols = atoi (argv [2]) ;
|
||||
rows = atoi (argv [3]) ;
|
||||
|
||||
if (fd1 == -1)
|
||||
if (!((rows == 1) || (rows == 2) || (rows == 4)))
|
||||
{
|
||||
printf ("lcdInit 1 failed\n") ;
|
||||
return 1 ;
|
||||
fprintf (stderr, "%s: rows must be 1, 2 or 4\n", argv [0]) ;
|
||||
return EXIT_FAILURE ;
|
||||
}
|
||||
|
||||
if (fd2 == -1)
|
||||
if (!((cols == 16) || (cols == 20)))
|
||||
{
|
||||
printf ("lcdInit 2 failed\n") ;
|
||||
return 1 ;
|
||||
fprintf (stderr, "%s: cols must be 16 or 20\n", argv [0]) ;
|
||||
return EXIT_FAILURE ;
|
||||
}
|
||||
|
||||
sleep (1) ;
|
||||
wiringPiSetup () ;
|
||||
|
||||
lcdPosition (fd1, 0, 0) ; lcdPuts (fd1, " Gordon Henderson") ;
|
||||
lcdPosition (fd1, 0, 1) ; lcdPuts (fd1, " --------------") ;
|
||||
/*
|
||||
lcdPosition (fd1, 0, 2) ; lcdPuts (fd1, " 00:00:00") ;
|
||||
lcdPosition (fd1, 0, 3) ; lcdPuts (fd1, " DD:MM:YY") ;
|
||||
*/
|
||||
if (bits == 4)
|
||||
lcd = lcdInit (rows, cols, 4, 11,10, 4,5,6,7,0,0,0,0) ;
|
||||
else
|
||||
lcd = lcdInit (rows, cols, 8, 11,10, 0,1,2,3,4,5,6,7) ;
|
||||
|
||||
lcdPosition (fd2, 0, 0) ; lcdPuts (fd2, "Gordon Henderson") ;
|
||||
lcdPosition (fd2, 0, 1) ; lcdPuts (fd2, "----------------") ;
|
||||
if (lcd < 0)
|
||||
{
|
||||
fprintf (stderr, "%s: lcdInit failed\n", argv [0]) ;
|
||||
return -1 ;
|
||||
}
|
||||
|
||||
lcdPosition (lcd, 0, 0) ; lcdPuts (lcd, "Gordon Henderson") ;
|
||||
|
||||
if (rows > 1)
|
||||
{
|
||||
lcdPosition (lcd, 0, 1) ;
|
||||
for (i = 0 ; i < (cols - 1) ; ++i)
|
||||
lcdPutchar (lcd, '*') ;
|
||||
lcdPutchar (lcd, '2') ;
|
||||
|
||||
if (rows == 4)
|
||||
{
|
||||
lcdPosition (lcd, 0, 2) ;
|
||||
for (i = 0 ; i < ((cols - 1) / 2) ; ++i)
|
||||
lcdPuts (lcd, "=-") ;
|
||||
lcdPuts (lcd, "=3") ;
|
||||
|
||||
lcdPosition (lcd, 0, 3) ;
|
||||
for (i = 0 ; i < ((cols - 1) / 2) ; ++i)
|
||||
lcdPuts (lcd, "-=") ;
|
||||
lcdPuts (lcd, "-4") ;
|
||||
}
|
||||
}
|
||||
|
||||
sleep (2) ;
|
||||
|
||||
sprintf (message1, "%s", " http://projects.drogon.net/ ") ;
|
||||
sprintf (message2, "%s", " This is a long message to go into the smaller display just for a demonstration of what we can do. ") ;
|
||||
lcdPosition (lcd, 0, 0) ; lcdPuts (lcd, " wiringpi.com ") ;
|
||||
|
||||
|
||||
waitForEnter () ;
|
||||
|
||||
lcdCharDef (lcd, 2, newChar) ;
|
||||
|
||||
lcdClear (lcd) ;
|
||||
lcdPosition (lcd, 0, 0) ;
|
||||
lcdPuts (lcd, "User Char: ") ;
|
||||
lcdPutchar (lcd, 2) ;
|
||||
|
||||
lcdCursor (lcd, TRUE) ;
|
||||
lcdCursorBlink (lcd, TRUE) ;
|
||||
|
||||
waitForEnter () ;
|
||||
|
||||
lcdCursor (lcd, FALSE) ;
|
||||
lcdCursorBlink (lcd, FALSE) ;
|
||||
|
||||
|
||||
for (;;)
|
||||
{
|
||||
i = 0 ;
|
||||
j = 0 ;
|
||||
for (;;)
|
||||
{
|
||||
strncpy (buf1, &message1 [i], 20) ;
|
||||
buf1 [20] = 0 ;
|
||||
lcdPosition (fd1, 0, 1) ;
|
||||
lcdPuts (fd1, buf1) ;
|
||||
++i ;
|
||||
if (i == strlen (message1) - 20)
|
||||
i = 0 ;
|
||||
delay (250) ;
|
||||
|
||||
strncpy (buf2, &message2 [j], 16) ;
|
||||
buf2 [16] = 0 ;
|
||||
lcdPosition (fd2, 0, 1) ;
|
||||
lcdPuts (fd2, buf2) ;
|
||||
++j ;
|
||||
if (j == strlen (message2) - 16)
|
||||
j = 0 ;
|
||||
scrollMessage (lcd, 0, cols) ;
|
||||
|
||||
if (rows == 1)
|
||||
continue ;
|
||||
|
||||
tim = time (NULL) ;
|
||||
t = localtime (&tim) ;
|
||||
tim = time (NULL) ;
|
||||
t = localtime (&tim) ;
|
||||
|
||||
sprintf (buf1, "%02d:%02d:%02d", t->tm_hour, t->tm_min, t->tm_sec) ;
|
||||
lcdPosition (fd1, 5, 2) ;
|
||||
lcdPuts (fd1, buf1) ;
|
||||
sprintf (buf, "%02d:%02d:%02d", t->tm_hour, t->tm_min, t->tm_sec) ;
|
||||
|
||||
sprintf (buf1, "%02d/%02d/%02d", t->tm_mday, t->tm_mon + 1, t->tm_year+1900) ;
|
||||
lcdPosition (fd1, 4, 3) ;
|
||||
lcdPuts (fd1, buf1) ;
|
||||
lcdPosition (lcd, (cols - 8) / 2, 1) ;
|
||||
lcdPuts (lcd, buf) ;
|
||||
|
||||
delay (250) ;
|
||||
}
|
||||
if (rows == 2)
|
||||
continue ;
|
||||
|
||||
sprintf (buf, "%02d/%02d/%04d", t->tm_mday, t->tm_mon + 1, t->tm_year+1900) ;
|
||||
|
||||
lcdPosition (lcd, (cols - 10) / 2, 2) ;
|
||||
lcdPuts (lcd, buf) ;
|
||||
|
||||
pingPong (lcd, cols) ;
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
|
|
|
@ -39,27 +39,26 @@
|
|||
#include <wiringPi.h>
|
||||
#include <softPwm.h>
|
||||
|
||||
// The OK/Act LED is connected to BCM_GPIO pin 16
|
||||
|
||||
#define OK_LED 16
|
||||
|
||||
int main ()
|
||||
{
|
||||
int fd, i ;
|
||||
|
||||
wiringPiSetupGpio () ;
|
||||
|
||||
// Change the trigger on the OK/Act LED to "none"
|
||||
|
||||
if ((fd = open ("/sys/class/leds/led0/trigger", O_RDWR)) < 0)
|
||||
{
|
||||
fprintf (stderr, "Unable to change LED trigger: %s\n", strerror (errno)) ;
|
||||
return 1 ;
|
||||
}
|
||||
|
||||
write (fd, "none\n", 5) ;
|
||||
close (fd) ;
|
||||
|
||||
if (wiringPiSetupGpio () < 0)
|
||||
{
|
||||
fprintf (stderr, "Unable to setup GPIO: %s\n", strerror (errno)) ;
|
||||
return 1 ;
|
||||
}
|
||||
|
||||
softPwmCreate (OK_LED, 0, 100) ;
|
||||
|
||||
for (;;)
|
||||
|
|
|
@ -1,7 +1,6 @@
|
|||
/*
|
||||
* pwm.c:
|
||||
* Test of the software PWM driver. Needs 12 LEDs connected
|
||||
* to the Pi.
|
||||
* This tests the hardware PWM channel.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
|
@ -23,71 +22,37 @@
|
|||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <softPwm.h>
|
||||
|
||||
#define RANGE 100
|
||||
#define NUM_LEDS 12
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
|
||||
int ledMap [NUM_LEDS] = { 0, 1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13 } ;
|
||||
|
||||
int values [NUM_LEDS] = { 0, 17, 32, 50, 67, 85, 100, 85, 67, 50, 32, 17 } ;
|
||||
|
||||
int main ()
|
||||
int main (void)
|
||||
{
|
||||
int i, j ;
|
||||
char buf [80] ;
|
||||
int bright ;
|
||||
|
||||
printf ("Raspberry Pi wiringPi PWM test program\n") ;
|
||||
|
||||
if (wiringPiSetup () == -1)
|
||||
{
|
||||
fprintf (stdout, "oops: %s\n", strerror (errno)) ;
|
||||
return 1 ;
|
||||
}
|
||||
exit (1) ;
|
||||
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
{
|
||||
softPwmCreate (ledMap [i], 0, RANGE) ;
|
||||
printf ("%3d, %3d, %3d\n", i, ledMap [i], values [i]) ;
|
||||
}
|
||||
|
||||
fgets (buf, 80, stdin) ;
|
||||
|
||||
// Bring all up one by one:
|
||||
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
for (j = 0 ; j <= 100 ; ++j)
|
||||
{
|
||||
softPwmWrite (ledMap [i], j) ;
|
||||
delay (10) ;
|
||||
}
|
||||
|
||||
fgets (buf, 80, stdin) ;
|
||||
|
||||
// Down fast
|
||||
|
||||
for (i = 100 ; i > 0 ; --i)
|
||||
{
|
||||
for (j = 0 ; j < NUM_LEDS ; ++j)
|
||||
softPwmWrite (ledMap [j], i) ;
|
||||
delay (10) ;
|
||||
}
|
||||
|
||||
fgets (buf, 80, stdin) ;
|
||||
pinMode (1, PWM_OUTPUT) ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
softPwmWrite (ledMap [i], values [i]) ;
|
||||
for (bright = 0 ; bright < 1024 ; ++bright)
|
||||
{
|
||||
pwmWrite (1, bright) ;
|
||||
delay (1) ;
|
||||
}
|
||||
|
||||
delay (50) ;
|
||||
|
||||
i = values [0] ;
|
||||
for (j = 0 ; j < NUM_LEDS - 1 ; ++j)
|
||||
values [j] = values [j + 1] ;
|
||||
values [NUM_LEDS - 1] = i ;
|
||||
for (bright = 1023 ; bright >= 0 ; --bright)
|
||||
{
|
||||
pwmWrite (1, bright) ;
|
||||
delay (1) ;
|
||||
}
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
||||
|
|
|
@ -1,8 +1,6 @@
|
|||
/*
|
||||
* piFace.c:
|
||||
* Simple test for the PiFace interface board.
|
||||
*
|
||||
* Read the buttons and output the same to the LEDs
|
||||
* rht03.c:
|
||||
* Driver for the MaxDetect series sensors
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
|
@ -24,47 +22,42 @@
|
|||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <wiringPi.h>
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
|
||||
int outputs [4] = { 0,0,0,0 } ;
|
||||
#include <wiringPi.h>
|
||||
#include <maxdetect.h>
|
||||
|
||||
void scanButton (int button)
|
||||
{
|
||||
if (digitalRead (button) == LOW)
|
||||
{
|
||||
outputs [button] ^= 1 ;
|
||||
digitalWrite (button, outputs [button]) ;
|
||||
}
|
||||
|
||||
while (digitalRead (button) == LOW)
|
||||
delay (1) ;
|
||||
}
|
||||
#define RHT03_PIN 0
|
||||
|
||||
/*
|
||||
***********************************************************************
|
||||
* The main program
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
int main (void)
|
||||
{
|
||||
int pin, button ;
|
||||
int temp, rh ;
|
||||
int newTemp, newRh ;
|
||||
|
||||
printf ("Raspberry Pi wiringPiFace test program\n") ;
|
||||
|
||||
if (wiringPiSetupPiFace () == -1)
|
||||
exit (1) ;
|
||||
|
||||
// Enable internal pull-ups
|
||||
|
||||
for (pin = 0 ; pin < 8 ; ++pin)
|
||||
pullUpDnControl (pin, PUD_UP) ;
|
||||
temp = rh = newTemp = newRh = 0 ;
|
||||
|
||||
wiringPiSetup () ;
|
||||
piHiPri (55) ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
for (button = 0 ; button < 4 ; ++button)
|
||||
scanButton (button) ;
|
||||
delay (1) ;
|
||||
delay (100) ;
|
||||
|
||||
if (!readRHT03 (RHT03_PIN, &newTemp, &newRh))
|
||||
continue ;
|
||||
|
||||
if ((temp != newTemp) || (rh != newRh))
|
||||
{
|
||||
temp = newTemp ;
|
||||
rh = newRh ;
|
||||
printf ("Temp: %5.1f, RH: %5.1f%%\n", temp / 10.0, rh / 10.0) ;
|
||||
}
|
||||
}
|
||||
|
||||
return 0 ;
|
|
@ -0,0 +1,89 @@
|
|||
/*
|
||||
* softPwm.c:
|
||||
* Test of the software PWM driver. Needs 8 LEDs connected
|
||||
* to the Pi - e.g. Ladder board.
|
||||
*
|
||||
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <softPwm.h>
|
||||
|
||||
#define RANGE 100
|
||||
#define NUM_LEDS 8
|
||||
|
||||
int ledMap [NUM_LEDS] = { 0, 1, 2, 3, 4, 5, 6, 7 } ;
|
||||
|
||||
int values [NUM_LEDS] = { 0, 25, 50, 75, 100, 75, 50, 25 } ;
|
||||
|
||||
int main ()
|
||||
{
|
||||
int i, j ;
|
||||
char buf [80] ;
|
||||
|
||||
wiringPiSetup () ;
|
||||
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
{
|
||||
softPwmCreate (ledMap [i], 0, RANGE) ;
|
||||
printf ("%3d, %3d, %3d\n", i, ledMap [i], values [i]) ;
|
||||
}
|
||||
|
||||
fgets (buf, 80, stdin) ;
|
||||
|
||||
// Bring all up one by one:
|
||||
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
for (j = 0 ; j <= 100 ; ++j)
|
||||
{
|
||||
softPwmWrite (ledMap [i], j) ;
|
||||
delay (10) ;
|
||||
}
|
||||
|
||||
fgets (buf, 80, stdin) ;
|
||||
|
||||
// All Down
|
||||
|
||||
for (i = 100 ; i > 0 ; --i)
|
||||
{
|
||||
for (j = 0 ; j < NUM_LEDS ; ++j)
|
||||
softPwmWrite (ledMap [j], i) ;
|
||||
delay (10) ;
|
||||
}
|
||||
|
||||
fgets (buf, 80, stdin) ;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
for (i = 0 ; i < NUM_LEDS ; ++i)
|
||||
softPwmWrite (ledMap [i], values [i]) ;
|
||||
|
||||
delay (50) ;
|
||||
|
||||
i = values [0] ;
|
||||
for (j = 0 ; j < NUM_LEDS - 1 ; ++j)
|
||||
values [j] = values [j + 1] ;
|
||||
values [NUM_LEDS - 1] = i ;
|
||||
}
|
||||
}
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* tone.c:
|
||||
* softTone.c:
|
||||
* Test of the softTone module in wiringPi
|
||||
* Plays a scale out on pin 3 - connect pizeo disc to pin 3 & 0v
|
||||
*
|
||||
|
@ -38,11 +38,7 @@ int main ()
|
|||
{
|
||||
int i ;
|
||||
|
||||
if (wiringPiSetup () == -1)
|
||||
{
|
||||
fprintf (stdout, "oops: %s\n", strerror (errno)) ;
|
||||
return 1 ;
|
||||
}
|
||||
wiringPiSetup () ;
|
||||
|
||||
softToneCreate (PIN) ;
|
||||
|
||||
|
@ -55,5 +51,4 @@ int main ()
|
|||
delay (500) ;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
114
examples/speed.c
114
examples/speed.c
|
@ -31,93 +31,65 @@
|
|||
|
||||
#define FAST_COUNT 10000000
|
||||
#define SLOW_COUNT 1000000
|
||||
#define PASSES 5
|
||||
|
||||
void speedTest (int pin, int maxCount)
|
||||
{
|
||||
int count, sum, perSec, i ;
|
||||
unsigned int start, end ;
|
||||
|
||||
sum = 0 ;
|
||||
|
||||
for (i = 0 ; i < PASSES ; ++i)
|
||||
{
|
||||
start = millis () ;
|
||||
for (count = 0 ; count < maxCount ; ++count)
|
||||
digitalWrite (pin, 1) ;
|
||||
end = millis () ;
|
||||
printf (" %6d", end - start) ;
|
||||
fflush (stdout) ;
|
||||
sum += (end - start) ;
|
||||
}
|
||||
|
||||
digitalWrite (pin, 0) ;
|
||||
printf (". Av: %6dmS", sum / PASSES) ;
|
||||
perSec = (int)(double)maxCount / (double)((double)sum / (double)PASSES) * 1000.0 ;
|
||||
printf (": %7d/sec\n", perSec) ;
|
||||
}
|
||||
|
||||
|
||||
int main (void)
|
||||
{
|
||||
int i ;
|
||||
uint32_t start, end, count, sum, perSec ;
|
||||
|
||||
printf ("Raspberry Pi wiringPi speed test program\n") ;
|
||||
printf ("Raspberry Pi wiringPi GPIO speed test program\n") ;
|
||||
printf ("=============================================\n") ;
|
||||
|
||||
// Start the standard way
|
||||
|
||||
if (wiringPiSetup () == -1)
|
||||
exit (1) ;
|
||||
|
||||
printf ("Native wiringPi method: (%8d iterations)\n", FAST_COUNT) ;
|
||||
|
||||
printf ("\nNative wiringPi method: (%8d iterations)\n", FAST_COUNT) ;
|
||||
wiringPiSetup () ;
|
||||
pinMode (0, OUTPUT) ;
|
||||
speedTest (0, FAST_COUNT) ;
|
||||
|
||||
sum = 0 ;
|
||||
for (i = 0 ; i < 3 ; ++i)
|
||||
{
|
||||
printf (" Pass: %d: ", i) ;
|
||||
fflush (stdout) ;
|
||||
|
||||
start = millis () ;
|
||||
for (count = 0 ; count < FAST_COUNT ; ++count)
|
||||
digitalWrite (0, 1) ;
|
||||
end = millis () ;
|
||||
printf (" %8dmS\n", end - start) ;
|
||||
sum += (end - start) ;
|
||||
}
|
||||
digitalWrite (0, 0) ;
|
||||
printf (" Average: %8dmS", sum / 3) ;
|
||||
perSec = (int)(double)FAST_COUNT / (double)((double)sum / 3.0) * 1000.0 ;
|
||||
printf (": %6d/sec\n", perSec) ;
|
||||
|
||||
|
||||
printf ("Native GPIO method: (%8d iterations)\n", FAST_COUNT) ;
|
||||
|
||||
if (wiringPiSetupGpio () == -1)
|
||||
exit (1) ;
|
||||
// GPIO
|
||||
|
||||
printf ("\nNative GPIO method: (%8d iterations)\n", FAST_COUNT) ;
|
||||
wiringPiSetupGpio () ;
|
||||
pinMode (17, OUTPUT) ;
|
||||
speedTest (17, FAST_COUNT) ;
|
||||
|
||||
sum = 0 ;
|
||||
for (i = 0 ; i < 3 ; ++i)
|
||||
{
|
||||
printf (" Pass: %d: ", i) ;
|
||||
fflush (stdout) ;
|
||||
|
||||
start = millis () ;
|
||||
for (count = 0 ; count < 10000000 ; ++count)
|
||||
digitalWrite (17, 1) ;
|
||||
end = millis () ;
|
||||
printf (" %8dmS\n", end - start) ;
|
||||
sum += (end - start) ;
|
||||
}
|
||||
digitalWrite (17, 0) ;
|
||||
printf (" Average: %8dmS", sum / 3) ;
|
||||
perSec = (int)(double)FAST_COUNT / (double)((double)sum / 3.0) * 1000.0 ;
|
||||
printf (": %6d/sec\n", perSec) ;
|
||||
// Phys
|
||||
|
||||
printf ("\nPhysical pin GPIO method: (%8d iterations)\n", FAST_COUNT) ;
|
||||
wiringPiSetupPhys () ;
|
||||
pinMode (11, OUTPUT) ;
|
||||
speedTest (11, FAST_COUNT) ;
|
||||
|
||||
// Switch to SYS mode:
|
||||
|
||||
if (wiringPiSetupSys () == -1)
|
||||
exit (1) ;
|
||||
|
||||
printf ("/sys/class/gpio method: (%8d iterations)\n", SLOW_COUNT) ;
|
||||
|
||||
sum = 0 ;
|
||||
for (i = 0 ; i < 3 ; ++i)
|
||||
{
|
||||
printf (" Pass: %d: ", i) ;
|
||||
fflush (stdout) ;
|
||||
|
||||
start = millis () ;
|
||||
for (count = 0 ; count < SLOW_COUNT ; ++count)
|
||||
digitalWrite (17, 1) ;
|
||||
end = millis () ;
|
||||
printf (" %8dmS\n", end - start) ;
|
||||
sum += (end - start) ;
|
||||
}
|
||||
digitalWrite (17, 0) ;
|
||||
printf (" Average: %8dmS", sum / 3) ;
|
||||
perSec = (int)(double)SLOW_COUNT / (double)((double)sum / 3.0) * 1000.0 ;
|
||||
printf (": %6d/sec\n", perSec) ;
|
||||
system ("/usr/local/bin/gpio export 17 out") ;
|
||||
printf ("\n/sys/class/gpio method: (%8d iterations)\n", SLOW_COUNT) ;
|
||||
wiringPiSetupSys () ;
|
||||
speedTest (17, SLOW_COUNT) ;
|
||||
|
||||
return 0 ;
|
||||
}
|
||||
|
|
|
@ -30,20 +30,20 @@ INCLUDE = -I/usr/local/include
|
|||
CFLAGS = $(DEBUG) -Wall $(INCLUDE) -Winline -pipe
|
||||
|
||||
LDFLAGS = -L/usr/local/lib
|
||||
LIBS = -lwiringPi -lpthread -lm
|
||||
LIBS = -lwiringPi -lwiringPiDev -lpthread -lm
|
||||
|
||||
# May not need to alter anything below this line
|
||||
###############################################################################
|
||||
|
||||
SRC = gpio.c
|
||||
SRC = gpio.c extensions.c
|
||||
|
||||
OBJ = $(SRC:.c=.o)
|
||||
|
||||
all: gpio
|
||||
|
||||
gpio: gpio.o
|
||||
gpio: $(OBJ)
|
||||
@echo [Link]
|
||||
@$(CC) -o $@ gpio.o $(LDFLAGS) $(LIBS)
|
||||
@$(CC) -o $@ $(OBJ) $(LDFLAGS) $(LIBS)
|
||||
|
||||
.c.o:
|
||||
@echo [Compile] $<
|
||||
|
@ -51,7 +51,8 @@ gpio: gpio.o
|
|||
|
||||
.PHONEY: clean
|
||||
clean:
|
||||
rm -f $(OBJ) gpio *~ core tags *.bak
|
||||
@echo "[Clean]"
|
||||
@rm -f $(OBJ) gpio *~ core tags *.bak
|
||||
|
||||
.PHONEY: tags
|
||||
tags: $(SRC)
|
||||
|
@ -78,3 +79,6 @@ depend:
|
|||
makedepend -Y $(SRC)
|
||||
|
||||
# DO NOT DELETE
|
||||
|
||||
gpio.o: extensions.h
|
||||
extensions.o: extensions.h
|
||||
|
|
|
@ -0,0 +1,329 @@
|
|||
/*
|
||||
* extensions.c:
|
||||
* Part of the GPIO program to test, peek, poke and otherwise
|
||||
* noodle with the GPIO hardware on the Raspberry Pi.
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
#include <ctype.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <errno.h>
|
||||
#include <sys/types.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
|
||||
#include <mcp23008.h>
|
||||
#include <mcp23017.h>
|
||||
#include <mcp23s08.h>
|
||||
#include <mcp23s17.h>
|
||||
#include <sr595.h>
|
||||
|
||||
#include "extensions.h"
|
||||
|
||||
extern int wiringPiDebug ;
|
||||
|
||||
#ifndef TRUE
|
||||
# define TRUE (1==1)
|
||||
# define FALSE (1==2)
|
||||
#endif
|
||||
|
||||
// Local structure to hold details
|
||||
|
||||
struct extensionFunctionStruct
|
||||
{
|
||||
const char *name ;
|
||||
int (*function)(char *progName, int pinBase, char *params) ;
|
||||
} ;
|
||||
|
||||
|
||||
/*
|
||||
* extractInt:
|
||||
* Check & return an integer at the given location (prefixed by a :)
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static char *extractInt (char *progName, char *p, int *num)
|
||||
{
|
||||
if (*p != ':')
|
||||
{
|
||||
fprintf (stderr, "%s: colon expected\n", progName) ;
|
||||
return NULL ;
|
||||
}
|
||||
|
||||
++p ;
|
||||
|
||||
if (!isdigit (*p))
|
||||
{
|
||||
fprintf (stderr, "%s: digit expected\n", progName) ;
|
||||
return NULL ;
|
||||
}
|
||||
|
||||
*num = strtol (p, NULL, 0) ;
|
||||
while (isdigit (*p))
|
||||
++p ;
|
||||
|
||||
return p ;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* doExtensionMcp23008:
|
||||
* MCP23008 - 8-bit I2C GPIO expansion chip
|
||||
* mcp23002:base:i2cAddr
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doExtensionMcp23008 (char *progName, int pinBase, char *params)
|
||||
{
|
||||
int i2c ;
|
||||
|
||||
if ((params = extractInt (progName, params, &i2c)) == NULL)
|
||||
return FALSE ;
|
||||
|
||||
if ((i2c < 0x03) || (i2c > 0x77))
|
||||
{
|
||||
fprintf (stderr, "%s: i2c address (0x%X) out of range\n", progName, i2c) ;
|
||||
return FALSE ;
|
||||
}
|
||||
|
||||
mcp23008Setup (pinBase, i2c) ;
|
||||
|
||||
return TRUE ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doExtensionMcp23017:
|
||||
* MCP23008 - 16-bit I2C GPIO expansion chip
|
||||
* mcp23002:base:i2cAddr
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doExtensionMcp23017 (char *progName, int pinBase, char *params)
|
||||
{
|
||||
int i2c ;
|
||||
|
||||
if ((params = extractInt (progName, params, &i2c)) == NULL)
|
||||
return FALSE ;
|
||||
|
||||
if ((i2c < 0x03) || (i2c > 0x77))
|
||||
{
|
||||
fprintf (stderr, "%s: i2c address (0x%X) out of range\n", progName, i2c) ;
|
||||
return FALSE ;
|
||||
}
|
||||
|
||||
mcp23017Setup (pinBase, i2c) ;
|
||||
|
||||
return TRUE ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doExtensionMcp23s08:
|
||||
* MCP23s08 - 8-bit SPI GPIO expansion chip
|
||||
* mcp23s08:base:spi:port
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doExtensionMcp23s08 (char *progName, int pinBase, char *params)
|
||||
{
|
||||
int spi, port ;
|
||||
|
||||
if ((params = extractInt (progName, params, &spi)) == NULL)
|
||||
return FALSE ;
|
||||
|
||||
if ((spi < 0) || (spi > 1))
|
||||
{
|
||||
fprintf (stderr, "%s: SPI address (%d) out of range\n", progName, spi) ;
|
||||
return FALSE ;
|
||||
}
|
||||
|
||||
if ((params = extractInt (progName, params, &port)) == NULL)
|
||||
return FALSE ;
|
||||
|
||||
if ((port < 0) || (port > 7))
|
||||
{
|
||||
fprintf (stderr, "%s: port address (%d) out of range\n", progName, port) ;
|
||||
return FALSE ;
|
||||
}
|
||||
|
||||
mcp23s08Setup (pinBase, spi, port) ;
|
||||
|
||||
return TRUE ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doExtensionMcp23s17:
|
||||
* MCP23s17 - 16-bit SPI GPIO expansion chip
|
||||
* mcp23s17:base:spi:port
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doExtensionMcp23s17 (char *progName, int pinBase, char *params)
|
||||
{
|
||||
int spi, port ;
|
||||
|
||||
if ((params = extractInt (progName, params, &spi)) == NULL)
|
||||
return FALSE ;
|
||||
|
||||
if ((spi < 0) || (spi > 1))
|
||||
{
|
||||
fprintf (stderr, "%s: SPI address (%d) out of range\n", progName, spi) ;
|
||||
return FALSE ;
|
||||
}
|
||||
|
||||
if ((params = extractInt (progName, params, &port)) == NULL)
|
||||
return FALSE ;
|
||||
|
||||
if ((port < 0) || (port > 7))
|
||||
{
|
||||
fprintf (stderr, "%s: port address (%d) out of range\n", progName, port) ;
|
||||
return FALSE ;
|
||||
}
|
||||
|
||||
mcp23s17Setup (pinBase, spi, port) ;
|
||||
|
||||
return TRUE ;
|
||||
}
|
||||
|
||||
/*
|
||||
* doExtensionSr595:
|
||||
* Shift Register 74x595
|
||||
* sr595:base:pins:data:clock:latch
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doExtensionSr595 (char *progName, int pinBase, char *params)
|
||||
{
|
||||
int pins, data, clock, latch ;
|
||||
|
||||
// Extract pins
|
||||
|
||||
if ((params = extractInt (progName, params, &pins)) == NULL)
|
||||
return FALSE ;
|
||||
|
||||
if ((pins < 8) || (pins > 32))
|
||||
{
|
||||
fprintf (stderr, "%s: pin count (%d) out of range - 8-32 expected.\n", progName, pins) ;
|
||||
return FALSE ;
|
||||
}
|
||||
|
||||
if ((params = extractInt (progName, params, &data)) == NULL)
|
||||
return FALSE ;
|
||||
|
||||
if ((params = extractInt (progName, params, &clock)) == NULL)
|
||||
return FALSE ;
|
||||
|
||||
if ((params = extractInt (progName, params, &latch)) == NULL)
|
||||
return FALSE ;
|
||||
|
||||
sr595Setup (pinBase, pins, data, clock, latch) ;
|
||||
|
||||
return TRUE ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Function list
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
struct extensionFunctionStruct extensionFunctions [] =
|
||||
{
|
||||
{ "mcp23008", &doExtensionMcp23008 },
|
||||
{ "mcp23017", &doExtensionMcp23017 },
|
||||
{ "mcp23s08", &doExtensionMcp23s08 },
|
||||
{ "mcp23s17", &doExtensionMcp23s17 },
|
||||
{ "sr595", &doExtensionSr595 },
|
||||
{ NULL, NULL },
|
||||
} ;
|
||||
|
||||
|
||||
/*
|
||||
* doExtension:
|
||||
* Load in a wiringPi extension
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int doExtension (char *progName, char *extensionData)
|
||||
{
|
||||
char *p ;
|
||||
char *extension = extensionData ;
|
||||
struct extensionFunctionStruct *extensionFn ;
|
||||
int pinBase = 0 ;
|
||||
|
||||
// Get the extension extension name by finding the first colon
|
||||
|
||||
p = extension ;
|
||||
while (*p != ':')
|
||||
{
|
||||
if (!*p) // ran out of characters
|
||||
{
|
||||
fprintf (stderr, "%s: extension name not terminated by a colon\n", progName) ;
|
||||
return FALSE ;
|
||||
}
|
||||
++p ;
|
||||
}
|
||||
|
||||
*p++ = 0 ;
|
||||
|
||||
if (!isdigit (*p))
|
||||
{
|
||||
fprintf (stderr, "%s: pinBase number expected after extension name\n", progName) ;
|
||||
return FALSE ;
|
||||
}
|
||||
|
||||
while (isdigit (*p))
|
||||
{
|
||||
if (pinBase > 1000000000)
|
||||
{
|
||||
fprintf (stderr, "%s: pinBase too large\n", progName) ;
|
||||
return FALSE ;
|
||||
}
|
||||
|
||||
pinBase = pinBase * 10 + (*p - '0') ;
|
||||
++p ;
|
||||
}
|
||||
|
||||
if (pinBase < 64)
|
||||
{
|
||||
fprintf (stderr, "%s: pinBase (%d) too small. Minimum is 64.\n", progName, pinBase) ;
|
||||
return FALSE ;
|
||||
}
|
||||
|
||||
// Search for extensions:
|
||||
|
||||
for (extensionFn = extensionFunctions ; extensionFn->name != NULL ; ++extensionFn)
|
||||
{
|
||||
if (strcmp (extensionFn->name, extension) == 0)
|
||||
return extensionFn->function (progName, pinBase, p) ;
|
||||
}
|
||||
|
||||
fprintf (stderr, "%s: extension %s not found\n", progName, extension) ;
|
||||
return FALSE ;
|
||||
}
|
|
@ -0,0 +1,26 @@
|
|||
/*
|
||||
* extensions.h:
|
||||
* Part of the GPIO program to test, peek, poke and otherwise
|
||||
* noodle with the GPIO hardware on the Raspberry Pi.
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
|
||||
extern int doExtension (char *progName, char *extensionData) ;
|
91
gpio/gpio.1
91
gpio/gpio.1
|
@ -1,15 +1,19 @@
|
|||
.TH "GPIO" "21st October 2012" "Command-Line access to Raspberry Pi and PiFace GPIO"
|
||||
.TH "GPIO" "March 2013" "Command-Line access to Raspberry Pi's GPIO"
|
||||
|
||||
.SH NAME
|
||||
gpio \- Command-line access to Raspberry Pi and PiFace GPIO
|
||||
gpio \- Command-line access to Raspberry Pi's GPIO
|
||||
|
||||
.SH SYNOPSIS
|
||||
.B gpio
|
||||
.B \-v
|
||||
.PP
|
||||
.B gpio
|
||||
.B [ \-g ]
|
||||
.B read/write/wb/pwm/clock/mode ...
|
||||
.B [ \-g | \-1 ]
|
||||
.B mode/read/write/aread/awrite/wb/pwm/clock ...
|
||||
.PP
|
||||
.B gpio
|
||||
.B [ \-x extension:params ]
|
||||
.B mode/read/write/aread/awrite/pwm ...
|
||||
.PP
|
||||
.B gpio
|
||||
.B [ \-p ]
|
||||
|
@ -17,7 +21,7 @@ gpio \- Command-line access to Raspberry Pi and PiFace GPIO
|
|||
.B ...
|
||||
.PP
|
||||
.B gpio
|
||||
.B readall
|
||||
.B readall/reset
|
||||
.PP
|
||||
.B gpio
|
||||
.B unexportall/exports
|
||||
|
@ -27,6 +31,10 @@ gpio \- Command-line access to Raspberry Pi and PiFace GPIO
|
|||
.B ...
|
||||
.PP
|
||||
.B gpio
|
||||
.B wfi
|
||||
.B ...
|
||||
.PP
|
||||
.B gpio
|
||||
.B drive
|
||||
group value
|
||||
.PP
|
||||
|
@ -73,12 +81,28 @@ Output the current version including the board revision of the Raspberry Pi.
|
|||
.TP
|
||||
.B \-g
|
||||
Use the BCM_GPIO pins numbers rather than wiringPi pin numbers.
|
||||
\fINOTE:\fR The BCM_GPIO pin numbers are always used with the
|
||||
\fINote:\fR The BCM_GPIO pin numbers are always used with the
|
||||
export and edge commands.
|
||||
|
||||
.TP
|
||||
.B \-1
|
||||
Use the physical pin numbers rather than wiringPi pin numbers.
|
||||
\fINote:\fR that this applies to the P1 connector only. It is not possible to
|
||||
use pins on the Revision 2 P5 connector this way, and as with \-g the
|
||||
BCM_GPIO pin numbers are always used with the export and edge commands.
|
||||
|
||||
.TP
|
||||
.B \-x extension
|
||||
This causes the named extension to be initialised. Extensions
|
||||
comprise of a name (e.g. mcp23017) followed by a colon, then the
|
||||
pin-base, then more optional parameters depending on the extension type.
|
||||
See the web page on http://wiringpi.com/the-gpio-utility/
|
||||
|
||||
.TP
|
||||
.B \-p
|
||||
Use the PiFace interface board and its corresponding pin numbers.
|
||||
Use the PiFace interface board and its corresponding pin numbers. The PiFace
|
||||
will always appear at pin number 200 in the gpio command. You can assign any
|
||||
pin numbers you like in your own programs though.
|
||||
|
||||
.TP
|
||||
.B read <pin>
|
||||
|
@ -102,6 +126,11 @@ Output a table of all GPIO pins values. The values represent the actual values r
|
|||
if the pin is in input mode, or the last value written if the pin is in output
|
||||
mode.
|
||||
|
||||
.TP
|
||||
.B reset
|
||||
Resets the GPIO - As much as it's possible to do. All pins are set to input
|
||||
mode and all the internal pull-up/down resistors are disconnected (tristate mode).
|
||||
|
||||
.TP
|
||||
.B pwm <pin> <value>
|
||||
Write a PWM value (0-1023) to the given pin. The pin needs to be put
|
||||
|
@ -157,6 +186,12 @@ requiring root/sudo.
|
|||
.B unexport
|
||||
Un-Export a GPIO pin in the /sys/class/gpio directory.
|
||||
|
||||
.TP
|
||||
.B wfi <pin> <mode>
|
||||
This set the given pin to the supplied interrupt mode: rising, falling
|
||||
or both then waits for the interrupt to happen. It's a non-busy wait,
|
||||
so does not consume and CPU while it's waiting.
|
||||
|
||||
.TP
|
||||
.B drive
|
||||
group value
|
||||
|
@ -207,26 +242,26 @@ The board jumpers need to be in-place to do this operation.
|
|||
|
||||
.PP
|
||||
.TS
|
||||
r r r l.
|
||||
WiringPi GPIO-r1 GPIO-r2 Function
|
||||
c c c c l.
|
||||
WiringPi GPIO-r1 GPIO-r2 P1-Phys Function
|
||||
_
|
||||
0 17 17
|
||||
1 18 18 (PWM)
|
||||
2 21 27
|
||||
3 22 22
|
||||
4 23 23
|
||||
5 24 24
|
||||
6 25 25
|
||||
7 4 4
|
||||
8 0 2 I2C: SDA0
|
||||
9 1 3 I2C: SCL0
|
||||
10 8 8 SPI: CE0
|
||||
11 7 7 SPI: CE1
|
||||
12 10 10 SPI: MOSI
|
||||
13 9 9 SPI: MISO
|
||||
14 11 11 SPI: SCLK
|
||||
15 14 14 TxD
|
||||
16 15 16 RxD
|
||||
0 17 17 11
|
||||
1 18 18 12 (PWM)
|
||||
2 21 27 13
|
||||
3 22 22 15
|
||||
4 23 23 16
|
||||
5 24 24 18
|
||||
6 25 25 22
|
||||
7 4 4 7
|
||||
8 0 2 3 I2C: SDA0
|
||||
9 1 3 5 I2C: SCL0
|
||||
10 8 8 24 SPI: CE0
|
||||
11 7 7 26 SPI: CE1
|
||||
12 10 10 19 SPI: MOSI
|
||||
13 9 9 21 SPI: MISO
|
||||
14 11 11 23 SPI: SCLK
|
||||
15 14 14 8 TxD
|
||||
16 15 16 10 RxD
|
||||
17 - 28
|
||||
18 - 29
|
||||
19 - 30
|
||||
|
@ -272,7 +307,7 @@ pin numbers.
|
|||
.LP
|
||||
WiringPi's home page
|
||||
.IP
|
||||
https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
http://wiringpi.com/
|
||||
|
||||
.SH AUTHOR
|
||||
|
||||
|
@ -284,7 +319,7 @@ Please report bugs to <projects@drogon.net>
|
|||
|
||||
.SH COPYRIGHT
|
||||
|
||||
Copyright (c) 2012 Gordon Henderson
|
||||
Copyright (c) 2012-2013 Gordon Henderson
|
||||
This is free software; see the source for copying conditions. There is NO
|
||||
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
||||
|
||||
|
|
384
gpio/gpio.c
384
gpio/gpio.c
|
@ -2,7 +2,7 @@
|
|||
* gpio.c:
|
||||
* Swiss-Army-Knife, Set-UID command-line interface to the Raspberry
|
||||
* Pi's GPIO.
|
||||
* Copyright (c) 2012 Gordon Henderson
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
|
@ -26,14 +26,20 @@
|
|||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
#include <ctype.h>
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <errno.h>
|
||||
#include <sys/types.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
|
||||
#include <gertboard.h>
|
||||
#include <piFace.h>
|
||||
|
||||
#include "extensions.h"
|
||||
|
||||
extern int wiringPiDebug ;
|
||||
|
||||
|
@ -42,22 +48,26 @@ extern int wiringPiDebug ;
|
|||
# define FALSE (1==2)
|
||||
#endif
|
||||
|
||||
#define VERSION "1.12"
|
||||
#define VERSION "2.02"
|
||||
#define I2CDETECT "/usr/sbin/i2cdetect"
|
||||
|
||||
static int wpMode ;
|
||||
|
||||
char *usage = "Usage: gpio -v\n"
|
||||
" gpio -h\n"
|
||||
" gpio [-g] <read/write/wb/pwm/clock/mode> ...\n"
|
||||
" gpio [-g|-1] [-x extension:params] ...\n"
|
||||
" gpio [-p] <read/write/wb> ...\n"
|
||||
" gpio readall\n"
|
||||
" gpio unexportall/exports ...\n"
|
||||
" gpio <read/write/aread/awritewb/pwm/clock/mode> ...\n"
|
||||
" gpio readall/reset\n"
|
||||
" gpio unexportall/exports\n"
|
||||
" gpio export/edge/unexport ...\n"
|
||||
" gpio wfi <pin> <mode>\n"
|
||||
" gpio drive <group> <value>\n"
|
||||
" gpio pwm-bal/pwm-ms \n"
|
||||
" gpio pwmr <range> \n"
|
||||
" gpio pwmc <divider> \n"
|
||||
" gpio load spi/i2c\n"
|
||||
" gpio i2cd/i2cdetect\n"
|
||||
" gpio gbr <channel>\n"
|
||||
" gpio gbw <channel> <value>" ; // No trailing newline needed here.
|
||||
|
||||
|
@ -195,6 +205,37 @@ static void doLoad (int argc, char *argv [])
|
|||
}
|
||||
|
||||
|
||||
/*
|
||||
* doI2Cdetect:
|
||||
* Run the i2cdetect command with the right runes for this Pi revision
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void doI2Cdetect (int argc, char *argv [])
|
||||
{
|
||||
int port = piBoardRev () == 1 ? 0 : 1 ;
|
||||
char command [128] ;
|
||||
struct stat statBuf ;
|
||||
|
||||
if (stat (I2CDETECT, &statBuf) < 0)
|
||||
{
|
||||
fprintf (stderr, "%s: Unable to find i2cdetect command: %s\n", argv [0], strerror (errno)) ;
|
||||
return ;
|
||||
}
|
||||
|
||||
if (!moduleLoaded ("i2c_dev"))
|
||||
{
|
||||
fprintf (stderr, "%s: The I2C kernel module(s) are not loaded.\n", argv [0]) ;
|
||||
return ;
|
||||
}
|
||||
|
||||
sprintf (command, "%s -y %d", I2CDETECT, port) ;
|
||||
if (system (command) < 0)
|
||||
fprintf (stderr, "%s: Unable to run i2cdetect: %s\n", argv [0], strerror (errno)) ;
|
||||
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doReadall:
|
||||
* Read all the GPIO pins
|
||||
|
@ -215,27 +256,39 @@ static char *alts [] =
|
|||
"IN ", "OUT ", "ALT5", "ALT4", "ALT0", "ALT1", "ALT2", "ALT3"
|
||||
} ;
|
||||
|
||||
static int wpiToPhys [64] =
|
||||
{
|
||||
11, 12, 13, 15, 16, 18, 22, 7, // 0...7
|
||||
3, 5, // 8...9
|
||||
24, 26, 19, 21, 23, // 10..14
|
||||
8, 10, // 15..16
|
||||
3, 4, 5, 6, // 17..20
|
||||
0,0,0,0,0,0,0,0,0,0,0, // 20..31
|
||||
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 32..47
|
||||
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, // 47..63
|
||||
} ;
|
||||
|
||||
static void doReadall (void)
|
||||
{
|
||||
int pin ;
|
||||
|
||||
printf ("+----------+------+--------+------+-------+\n") ;
|
||||
printf ("| wiringPi | GPIO | Name | Mode | Value |\n") ;
|
||||
printf ("+----------+------+--------+------+-------+\n") ;
|
||||
printf ("+----------+-Rev%d-+------+--------+------+-------+\n", piBoardRev ()) ;
|
||||
printf ("| wiringPi | GPIO | Phys | Name | Mode | Value |\n") ;
|
||||
printf ("+----------+------+------+--------+------+-------+\n") ;
|
||||
|
||||
for (pin = 0 ; pin < 64 ; ++pin)
|
||||
for (pin = 0 ; pin < 64 ; ++pin) // Crude, but effective
|
||||
{
|
||||
if (wpiPinToGpio (pin) == -1)
|
||||
continue ;
|
||||
|
||||
printf ("| %6d | %3d | %s | %s | %s |\n",
|
||||
pin, wpiPinToGpio (pin),
|
||||
printf ("| %6d | %3d | %3d | %s | %s | %s |\n",
|
||||
pin, wpiPinToGpio (pin), wpiToPhys [pin],
|
||||
pinNames [pin],
|
||||
alts [getAlt (pin)],
|
||||
digitalRead (pin) == HIGH ? "High" : "Low ") ;
|
||||
}
|
||||
|
||||
printf ("+----------+------+--------+------+-------+\n") ;
|
||||
printf ("+----------+------+------+--------+------+-------+\n") ;
|
||||
}
|
||||
|
||||
|
||||
|
@ -252,9 +305,7 @@ static void doExports (int argc, char *argv [])
|
|||
char fName [128] ;
|
||||
char buf [16] ;
|
||||
|
||||
// Rather crude, but who knows what others are up to...
|
||||
|
||||
for (first = 0, i = 0 ; i < 64 ; ++i)
|
||||
for (first = 0, i = 0 ; i < 64 ; ++i) // Crude, but effective
|
||||
{
|
||||
|
||||
// Try to read the direction
|
||||
|
@ -386,6 +437,52 @@ void doExport (int argc, char *argv [])
|
|||
}
|
||||
|
||||
|
||||
/*
|
||||
* doWfi:
|
||||
* gpio wfi pin mode
|
||||
* Wait for Interrupt on a given pin.
|
||||
* Slight cheat here - it's easier to actually use ISR now (which calls
|
||||
* gpio to set the pin modes!) then we simply sleep, and expect the thread
|
||||
* to exit the program. Crude but effective.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void wfi (void)
|
||||
{ exit (0) ; }
|
||||
|
||||
void doWfi (int argc, char *argv [])
|
||||
{
|
||||
int pin, mode ;
|
||||
|
||||
if (argc != 4)
|
||||
{
|
||||
fprintf (stderr, "Usage: %s wfi pin mode\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
pin = atoi (argv [2]) ;
|
||||
|
||||
/**/ if (strcasecmp (argv [3], "rising") == 0) mode = INT_EDGE_RISING ;
|
||||
else if (strcasecmp (argv [3], "falling") == 0) mode = INT_EDGE_FALLING ;
|
||||
else if (strcasecmp (argv [3], "both") == 0) mode = INT_EDGE_BOTH ;
|
||||
else
|
||||
{
|
||||
fprintf (stderr, "%s: wfi: Invalid mode: %s. Should be rising, falling or both\n", argv [1], argv [3]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
if (wiringPiISR (pin, mode, &wfi) < 0)
|
||||
{
|
||||
fprintf (stderr, "%s: wfi: Unable to setup ISR: %s\n", argv [1], strerror (errno)) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
for (;;)
|
||||
delay (9999) ;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* doEdge:
|
||||
* gpio edge pin mode
|
||||
|
@ -499,7 +596,7 @@ void doUnexport (int argc, char *argv [])
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void doUnexportall (int argc, char *argv [])
|
||||
void doUnexportall (char *progName)
|
||||
{
|
||||
FILE *fd ;
|
||||
int pin ;
|
||||
|
@ -508,7 +605,7 @@ void doUnexportall (int argc, char *argv [])
|
|||
{
|
||||
if ((fd = fopen ("/sys/class/gpio/unexport", "w")) == NULL)
|
||||
{
|
||||
fprintf (stderr, "%s: Unable to open GPIO export interface\n", argv [0]) ;
|
||||
fprintf (stderr, "%s: Unable to open GPIO export interface\n", progName) ;
|
||||
exit (1) ;
|
||||
}
|
||||
fprintf (fd, "%d\n", pin) ;
|
||||
|
@ -517,6 +614,30 @@ void doUnexportall (int argc, char *argv [])
|
|||
}
|
||||
|
||||
|
||||
/*
|
||||
* doReset:
|
||||
* Reset the GPIO pins - as much as we can do
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void doReset (char *progName)
|
||||
{
|
||||
int pin ;
|
||||
|
||||
doUnexportall (progName) ;
|
||||
|
||||
for (pin = 0 ; pin < 64 ; ++pin)
|
||||
{
|
||||
if (wpiPinToGpio (pin) == -1)
|
||||
continue ;
|
||||
|
||||
digitalWrite (pin, LOW) ;
|
||||
pinMode (pin, INPUT) ;
|
||||
pullUpDnControl (pin, PUD_OFF) ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doMode:
|
||||
* gpio mode pin mode ...
|
||||
|
@ -536,9 +657,6 @@ void doMode (int argc, char *argv [])
|
|||
|
||||
pin = atoi (argv [2]) ;
|
||||
|
||||
if ((wpMode == WPI_MODE_PINS) && ((pin < 0) || (pin >= NUM_PINS)))
|
||||
return ;
|
||||
|
||||
mode = argv [3] ;
|
||||
|
||||
/**/ if (strcasecmp (mode, "in") == 0) pinMode (pin, INPUT) ;
|
||||
|
@ -604,7 +722,7 @@ static void doGbw (int argc, char *argv [])
|
|||
|
||||
if (argc != 4)
|
||||
{
|
||||
fprintf (stderr, "Usage: %s gbr <channel> <value>\n", argv [0]) ;
|
||||
fprintf (stderr, "Usage: %s gbw <channel> <value>\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
|
@ -613,23 +731,23 @@ static void doGbw (int argc, char *argv [])
|
|||
|
||||
if ((channel < 0) || (channel > 1))
|
||||
{
|
||||
fprintf (stderr, "%s: channel must be 0 or 1\n", argv [0]) ;
|
||||
fprintf (stderr, "%s: gbw: Channel number must be 0 or 1\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
if ((value < 0) || (value > 1023))
|
||||
{
|
||||
fprintf (stderr, "%s: value must be from 0 to 255\n", argv [0]) ;
|
||||
fprintf (stderr, "%s: gbw: Value must be from 0 to 255\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
if (gertboardSPISetup () == -1)
|
||||
if (gertboardAnalogSetup (64) < 0)
|
||||
{
|
||||
fprintf (stderr, "Unable to initialise the Gertboard SPI interface: %s\n", strerror (errno)) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
gertboardAnalogWrite (channel, value) ;
|
||||
analogWrite (64 + channel, value) ;
|
||||
}
|
||||
|
||||
|
||||
|
@ -654,21 +772,20 @@ static void doGbr (int argc, char *argv [])
|
|||
|
||||
if ((channel < 0) || (channel > 1))
|
||||
{
|
||||
fprintf (stderr, "%s: channel must be 0 or 1\n", argv [0]) ;
|
||||
fprintf (stderr, "%s: gbr: Channel number must be 0 or 1\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
if (gertboardSPISetup () == -1)
|
||||
if (gertboardAnalogSetup (64) < 0)
|
||||
{
|
||||
fprintf (stderr, "Unable to initialise the Gertboard SPI interface: %s\n", strerror (errno)) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
printf ("%d\n",gertboardAnalogRead (channel)) ;
|
||||
printf ("%d\n", analogRead (64 + channel)) ;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* doWrite:
|
||||
* gpio write pin value
|
||||
|
@ -687,9 +804,6 @@ static void doWrite (int argc, char *argv [])
|
|||
|
||||
pin = atoi (argv [2]) ;
|
||||
|
||||
if ((wpMode == WPI_MODE_PINS) && ((pin < 0) || (pin >= NUM_PINS)))
|
||||
return ;
|
||||
|
||||
/**/ if ((strcasecmp (argv [3], "up") == 0) || (strcasecmp (argv [3], "on") == 0))
|
||||
val = 1 ;
|
||||
else if ((strcasecmp (argv [3], "down") == 0) || (strcasecmp (argv [3], "off") == 0))
|
||||
|
@ -703,6 +817,31 @@ static void doWrite (int argc, char *argv [])
|
|||
digitalWrite (pin, HIGH) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doAwriterite:
|
||||
* gpio awrite pin value
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void doAwrite (int argc, char *argv [])
|
||||
{
|
||||
int pin, val ;
|
||||
|
||||
if (argc != 4)
|
||||
{
|
||||
fprintf (stderr, "Usage: %s awrite pin value\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
pin = atoi (argv [2]) ;
|
||||
|
||||
val = atoi (argv [3]) ;
|
||||
|
||||
analogWrite (pin, val) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doWriteByte:
|
||||
* gpio write value
|
||||
|
@ -742,19 +881,57 @@ void doRead (int argc, char *argv [])
|
|||
}
|
||||
|
||||
pin = atoi (argv [2]) ;
|
||||
|
||||
if ((wpMode == WPI_MODE_PINS) && ((pin < 0) || (pin >= NUM_PINS)))
|
||||
{
|
||||
printf ("0\n") ;
|
||||
return ;
|
||||
}
|
||||
|
||||
val = digitalRead (pin) ;
|
||||
|
||||
printf ("%s\n", val == 0 ? "0" : "1") ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doAread:
|
||||
* Read an analog pin and return the value
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void doAread (int argc, char *argv [])
|
||||
{
|
||||
int pin, val ;
|
||||
|
||||
if (argc != 3)
|
||||
{
|
||||
fprintf (stderr, "Usage: %s aread pin\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
pin = atoi (argv [2]) ;
|
||||
|
||||
val = analogRead (pin) ;
|
||||
|
||||
printf ("%s\n", val == 0 ? "0" : "1") ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doToggle:
|
||||
* Toggle an IO pin
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void doToggle (int argc, char *argv [])
|
||||
{
|
||||
int pin ;
|
||||
|
||||
if (argc != 3)
|
||||
{
|
||||
fprintf (stderr, "Usage: %s toggle pin\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
pin = atoi (argv [2]) ;
|
||||
|
||||
digitalWrite (pin, !digitalRead (pin)) ;
|
||||
}
|
||||
|
||||
/*
|
||||
* doClock:
|
||||
* Output a clock on a pin
|
||||
|
@ -773,9 +950,6 @@ void doClock (int argc, char *argv [])
|
|||
|
||||
pin = atoi (argv [2]) ;
|
||||
|
||||
if ((wpMode == WPI_MODE_PINS) && ((pin < 0) || (pin >= NUM_PINS)))
|
||||
return ;
|
||||
|
||||
freq = atoi (argv [3]) ;
|
||||
|
||||
gpioClockSet (pin, freq) ;
|
||||
|
@ -800,9 +974,6 @@ void doPwm (int argc, char *argv [])
|
|||
|
||||
pin = atoi (argv [2]) ;
|
||||
|
||||
if ((wpMode == WPI_MODE_PINS) && ((pin < 0) || (pin >= NUM_PINS)))
|
||||
return ;
|
||||
|
||||
val = atoi (argv [3]) ;
|
||||
|
||||
pwmWrite (pin, val) ;
|
||||
|
@ -885,16 +1056,34 @@ int main (int argc, char *argv [])
|
|||
return 1 ;
|
||||
}
|
||||
|
||||
// Help
|
||||
|
||||
if (strcasecmp (argv [1], "-h") == 0)
|
||||
{
|
||||
printf ("%s: %s\n", argv [0], usage) ;
|
||||
return 0 ;
|
||||
}
|
||||
|
||||
if (strcasecmp (argv [1], "-v") == 0)
|
||||
// Sort of a special:
|
||||
|
||||
if (strcmp (argv [1], "-R") == 0)
|
||||
{
|
||||
printf ("%d\n", piBoardRev ()) ;
|
||||
return 0 ;
|
||||
}
|
||||
|
||||
// Version & Warranty
|
||||
|
||||
if (strcmp (argv [1], "-V") == 0)
|
||||
{
|
||||
printf ("%d\n", piBoardRev ()) ;
|
||||
return 0 ;
|
||||
}
|
||||
|
||||
if (strcmp (argv [1], "-v") == 0)
|
||||
{
|
||||
printf ("gpio version: %s\n", VERSION) ;
|
||||
printf ("Copyright (c) 2012 Gordon Henderson\n") ;
|
||||
printf ("Copyright (c) 2012-2013 Gordon Henderson\n") ;
|
||||
printf ("This is free software with ABSOLUTELY NO WARRANTY.\n") ;
|
||||
printf ("For details type: %s -warranty\n", argv [0]) ;
|
||||
printf ("\n") ;
|
||||
|
@ -905,7 +1094,7 @@ int main (int argc, char *argv [])
|
|||
if (strcasecmp (argv [1], "-warranty") == 0)
|
||||
{
|
||||
printf ("gpio version: %s\n", VERSION) ;
|
||||
printf ("Copyright (c) 2012 Gordon Henderson\n") ;
|
||||
printf ("Copyright (c) 2012-2013 Gordon Henderson\n") ;
|
||||
printf ("\n") ;
|
||||
printf (" This program is free software; you can redistribute it and/or modify\n") ;
|
||||
printf (" it under the terms of the GNU Leser General Public License as published\n") ;
|
||||
|
@ -934,8 +1123,8 @@ int main (int argc, char *argv [])
|
|||
/**/ if (strcasecmp (argv [1], "exports" ) == 0) { doExports (argc, argv) ; return 0 ; }
|
||||
else if (strcasecmp (argv [1], "export" ) == 0) { doExport (argc, argv) ; return 0 ; }
|
||||
else if (strcasecmp (argv [1], "edge" ) == 0) { doEdge (argc, argv) ; return 0 ; }
|
||||
else if (strcasecmp (argv [1], "unexportall") == 0) { doUnexportall (argc, argv) ; return 0 ; }
|
||||
else if (strcasecmp (argv [1], "unexport" ) == 0) { doUnexport (argc, argv) ; return 0 ; }
|
||||
else if (strcasecmp (argv [1], "unexportall") == 0) { doUnexportall (argv [0]) ; return 0 ; }
|
||||
|
||||
// Check for load command:
|
||||
|
||||
|
@ -948,13 +1137,9 @@ int main (int argc, char *argv [])
|
|||
|
||||
// Check for -g argument
|
||||
|
||||
if (strcasecmp (argv [1], "-g") == 0)
|
||||
/**/ if (strcasecmp (argv [1], "-g") == 0)
|
||||
{
|
||||
if (wiringPiSetupGpio () == -1)
|
||||
{
|
||||
fprintf (stderr, "%s: Unable to initialise GPIO mode.\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
wiringPiSetupGpio () ;
|
||||
|
||||
for (i = 2 ; i < argc ; ++i)
|
||||
argv [i - 1] = argv [i] ;
|
||||
|
@ -962,15 +1147,23 @@ int main (int argc, char *argv [])
|
|||
wpMode = WPI_MODE_GPIO ;
|
||||
}
|
||||
|
||||
// Check for -1 argument
|
||||
|
||||
else if (strcasecmp (argv [1], "-1") == 0)
|
||||
{
|
||||
wiringPiSetupPhys () ;
|
||||
|
||||
for (i = 2 ; i < argc ; ++i)
|
||||
argv [i - 1] = argv [i] ;
|
||||
--argc ;
|
||||
wpMode = WPI_MODE_PHYS ;
|
||||
}
|
||||
|
||||
// Check for -p argument for PiFace
|
||||
|
||||
else if (strcasecmp (argv [1], "-p") == 0)
|
||||
{
|
||||
if (wiringPiSetupPiFaceForGpioProg () == -1)
|
||||
{
|
||||
fprintf (stderr, "%s: Unable to initialise PiFace.\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
piFaceSetup (200) ;
|
||||
|
||||
for (i = 2 ; i < argc ; ++i)
|
||||
argv [i - 1] = argv [i] ;
|
||||
|
@ -982,38 +1175,65 @@ int main (int argc, char *argv [])
|
|||
|
||||
else
|
||||
{
|
||||
if (wiringPiSetup () == -1)
|
||||
{
|
||||
fprintf (stderr, "%s: Unable to initialise wiringPi mode\n", argv [0]) ;
|
||||
exit (1) ;
|
||||
}
|
||||
wiringPiSetup () ;
|
||||
wpMode = WPI_MODE_PINS ;
|
||||
}
|
||||
|
||||
// Check for PWM or Pad Drive operations
|
||||
// Check for -x argument to load in a new extension
|
||||
|
||||
if (wpMode != WPI_MODE_PIFACE)
|
||||
if (strcasecmp (argv [1], "-x") == 0)
|
||||
{
|
||||
if (strcasecmp (argv [1], "pwm-bal") == 0) { doPwmMode (PWM_MODE_BAL) ; return 0 ; }
|
||||
if (strcasecmp (argv [1], "pwm-ms") == 0) { doPwmMode (PWM_MODE_MS) ; return 0 ; }
|
||||
if (strcasecmp (argv [1], "pwmr") == 0) { doPwmRange (argc, argv) ; return 0 ; }
|
||||
if (strcasecmp (argv [1], "pwmc") == 0) { doPwmClock (argc, argv) ; return 0 ; }
|
||||
if (strcasecmp (argv [1], "drive") == 0) { doPadDrive (argc, argv) ; return 0 ; }
|
||||
if (argc < 3)
|
||||
{
|
||||
fprintf (stderr, "%s: -x missing extension specification.\n", argv [0]) ;
|
||||
exit (EXIT_FAILURE) ;
|
||||
}
|
||||
|
||||
if (!doExtension (argv [0], argv [2])) // Prints its own error messages
|
||||
exit (EXIT_FAILURE) ;
|
||||
|
||||
for (i = 3 ; i < argc ; ++i)
|
||||
argv [i - 2] = argv [i] ;
|
||||
argc -= 2 ;
|
||||
}
|
||||
|
||||
// Check for wiring commands
|
||||
if (argc <= 1)
|
||||
{
|
||||
fprintf (stderr, "%s: no command given\n", argv [0]) ;
|
||||
exit (EXIT_FAILURE) ;
|
||||
}
|
||||
|
||||
/**/ if (strcasecmp (argv [1], "readall" ) == 0) doReadall () ;
|
||||
else if (strcasecmp (argv [1], "read" ) == 0) doRead (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "write") == 0) doWrite (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "wb") == 0) doWriteByte (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "pwm" ) == 0) doPwm (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "clock") == 0) doClock (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "mode" ) == 0) doMode (argc, argv) ;
|
||||
// Core wiringPi functions
|
||||
|
||||
/**/ if (strcasecmp (argv [1], "mode" ) == 0) doMode (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "read" ) == 0) doRead (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "write" ) == 0) doWrite (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "pwm" ) == 0) doPwm (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "awrite" ) == 0) doAwrite (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "aread" ) == 0) doAread (argc, argv) ;
|
||||
|
||||
// GPIO Nicies
|
||||
|
||||
else if (strcasecmp (argv [1], "toggle" ) == 0) doToggle (argc, argv) ;
|
||||
|
||||
// Pi Specifics
|
||||
|
||||
else if (strcasecmp (argv [1], "pwm-bal" ) == 0) doPwmMode (PWM_MODE_BAL) ;
|
||||
else if (strcasecmp (argv [1], "pwm-ms" ) == 0) doPwmMode (PWM_MODE_MS) ;
|
||||
else if (strcasecmp (argv [1], "pwmr" ) == 0) doPwmRange (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "pwmc" ) == 0) doPwmClock (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "drive" ) == 0) doPadDrive (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "readall" ) == 0) doReadall () ;
|
||||
else if (strcasecmp (argv [1], "i2cdetect") == 0) doI2Cdetect (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "i2cd" ) == 0) doI2Cdetect (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "reset" ) == 0) doReset (argv [0]) ;
|
||||
else if (strcasecmp (argv [1], "wb" ) == 0) doWriteByte (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "clock" ) == 0) doClock (argc, argv) ;
|
||||
else if (strcasecmp (argv [1], "wfi" ) == 0) doWfi (argc, argv) ;
|
||||
else
|
||||
{
|
||||
fprintf (stderr, "%s: Unknown command: %s.\n", argv [0], argv [1]) ;
|
||||
exit (1) ;
|
||||
exit (EXIT_FAILURE) ;
|
||||
}
|
||||
return 0 ;
|
||||
}
|
||||
|
|
|
@ -0,0 +1,193 @@
|
|||
#!/bin/bash
|
||||
#
|
||||
# pintest
|
||||
# Test the Pi's GPIO port
|
||||
# Copyright (c) 2013 Gordon Henderson
|
||||
#################################################################################
|
||||
# This file is part of wiringPi:
|
||||
# Wiring Compatable library for the Raspberry Pi
|
||||
#
|
||||
# wiringPi is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU Lesser General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# wiringPi is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU Lesser General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU Lesser General Public License
|
||||
# along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
#################################################################################
|
||||
|
||||
|
||||
# logErr pin, expected got
|
||||
################################################################################
|
||||
|
||||
logErr ()
|
||||
{
|
||||
if [ $errs = 0 ]; then
|
||||
echo ""
|
||||
fi
|
||||
echo " --> Pin $1 failure. Expected $2, got $3"
|
||||
let errs+=1
|
||||
}
|
||||
|
||||
|
||||
# printErrorCount
|
||||
################################################################################
|
||||
|
||||
printErrCount()
|
||||
{
|
||||
if [ $errs = 0 ]; then
|
||||
echo "No faults detected."
|
||||
elif [ $errs = 1 ]; then
|
||||
echo "One fault detected."
|
||||
else
|
||||
echo "$errs faults detected"
|
||||
fi
|
||||
}
|
||||
|
||||
|
||||
# testPins start end
|
||||
################################################################################
|
||||
|
||||
testPins()
|
||||
{
|
||||
start=$1
|
||||
end=$2
|
||||
errs=0
|
||||
|
||||
printf "%30s %2d:%2d: " "$3" $1 $2
|
||||
|
||||
# Set range to inputs
|
||||
|
||||
for i in `seq $start $end`; do
|
||||
gpio mode $i in
|
||||
done
|
||||
|
||||
# Enable internal pull-ups and expect to read high
|
||||
|
||||
for i in `seq $start $end`; do
|
||||
gpio mode $i up
|
||||
if [ `gpio read $i` = 0 ]; then
|
||||
logErr $i 1 0
|
||||
fi
|
||||
done
|
||||
|
||||
# Enable internal pull-downs and expect to read low
|
||||
|
||||
for i in `seq $start $end`; do
|
||||
gpio mode $i down
|
||||
if [ `gpio read $i` = 1 ]; then
|
||||
echo "Pin $i failure - expected 0, got 1"
|
||||
let errs+=1
|
||||
fi
|
||||
done
|
||||
|
||||
# Remove the internal pull up/downs
|
||||
|
||||
for i in `seq $start $end`; do
|
||||
gpio mode $i tri
|
||||
done
|
||||
|
||||
if [ $errs = 0 ]; then
|
||||
echo " OK"
|
||||
else
|
||||
printErrCount
|
||||
fi
|
||||
|
||||
let totErrs+=errs
|
||||
}
|
||||
|
||||
|
||||
intro()
|
||||
{
|
||||
revision=`gpio -V`
|
||||
cat <<EOF
|
||||
PinTest
|
||||
=======
|
||||
|
||||
This is a simple utility to test the GPIO pins on your revision $revision
|
||||
Raspberry Pi.
|
||||
|
||||
NOTE: All GPIO peripherals must be removed to perform this test. This
|
||||
includes serial, I2C and SPI connections. You may get incorrect results
|
||||
if something is connected and it interferes with the test.
|
||||
|
||||
This test can only test the input side of things. It uses the internal
|
||||
pull-up and pull-down resistors to simulate inputs. It does not test
|
||||
the output drivers.
|
||||
|
||||
You will need to reboot your Pi after this test if you wish to use the
|
||||
serial port as it will be left in GPIO mode rather than serial mode.
|
||||
|
||||
Please make sure everything is removed and press the ENTER key to continue,
|
||||
EOF
|
||||
|
||||
echo -n "or Control-C to abort... "
|
||||
read a
|
||||
}
|
||||
|
||||
|
||||
# Start here
|
||||
################################################################################
|
||||
|
||||
intro
|
||||
gpio unexportall
|
||||
gpio reset
|
||||
|
||||
errs=0
|
||||
totErrs=0
|
||||
|
||||
echo ""
|
||||
|
||||
# Main pins
|
||||
|
||||
testPins 0 7 "The main 8 GPIO pins"
|
||||
|
||||
# P5 pins, if a rev 2:
|
||||
|
||||
if [ $revision = 2 ]; then
|
||||
testPins 17 20 "The 4 pins on the P5 connector"
|
||||
fi
|
||||
|
||||
# SPI
|
||||
|
||||
testPins 10 14 "The 5 SPI pins"
|
||||
|
||||
# Serial
|
||||
|
||||
testPins 15 16 "The serial pins"
|
||||
|
||||
# I2C - Needs somewhat different testing
|
||||
# due to the on-board pull-up's
|
||||
|
||||
echo -n " The I2C pins 8: 9: "
|
||||
errs=0
|
||||
gpio mode 8 in
|
||||
gpio mode 9 in
|
||||
|
||||
if [ `gpio read 8` = 0 ]; then
|
||||
echo "Pin 8 failure - expected 1, got 0"
|
||||
let errs+=1
|
||||
fi
|
||||
|
||||
if [ `gpio read 9` = 0 ]; then
|
||||
echo "Pin 9 failure - expected 1, got 0"
|
||||
let errs+=1
|
||||
fi
|
||||
|
||||
if [ $errs = 0 ]; then
|
||||
echo " OK"
|
||||
else
|
||||
printErrCount
|
||||
fi
|
||||
|
||||
echo ""
|
||||
if [ $totErrs != 0 ]; then
|
||||
echo ""
|
||||
echo "Faults detected! Output of 'readall':"
|
||||
gpio readall
|
||||
fi
|
|
@ -0,0 +1,18 @@
|
|||
|
||||
SRC = pins.tex
|
||||
|
||||
|
||||
all: ${SRC}
|
||||
@echo Generating DVI
|
||||
@latex pins.tex
|
||||
|
||||
pins.dvi: pins.tex
|
||||
@latex pins.tex
|
||||
|
||||
pdf: pins.dvi
|
||||
@dvipdf pins.dvi
|
||||
|
||||
|
||||
.PHONEY: clean
|
||||
clean:
|
||||
@rm -f *.dvi *.aux *.log *.ps *.toc *.bak *~
|
Binary file not shown.
|
@ -0,0 +1,116 @@
|
|||
\documentclass[12pt,a4paper]{article}
|
||||
\parskip 1ex
|
||||
\parindent 0em
|
||||
\thispagestyle{empty}
|
||||
\pagestyle{plain}
|
||||
\pagenumbering{arabic}
|
||||
\setlength{\topmargin}{0pt}
|
||||
\setlength{\headheight}{0pt}
|
||||
\setlength{\headsep}{0pt}
|
||||
\setlength{\topskip}{0pt}
|
||||
\setlength{\textheight}{240mm}
|
||||
\setlength{\footskip}{5ex}
|
||||
\setlength{\oddsidemargin}{0pt}
|
||||
\setlength{\evensidemargin}{0pt}
|
||||
\setlength{\textwidth}{160mm}
|
||||
\usepackage[dvips]{graphics,color}
|
||||
\usepackage{helvet}
|
||||
\renewcommand{\familydefault}{\sfdefault}
|
||||
\begin{document}
|
||||
\begin{sffamily}
|
||||
\definecolor{rtb-black}{rgb} {0.0, 0.0, 0.0}
|
||||
\definecolor{rtb-navy}{rgb} {0.0, 0.0, 0.5}
|
||||
\definecolor{rtb-green}{rgb} {0.0, 0.5, 0.0}
|
||||
\definecolor{rtb-teal}{rgb} {0.0, 0.5, 0.5}
|
||||
\definecolor{rtb-maroon}{rgb} {0.5, 0.0, 0.0}
|
||||
\definecolor{rtb-purple}{rgb} {0.5, 0.0, 0.5}
|
||||
\definecolor{rtb-olive}{rgb} {0.5, 0.5, 0.0}
|
||||
\definecolor{rtb-silver}{rgb} {0.7, 0.7, 0.7}
|
||||
\definecolor{rtb-grey}{rgb} {0.5, 0.5, 0.5}
|
||||
\definecolor{rtb-blue}{rgb} {0.0, 0.0, 1.0}
|
||||
\definecolor{rtb-lime}{rgb} {0.0, 1.0, 0.0}
|
||||
\definecolor{rtb-aqua}{rgb} {0.0, 1.0, 1.0}
|
||||
\definecolor{rtb-red}{rgb} {1.0, 0.0, 0.0}
|
||||
\definecolor{rtb-fuchsia}{rgb}{1.0, 0.0, 1.0}
|
||||
\definecolor{rtb-yellow}{rgb} {1.0, 1.0, 0.0}
|
||||
\definecolor{rtb-white}{rgb} {1.0, 1.0, 1.0}
|
||||
|
||||
\begin{center}
|
||||
\bfseries{WiringPi: GPIO Pin Numbering Tables}\\
|
||||
\tt{http://wiringpi.com/}
|
||||
\end{center}
|
||||
|
||||
\begin{center}
|
||||
\begin{tabular}{|c|c|c||p{8mm}|p{8mm}||c|c|c|c|}
|
||||
\hline
|
||||
\multicolumn{8}{|c|}{\bfseries{P1: The Main GPIO connector}}\\
|
||||
\hline
|
||||
\hline
|
||||
WiringPi Pin & BCM GPIO & Name & \multicolumn{2}{|c||}{Header} & Name & BCM GPIO & WiringPi Pin\\
|
||||
\hline
|
||||
\hline
|
||||
& & \textcolor{rtb-red}{3.3v} & \raggedleft{1} & 2 & \textcolor{rtb-maroon}{5v} & & \\
|
||||
\hline
|
||||
8 & Rv1:0 - Rv2:2 & \textcolor{rtb-aqua}{SDA} & \raggedleft{3} & 4 & \textcolor{rtb-maroon}{5v} & & \\
|
||||
\hline
|
||||
9 & Rv1:1 - Rv2:3 & \textcolor{rtb-aqua}{SCL} & \raggedleft{5} & 6 & \textcolor{rtb-black}{0v} & & \\
|
||||
\hline
|
||||
7 & 4 & \textcolor{rtb-green}{GPIO7} & \raggedleft{7} & 8 & \textcolor{rtb-yellow}{TxD} & 14 & 15\\
|
||||
\hline
|
||||
& & \textcolor{rtb-black}{0v} & \raggedleft{9} & 10 & \textcolor{rtb-yellow}{RxD} & 15 & 16\\
|
||||
\hline
|
||||
0 & 17 & \textcolor{rtb-green}{GPIO0} & \raggedleft{11} & 12 & \textcolor{rtb-green}{GPIO1} & 18 & 1\\
|
||||
\hline
|
||||
2 & Rv1:21 - Rv2:27 & \textcolor{rtb-green}{GPIO2} & \raggedleft{13} & 14 & \textcolor{rtb-black}{0v} & & \\
|
||||
\hline
|
||||
3 & 22 & \textcolor{rtb-green}{GPIO3} & \raggedleft{15} & 16 & \textcolor{rtb-green}{GPIO4} & 23 & 4\\
|
||||
\hline
|
||||
& & \textcolor{rtb-red}{3.3v} & \raggedleft{17} & 18 & \textcolor{rtb-green}{GPIO5} & 24 & 5\\
|
||||
\hline
|
||||
12 & 10 & \textcolor{rtb-teal}{MOSI} & \raggedleft{19} & 20 & \textcolor{rtb-black}{0v} & & \\
|
||||
\hline
|
||||
13 & 9 & \textcolor{rtb-teal}{MISO} & \raggedleft{21} & 22 & \textcolor{rtb-green}{GPIO6} & 25 & 6\\
|
||||
\hline
|
||||
14 & 11 & \textcolor{rtb-teal}{SCLK} & \raggedleft{23} & 24 & \textcolor{rtb-teal}{CE0} & 8 & 10\\
|
||||
\hline
|
||||
& & \textcolor{rtb-black}{0v} & \raggedleft{25} & 26 & \textcolor{rtb-teal}{CE1} & 7 & 11\\
|
||||
\hline
|
||||
\hline
|
||||
WiringPi Pin & BCM GPIO & Name & \multicolumn{2}{|c||}{Header} & Name & BCM GPIO & WiringPi Pin\\
|
||||
\hline
|
||||
\end{tabular}
|
||||
\end{center}
|
||||
|
||||
Note the differences between Revision 1 and Revision 2 Raspberry
|
||||
Pi's. The Revision 2 is readily identifiable by the presence of the 2
|
||||
mounting holes.
|
||||
|
||||
The revision 2 Raspberry Pi has an additional GPIO connector, P5, which is next to the main P1 GPIO
|
||||
connector:
|
||||
|
||||
\begin{center}
|
||||
\begin{tabular}{|c|c|c||p{8mm}|p{8mm}||c|c|c|c|}
|
||||
\hline
|
||||
\multicolumn{8}{|c|}{\bfseries{P5: Secondary GPIO connector (Rev. 2 Pi only)}}\\
|
||||
\hline
|
||||
\hline
|
||||
WiringPi Pin & BCM GPIO & Name & \multicolumn{2}{|c||}{Header} & Name & BCM GPIO & WiringPi Pin\\
|
||||
\hline
|
||||
\hline
|
||||
& & \textcolor{rtb-maroon}{5v} & \raggedleft{1} & 2 & \textcolor{rtb-red}{3.3v} & & \\
|
||||
\hline
|
||||
17 & 28 & \textcolor{rtb-green}{GPIO8} & \raggedleft{3} & 4 & \textcolor{rtb-green}{GPIO9} & 29 & 18 \\
|
||||
\hline
|
||||
19 & 30 & \textcolor{rtb-green}{GPIO10} & \raggedleft{5} & 6 & \textcolor{rtb-green}{GPIO11} & 31 & 20 \\
|
||||
\hline
|
||||
& & \textcolor{rtb-black}{0v} & \raggedleft{7} & 8 & \textcolor{rtb-black}{0v} & & \\
|
||||
\hline
|
||||
\hline
|
||||
WiringPi Pin & BCM GPIO & Name & \multicolumn{2}{|c||}{Header} & Name & BCM GPIO & WiringPi Pin\\
|
||||
\hline
|
||||
\end{tabular}
|
||||
\end{center}
|
||||
|
||||
|
||||
\end{sffamily}
|
||||
\end{document}
|
|
@ -21,7 +21,7 @@
|
|||
# along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
||||
#################################################################################
|
||||
|
||||
DYN_VERS_MAJ=1
|
||||
DYN_VERS_MAJ=2
|
||||
DYN_VERS_MIN=0
|
||||
|
||||
VERSION=$(DYN_VERS_MAJ).$(DYN_VERS_MIN)
|
||||
|
@ -35,26 +35,25 @@ DYNAMIC=libwiringPi.so.$(VERSION)
|
|||
DEBUG = -O2
|
||||
CC = gcc
|
||||
INCLUDE = -I.
|
||||
CFLAGS = $(DEBUG) -Wall $(INCLUDE) -Winline -pipe -fPIC
|
||||
CFLAGS = $(DEBUG) -Wformat=2 -Wall $(INCLUDE) -Winline -pipe -fPIC
|
||||
|
||||
LIBS =
|
||||
|
||||
# Should not alter anything below this line
|
||||
###############################################################################
|
||||
|
||||
SRC = wiringPi.c wiringPiFace.c wiringSerial.c wiringShift.c \
|
||||
gertboard.c \
|
||||
piNes.c \
|
||||
lcd.c piHiPri.c piThread.c \
|
||||
wiringPiSPI.c \
|
||||
softPwm.c softServo.c softTone.c
|
||||
|
||||
SRC_I2C = wiringPiI2C.c
|
||||
SRC = wiringPi.c \
|
||||
wiringSerial.c wiringShift.c \
|
||||
piHiPri.c piThread.c \
|
||||
wiringPiSPI.c wiringPiI2C.c \
|
||||
softPwm.c softTone.c \
|
||||
mcp23s08.c mcp23008.c \
|
||||
mcp23s17.c mcp23017.c sr595.c pcf8574.c \
|
||||
mcp3002.c mcp4802.c mcp3422.c \
|
||||
drc.c
|
||||
|
||||
OBJ = $(SRC:.c=.o)
|
||||
|
||||
OBJ_I2C = $(SRC_I2C:.c=.o)
|
||||
|
||||
all: $(DYNAMIC)
|
||||
|
||||
static: $(STATIC)
|
||||
|
@ -67,11 +66,7 @@ $(STATIC): $(OBJ)
|
|||
|
||||
$(DYNAMIC): $(OBJ)
|
||||
@echo "[Link (Dynamic)]"
|
||||
@$(CC) -shared -Wl,-soname,libwiringPi.so.1 -o libwiringPi.so.1.0 -lpthread $(OBJ)
|
||||
|
||||
i2c: $(OBJ) $(OBJ_I2C)
|
||||
@echo "[Link (Dynamic + I2C)]"
|
||||
@$(CC) -shared -Wl,-soname,libwiringPi.so.1 -o libwiringPi.so.1.0 -lpthread $(OBJ) $(OBJ_I2C)
|
||||
@$(CC) -shared -Wl,-soname,libwiringPi.so -o libwiringPi.so.$(VERSION) -lpthread $(OBJ)
|
||||
|
||||
.c.o:
|
||||
@echo [Compile] $<
|
||||
|
@ -79,37 +74,48 @@ i2c: $(OBJ) $(OBJ_I2C)
|
|||
|
||||
.PHONEY: clean
|
||||
clean:
|
||||
rm -f $(OBJ) $(OBJ_I2C) *~ core tags Makefile.bak libwiringPi.*
|
||||
@echo "[Clean]"
|
||||
@rm -f $(OBJ) $(OBJ_I2C) *~ core tags Makefile.bak libwiringPi.*
|
||||
|
||||
.PHONEY: tags
|
||||
tags: $(SRC)
|
||||
@echo [ctags]
|
||||
@ctags $(SRC)
|
||||
|
||||
.PHONEY: install
|
||||
install: $(DYNAMIC)
|
||||
@echo "[Install]"
|
||||
@install -m 0755 -d $(DESTDIR)$(PREFIX)/lib
|
||||
|
||||
.PHONEY: install-headers
|
||||
install-headers:
|
||||
@echo "[Install Headers]"
|
||||
@install -m 0755 -d $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 wiringPi.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 wiringSerial.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 wiringShift.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 gertboard.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 piNes.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 softPwm.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 softServo.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 softTone.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 lcd.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 wiringPiSPI.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 wiringPiI2C.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0755 libwiringPi.so.$(VERSION) $(DESTDIR)$(PREFIX)/lib
|
||||
@ln -sf $(DESTDIR)$(PREFIX)/lib/libwiringPi.so.$(VERSION) $(DESTDIR)/lib/libwiringPi.so
|
||||
@ln -sf $(DESTDIR)$(PREFIX)/lib/libwiringPi.so.$(VERSION) $(DESTDIR)/lib/libwiringPi.so.1
|
||||
@install -m 0644 mcp23008.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 mcp23017.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 mcp23s08.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 mcp23s17.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 mcp3002.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 mcp4802.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 mcp3422.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 sr595.h $(DESTDIR)$(PREFIX)/include
|
||||
@install -m 0644 pcf8574.h $(DESTDIR)$(PREFIX)/include
|
||||
|
||||
.PHONEY: install
|
||||
install: $(DYNAMIC) install-headers
|
||||
@echo "[Install Dynamic Lib]"
|
||||
@install -m 0755 -d $(DESTDIR)$(PREFIX)/lib
|
||||
@install -m 0755 libwiringPi.so.$(VERSION) $(DESTDIR)$(PREFIX)/lib/libwiringPi.so.$(VERSION)
|
||||
@ln -sf $(DESTDIR)$(PREFIX)/lib/libwiringPi.so.$(VERSION) $(DESTDIR)/lib/libwiringPi.so
|
||||
@ldconfig
|
||||
|
||||
.PHONEY: install-static
|
||||
install-static: $(STATIC)
|
||||
@echo "[Install Static]"
|
||||
install-static: $(STATIC) install-headers
|
||||
@echo "[Install Static Lib]"
|
||||
@install -m 0755 -d $(DESTDIR)$(PREFIX)/lib
|
||||
@install -m 0755 libwiringPi.a $(DESTDIR)$(PREFIX)/lib
|
||||
|
||||
.PHONEY: uninstall
|
||||
|
@ -118,14 +124,19 @@ uninstall:
|
|||
@rm -f $(DESTDIR)$(PREFIX)/include/wiringPi.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/wiringSerial.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/wiringShift.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/gertboard.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/piNes.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/softPwm.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/softServo.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/softTone.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/lcd.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/wiringPiSPI.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/wiringPiI2C.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/mcp23008.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/mcp23017.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/mcp23s08.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/mcp23s17.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/mcp3002.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/mcp4802.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/mcp3422.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/sr595.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/include/pcf8574.h
|
||||
@rm -f $(DESTDIR)$(PREFIX)/lib/libwiringPi.*
|
||||
@ldconfig
|
||||
|
||||
|
@ -137,16 +148,21 @@ depend:
|
|||
# DO NOT DELETE
|
||||
|
||||
wiringPi.o: wiringPi.h
|
||||
wiringPiFace.o: wiringPi.h
|
||||
wiringSerial.o: wiringSerial.h
|
||||
wiringShift.o: wiringPi.h wiringShift.h
|
||||
gertboard.o: wiringPiSPI.h gertboard.h
|
||||
piNes.o: wiringPi.h piNes.h
|
||||
lcd.o: wiringPi.h lcd.h
|
||||
piHiPri.o: wiringPi.h
|
||||
piThread.o: wiringPi.h
|
||||
wiringPiSPI.o: wiringPiSPI.h
|
||||
softPwm.o: wiringPi.h softPwm.h
|
||||
softServo.o: wiringPi.h softServo.h
|
||||
softTone.o: wiringPi.h softTone.h
|
||||
wiringPiSPI.o: wiringPi.h wiringPiSPI.h
|
||||
wiringPiI2C.o: wiringPi.h wiringPiI2C.h
|
||||
softPwm.o: wiringPi.h softPwm.h
|
||||
softTone.o: wiringPi.h softTone.h
|
||||
mcp23s08.o: wiringPi.h wiringPiSPI.h mcp23x0817.h mcp23s08.h
|
||||
mcp23008.o: wiringPi.h wiringPiI2C.h mcp23x0817.h mcp23008.h
|
||||
mcp23s17.o: wiringPi.h wiringPiSPI.h mcp23x0817.h mcp23s17.h
|
||||
mcp23017.o: wiringPi.h wiringPiI2C.h mcp23x0817.h mcp23017.h
|
||||
sr595.o: wiringPi.h sr595.h
|
||||
pcf8574.o: wiringPi.h wiringPiI2C.h pcf8574.h
|
||||
mcp3002.o: wiringPi.h wiringPiSPI.h mcp3002.h
|
||||
mcp4802.o: wiringPi.h wiringPiSPI.h mcp4802.h
|
||||
mcp3422.o: wiringPi.h wiringPiI2C.h mcp3422.h
|
||||
drc.o: wiringPi.h wiringSerial.h drc.h
|
||||
|
|
|
@ -1,9 +0,0 @@
|
|||
|
||||
WiringPi: An implementation of most of the Arduino Wiring
|
||||
functions for the Raspberry Pi,
|
||||
along with many more features and libraries to support
|
||||
hardware, etc. on the Raspberry Pi
|
||||
|
||||
Full details at:
|
||||
https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
|
|
@ -0,0 +1,203 @@
|
|||
/*
|
||||
* drc.c:
|
||||
* Extend wiringPi with the DRC control protocll to Arduino
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <time.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
|
||||
#include "wiringPi.h"
|
||||
#include "wiringSerial.h"
|
||||
|
||||
#include "drc.h"
|
||||
|
||||
#ifndef TRUE
|
||||
# define TRUE (1==1)
|
||||
# define FALSE (1==2)
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
* myPinMode:
|
||||
* Change the pin mode on the remote DRC device
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPinMode (struct wiringPiNodeStruct *node, int pin, int mode)
|
||||
{
|
||||
/**/ if (mode == OUTPUT)
|
||||
serialPutchar (node->fd, 'o') ; // Input
|
||||
else if (mode == PWM_OUTPUT)
|
||||
serialPutchar (node->fd, 'p') ; // PWM
|
||||
else
|
||||
serialPutchar (node->fd, 'i') ; // Default to input
|
||||
|
||||
serialPutchar (node->fd, pin - node->pinBase) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myPullUpDnControl:
|
||||
* ATmegas only have pull-up's on of off. No pull-downs.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPullUpDnControl (struct wiringPiNodeStruct *node, int pin, int mode)
|
||||
{
|
||||
|
||||
// Force pin into input mode
|
||||
|
||||
serialPutchar (node->fd, 'i' ) ;
|
||||
serialPutchar (node->fd, pin) ;
|
||||
|
||||
/**/ if (mode == PUD_UP)
|
||||
{
|
||||
serialPutchar (node->fd, '1') ;
|
||||
serialPutchar (node->fd, pin - node->pinBase) ;
|
||||
}
|
||||
else if (mode == PUD_OFF)
|
||||
{
|
||||
serialPutchar (node->fd, '0') ;
|
||||
serialPutchar (node->fd, pin - node->pinBase) ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalWrite:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myDigitalWrite (struct wiringPiNodeStruct *node, int pin, int value)
|
||||
{
|
||||
serialPutchar (node->fd, value == 0 ? '0' : '1') ;
|
||||
serialPutchar (node->fd, pin - node->pinBase) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myPwmWrite:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPwmWrite (struct wiringPiNodeStruct *node, int pin, int value)
|
||||
{
|
||||
serialPutchar (node->fd, 'v') ;
|
||||
serialPutchar (node->fd, pin - node->pinBase) ;
|
||||
serialPutchar (node->fd, value & 0xFF) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myAnalogRead:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int myAnalogRead (struct wiringPiNodeStruct *node, int pin)
|
||||
{
|
||||
int vHi, vLo ;
|
||||
|
||||
serialPutchar (node->fd, 'a') ;
|
||||
serialPutchar (node->fd, pin - node->pinBase) ;
|
||||
vHi = serialGetchar (node->fd) ;
|
||||
vLo = serialGetchar (node->fd) ;
|
||||
|
||||
return (vHi << 8) | vLo ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalRead:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int myDigitalRead (struct wiringPiNodeStruct *node, int pin)
|
||||
{
|
||||
serialPutchar (node->fd, 'r') ; // Send read command
|
||||
serialPutchar (node->fd, pin - node->pinBase) ;
|
||||
return (serialGetchar (node->fd) == '0') ? 0 : 1 ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* drcSetup:
|
||||
* Create a new instance of an DRC GPIO interface.
|
||||
* Could be a variable nunber of pins here - we might not know in advance
|
||||
* if it's an ATmega with 14 pins, or something with less or more!
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int drcSetup (const int pinBase, const int numPins, const char *device)
|
||||
{
|
||||
int fd ;
|
||||
int ok, tries ;
|
||||
time_t then ;
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
if ((fd = serialOpen (device, 115200)) < 0)
|
||||
return wiringPiFailure (WPI_ALMOST, "Unable to open DRC device (%s): %s", device, strerror (errno)) ;
|
||||
|
||||
delay (10) ; // May need longer if it's an Uno that reboots on the open...
|
||||
|
||||
// Flush any pending input
|
||||
|
||||
while (serialDataAvail (fd))
|
||||
(void)serialGetchar (fd) ;
|
||||
|
||||
ok = FALSE ;
|
||||
for (tries = 1 ; tries < 5 ; ++tries)
|
||||
{
|
||||
serialPutchar (fd, '@') ;
|
||||
then = time (NULL) + 2 ;
|
||||
while (time (NULL) < then)
|
||||
if (serialDataAvail (fd))
|
||||
{
|
||||
if (serialGetchar (fd) == '@')
|
||||
{
|
||||
ok = TRUE ;
|
||||
break ;
|
||||
}
|
||||
}
|
||||
if (ok)
|
||||
break ;
|
||||
}
|
||||
|
||||
if (!ok)
|
||||
{
|
||||
serialClose (fd) ;
|
||||
return wiringPiFailure (WPI_FATAL, "Unable to communidate with DRC device") ;
|
||||
}
|
||||
|
||||
node = wiringPiNewNode (pinBase, numPins) ;
|
||||
|
||||
node->fd = fd ;
|
||||
node->pinMode = myPinMode ;
|
||||
node->pullUpDnControl = myPullUpDnControl ;
|
||||
node->analogRead = myAnalogRead ;
|
||||
node->digitalRead = myDigitalRead ;
|
||||
node->digitalWrite = myDigitalWrite ;
|
||||
node->pwmWrite = myPwmWrite ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,34 @@
|
|||
/*
|
||||
* drc.h:
|
||||
* Extend wiringPi with the DRC control protocll to Arduino
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
int drcSetup (const int pinBase, const int numPins, const char *device) ;
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,149 @@
|
|||
/*
|
||||
* mcp23008.c:
|
||||
* Extend wiringPi with the MCP 23008 I2C GPIO expander chip
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <pthread.h>
|
||||
|
||||
#include "wiringPi.h"
|
||||
#include "wiringPiI2C.h"
|
||||
#include "mcp23x0817.h"
|
||||
|
||||
#include "mcp23008.h"
|
||||
|
||||
|
||||
/*
|
||||
* myPinMode:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPinMode (struct wiringPiNodeStruct *node, int pin, int mode)
|
||||
{
|
||||
int mask, old, reg ;
|
||||
|
||||
reg = MCP23x08_IODIR ;
|
||||
mask = 1 << (pin - node->pinBase) ;
|
||||
old = wiringPiI2CReadReg8 (node->fd, reg) ;
|
||||
|
||||
if (mode == OUTPUT)
|
||||
old &= (~mask) ;
|
||||
else
|
||||
old |= mask ;
|
||||
|
||||
wiringPiI2CWriteReg8 (node->fd, reg, old) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myPullUpDnControl:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPullUpDnControl (struct wiringPiNodeStruct *node, int pin, int mode)
|
||||
{
|
||||
int mask, old, reg ;
|
||||
|
||||
reg = MCP23x08_GPPU ;
|
||||
mask = 1 << (pin - node->pinBase) ;
|
||||
|
||||
old = wiringPiI2CReadReg8 (node->fd, reg) ;
|
||||
|
||||
if (mode == PUD_UP)
|
||||
old |= mask ;
|
||||
else
|
||||
old &= (~mask) ;
|
||||
|
||||
wiringPiI2CWriteReg8 (node->fd, reg, old) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalWrite:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myDigitalWrite (struct wiringPiNodeStruct *node, int pin, int value)
|
||||
{
|
||||
int bit, old ;
|
||||
|
||||
bit = 1 << ((pin - node->pinBase) & 7) ;
|
||||
|
||||
old = node->data2 ;
|
||||
if (value == LOW)
|
||||
old &= (~bit) ;
|
||||
else
|
||||
old |= bit ;
|
||||
|
||||
wiringPiI2CWriteReg8 (node->fd, MCP23x08_GPIO, old) ;
|
||||
node->data2 = old ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalRead:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int myDigitalRead (struct wiringPiNodeStruct *node, int pin)
|
||||
{
|
||||
int mask, value ;
|
||||
|
||||
mask = 1 << ((pin - node->pinBase) & 7) ;
|
||||
value = wiringPiI2CReadReg8 (node->fd, MCP23x08_GPIO) ;
|
||||
|
||||
if ((value & mask) == 0)
|
||||
return LOW ;
|
||||
else
|
||||
return HIGH ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* mcp23008Setup:
|
||||
* Create a new instance of an MCP23008 I2C GPIO interface. We know it
|
||||
* has 8 pins, so all we need to know here is the I2C address and the
|
||||
* user-defined pin base.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int mcp23008Setup (const int pinBase, const int i2cAddress)
|
||||
{
|
||||
int fd ;
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
if ((fd = wiringPiI2CSetup (i2cAddress)) < 0)
|
||||
return fd ;
|
||||
|
||||
wiringPiI2CWriteReg8 (fd, MCP23x08_IOCON, IOCON_INIT) ;
|
||||
|
||||
node = wiringPiNewNode (pinBase, 8) ;
|
||||
|
||||
node->fd = fd ;
|
||||
node->pinMode = myPinMode ;
|
||||
node->pullUpDnControl = myPullUpDnControl ;
|
||||
node->digitalRead = myDigitalRead ;
|
||||
node->digitalWrite = myDigitalWrite ;
|
||||
node->data2 = wiringPiI2CReadReg8 (fd, MCP23x08_OLAT) ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,33 @@
|
|||
/*
|
||||
* 23008.h:
|
||||
* Extend wiringPi with the MCP 23008 I2C GPIO expander chip
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int mcp23008Setup (const int pinBase, const int i2cAddress) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,195 @@
|
|||
/*
|
||||
* mcp23017.c:
|
||||
* Extend wiringPi with the MCP 23017 I2C GPIO expander chip
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <pthread.h>
|
||||
|
||||
#include "wiringPi.h"
|
||||
#include "wiringPiI2C.h"
|
||||
#include "mcp23x0817.h"
|
||||
|
||||
#include "mcp23017.h"
|
||||
|
||||
|
||||
/*
|
||||
* myPinMode:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPinMode (struct wiringPiNodeStruct *node, int pin, int mode)
|
||||
{
|
||||
int mask, old, reg ;
|
||||
|
||||
pin -= node->pinBase ;
|
||||
|
||||
if (pin < 8) // Bank A
|
||||
reg = MCP23x17_IODIRA ;
|
||||
else
|
||||
{
|
||||
reg = MCP23x17_IODIRB ;
|
||||
pin &= 0x07 ;
|
||||
}
|
||||
|
||||
mask = 1 << pin ;
|
||||
old = wiringPiI2CReadReg8 (node->fd, reg) ;
|
||||
|
||||
if (mode == OUTPUT)
|
||||
old &= (~mask) ;
|
||||
else
|
||||
old |= mask ;
|
||||
|
||||
wiringPiI2CWriteReg8 (node->fd, reg, old) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myPullUpDnControl:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPullUpDnControl (struct wiringPiNodeStruct *node, int pin, int mode)
|
||||
{
|
||||
int mask, old, reg ;
|
||||
|
||||
pin -= node->pinBase ;
|
||||
|
||||
if (pin < 8) // Bank A
|
||||
reg = MCP23x17_GPPUA ;
|
||||
else
|
||||
{
|
||||
reg = MCP23x17_GPPUB ;
|
||||
pin &= 0x07 ;
|
||||
}
|
||||
|
||||
mask = 1 << pin ;
|
||||
old = wiringPiI2CReadReg8 (node->fd, reg) ;
|
||||
|
||||
if (mode == PUD_UP)
|
||||
old |= mask ;
|
||||
else
|
||||
old &= (~mask) ;
|
||||
|
||||
wiringPiI2CWriteReg8 (node->fd, reg, old) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalWrite:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myDigitalWrite (struct wiringPiNodeStruct *node, int pin, int value)
|
||||
{
|
||||
int bit, old ;
|
||||
|
||||
pin -= node->pinBase ; // Pin now 0-15
|
||||
|
||||
bit = 1 << (pin & 7) ;
|
||||
|
||||
if (pin < 8) // Bank A
|
||||
{
|
||||
old = node->data2 ;
|
||||
|
||||
if (value == LOW)
|
||||
old &= (~bit) ;
|
||||
else
|
||||
old |= bit ;
|
||||
|
||||
wiringPiI2CWriteReg8 (node->fd, MCP23x17_GPIOA, old) ;
|
||||
node->data2 = old ;
|
||||
}
|
||||
else // Bank B
|
||||
{
|
||||
old = node->data3 ;
|
||||
|
||||
if (value == LOW)
|
||||
old &= (~bit) ;
|
||||
else
|
||||
old |= bit ;
|
||||
|
||||
wiringPiI2CWriteReg8 (node->fd, MCP23x17_GPIOB, old) ;
|
||||
node->data3 = old ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalRead:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int myDigitalRead (struct wiringPiNodeStruct *node, int pin)
|
||||
{
|
||||
int mask, value, gpio ;
|
||||
|
||||
pin -= node->pinBase ;
|
||||
|
||||
if (pin < 8) // Bank A
|
||||
gpio = MCP23x17_GPIOA ;
|
||||
else
|
||||
{
|
||||
gpio = MCP23x17_GPIOB ;
|
||||
pin &= 0x07 ;
|
||||
}
|
||||
|
||||
mask = 1 << pin ;
|
||||
value = wiringPiI2CReadReg8 (node->fd, gpio) ;
|
||||
|
||||
if ((value & mask) == 0)
|
||||
return LOW ;
|
||||
else
|
||||
return HIGH ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* mcp23017Setup:
|
||||
* Create a new instance of an MCP23017 I2C GPIO interface. We know it
|
||||
* has 16 pins, so all we need to know here is the I2C address and the
|
||||
* user-defined pin base.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int mcp23017Setup (const int pinBase, const int i2cAddress)
|
||||
{
|
||||
int fd ;
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
if ((fd = wiringPiI2CSetup (i2cAddress)) < 0)
|
||||
return fd ;
|
||||
|
||||
wiringPiI2CWriteReg8 (fd, MCP23x17_IOCON, IOCON_INIT) ;
|
||||
|
||||
node = wiringPiNewNode (pinBase, 16) ;
|
||||
|
||||
node->fd = fd ;
|
||||
node->pinMode = myPinMode ;
|
||||
node->pullUpDnControl = myPullUpDnControl ;
|
||||
node->digitalRead = myDigitalRead ;
|
||||
node->digitalWrite = myDigitalWrite ;
|
||||
node->data2 = wiringPiI2CReadReg8 (fd, MCP23x17_OLATA) ;
|
||||
node->data3 = wiringPiI2CReadReg8 (fd, MCP23x17_OLATB) ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,33 @@
|
|||
/*
|
||||
* 23017.h:
|
||||
* Extend wiringPi with the MCP 23017 I2C GPIO expander chip
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int mcp23017Setup (const int pinBase, const int i2cAddress) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,189 @@
|
|||
/*
|
||||
* mcp23s08.c:
|
||||
* Extend wiringPi with the MCP 23s08 SPI GPIO expander chip
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include "wiringPi.h"
|
||||
#include "wiringPiSPI.h"
|
||||
#include "mcp23x0817.h"
|
||||
|
||||
#include "mcp23s08.h"
|
||||
|
||||
#define MCP_SPEED 4000000
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* writeByte:
|
||||
* Write a byte to a register on the MCP23s08 on the SPI bus.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void writeByte (uint8_t spiPort, uint8_t devId, uint8_t reg, uint8_t data)
|
||||
{
|
||||
uint8_t spiData [4] ;
|
||||
|
||||
spiData [0] = CMD_WRITE | ((devId & 7) << 1) ;
|
||||
spiData [1] = reg ;
|
||||
spiData [2] = data ;
|
||||
|
||||
wiringPiSPIDataRW (spiPort, spiData, 3) ;
|
||||
}
|
||||
|
||||
/*
|
||||
* readByte:
|
||||
* Read a byte from a register on the MCP23s08 on the SPI bus.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static uint8_t readByte (uint8_t spiPort, uint8_t devId, uint8_t reg)
|
||||
{
|
||||
uint8_t spiData [4] ;
|
||||
|
||||
spiData [0] = CMD_READ | ((devId & 7) << 1) ;
|
||||
spiData [1] = reg ;
|
||||
|
||||
wiringPiSPIDataRW (spiPort, spiData, 3) ;
|
||||
|
||||
return spiData [2] ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myPinMode:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPinMode (struct wiringPiNodeStruct *node, int pin, int mode)
|
||||
{
|
||||
int mask, old, reg ;
|
||||
|
||||
reg = MCP23x08_IODIR ;
|
||||
mask = 1 << (pin - node->pinBase) ;
|
||||
old = readByte (node->data0, node->data1, reg) ;
|
||||
|
||||
if (mode == OUTPUT)
|
||||
old &= (~mask) ;
|
||||
else
|
||||
old |= mask ;
|
||||
|
||||
writeByte (node->data0, node->data1, reg, old) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myPullUpDnControl:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPullUpDnControl (struct wiringPiNodeStruct *node, int pin, int mode)
|
||||
{
|
||||
int mask, old, reg ;
|
||||
|
||||
reg = MCP23x08_GPPU ;
|
||||
mask = 1 << (pin - node->pinBase) ;
|
||||
|
||||
old = readByte (node->data0, node->data1, reg) ;
|
||||
|
||||
if (mode == PUD_UP)
|
||||
old |= mask ;
|
||||
else
|
||||
old &= (~mask) ;
|
||||
|
||||
writeByte (node->data0, node->data1, reg, old) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalWrite:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myDigitalWrite (struct wiringPiNodeStruct *node, int pin, int value)
|
||||
{
|
||||
int bit, old ;
|
||||
|
||||
bit = 1 << ((pin - node->pinBase) & 7) ;
|
||||
|
||||
old = node->data2 ;
|
||||
if (value == LOW)
|
||||
old &= (~bit) ;
|
||||
else
|
||||
old |= bit ;
|
||||
|
||||
writeByte (node->data0, node->data1, MCP23x08_GPIO, old) ;
|
||||
node->data2 = old ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalRead:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int myDigitalRead (struct wiringPiNodeStruct *node, int pin)
|
||||
{
|
||||
int mask, value ;
|
||||
|
||||
mask = 1 << ((pin - node->pinBase) & 7) ;
|
||||
value = readByte (node->data0, node->data1, MCP23x08_GPIO) ;
|
||||
|
||||
if ((value & mask) == 0)
|
||||
return LOW ;
|
||||
else
|
||||
return HIGH ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* mcp23s08Setup:
|
||||
* Create a new instance of an MCP23s08 SPI GPIO interface. We know it
|
||||
* has 8 pins, so all we need to know here is the SPI address and the
|
||||
* user-defined pin base.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int mcp23s08Setup (const int pinBase, const int spiPort, const int devId)
|
||||
{
|
||||
int x ;
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
if ((x = wiringPiSPISetup (spiPort, MCP_SPEED)) < 0)
|
||||
return x ;
|
||||
|
||||
writeByte (spiPort, devId, MCP23x08_IOCON, IOCON_INIT) ;
|
||||
|
||||
node = wiringPiNewNode (pinBase, 8) ;
|
||||
|
||||
node->data0 = spiPort ;
|
||||
node->data1 = devId ;
|
||||
node->pinMode = myPinMode ;
|
||||
node->pullUpDnControl = myPullUpDnControl ;
|
||||
node->digitalRead = myDigitalRead ;
|
||||
node->digitalWrite = myDigitalWrite ;
|
||||
node->data2 = readByte (spiPort, devId, MCP23x08_OLAT) ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,33 @@
|
|||
/*
|
||||
* 23s08.h:
|
||||
* Extend wiringPi with the MCP 23s08 SPI GPIO expander chip
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int mcp23s08Setup (const int pinBase, const int spiPort, const int devId) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,236 @@
|
|||
/*
|
||||
* mcp23s17.c:
|
||||
* Extend wiringPi with the MCP 23s17 SPI GPIO expander chip
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include "wiringPi.h"
|
||||
#include "wiringPiSPI.h"
|
||||
#include "mcp23x0817.h"
|
||||
|
||||
#include "mcp23s17.h"
|
||||
|
||||
#define MCP_SPEED 4000000
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* writeByte:
|
||||
* Write a byte to a register on the MCP23s17 on the SPI bus.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void writeByte (uint8_t spiPort, uint8_t devId, uint8_t reg, uint8_t data)
|
||||
{
|
||||
uint8_t spiData [4] ;
|
||||
|
||||
spiData [0] = CMD_WRITE | ((devId & 7) << 1) ;
|
||||
spiData [1] = reg ;
|
||||
spiData [2] = data ;
|
||||
|
||||
wiringPiSPIDataRW (spiPort, spiData, 3) ;
|
||||
}
|
||||
|
||||
/*
|
||||
* readByte:
|
||||
* Read a byte from a register on the MCP23s17 on the SPI bus.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static uint8_t readByte (uint8_t spiPort, uint8_t devId, uint8_t reg)
|
||||
{
|
||||
uint8_t spiData [4] ;
|
||||
|
||||
spiData [0] = CMD_READ | ((devId & 7) << 1) ;
|
||||
spiData [1] = reg ;
|
||||
|
||||
wiringPiSPIDataRW (spiPort, spiData, 3) ;
|
||||
|
||||
return spiData [2] ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myPinMode:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPinMode (struct wiringPiNodeStruct *node, int pin, int mode)
|
||||
{
|
||||
int mask, old, reg ;
|
||||
|
||||
pin -= node->pinBase ;
|
||||
|
||||
if (pin < 8) // Bank A
|
||||
reg = MCP23x17_IODIRA ;
|
||||
else
|
||||
{
|
||||
reg = MCP23x17_IODIRB ;
|
||||
pin &= 0x07 ;
|
||||
}
|
||||
|
||||
mask = 1 << pin ;
|
||||
old = readByte (node->data0, node->data1, reg) ;
|
||||
|
||||
if (mode == OUTPUT)
|
||||
old &= (~mask) ;
|
||||
else
|
||||
old |= mask ;
|
||||
|
||||
writeByte (node->data0, node->data1, reg, old) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myPullUpDnControl:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPullUpDnControl (struct wiringPiNodeStruct *node, int pin, int mode)
|
||||
{
|
||||
int mask, old, reg ;
|
||||
|
||||
pin -= node->pinBase ;
|
||||
|
||||
if (pin < 8) // Bank A
|
||||
reg = MCP23x17_GPPUA ;
|
||||
else
|
||||
{
|
||||
reg = MCP23x17_GPPUB ;
|
||||
pin &= 0x07 ;
|
||||
}
|
||||
|
||||
mask = 1 << pin ;
|
||||
old = readByte (node->data0, node->data1, reg) ;
|
||||
|
||||
if (mode == PUD_UP)
|
||||
old |= mask ;
|
||||
else
|
||||
old &= (~mask) ;
|
||||
|
||||
writeByte (node->data0, node->data1, reg, old) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalWrite:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myDigitalWrite (struct wiringPiNodeStruct *node, int pin, int value)
|
||||
{
|
||||
int bit, old ;
|
||||
|
||||
pin -= node->pinBase ; // Pin now 0-15
|
||||
|
||||
bit = 1 << (pin & 7) ;
|
||||
|
||||
if (pin < 8) // Bank A
|
||||
{
|
||||
old = node->data2 ;
|
||||
|
||||
if (value == LOW)
|
||||
old &= (~bit) ;
|
||||
else
|
||||
old |= bit ;
|
||||
|
||||
writeByte (node->data0, node->data1, MCP23x17_GPIOA, old) ;
|
||||
node->data2 = old ;
|
||||
}
|
||||
else // Bank B
|
||||
{
|
||||
old = node->data3 ;
|
||||
|
||||
if (value == LOW)
|
||||
old &= (~bit) ;
|
||||
else
|
||||
old |= bit ;
|
||||
|
||||
writeByte (node->data0, node->data1, MCP23x17_GPIOB, old) ;
|
||||
node->data3 = old ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalRead:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int myDigitalRead (struct wiringPiNodeStruct *node, int pin)
|
||||
{
|
||||
int mask, value, gpio ;
|
||||
|
||||
pin -= node->pinBase ;
|
||||
|
||||
if (pin < 8) // Bank A
|
||||
gpio = MCP23x17_GPIOA ;
|
||||
else
|
||||
{
|
||||
gpio = MCP23x17_GPIOB ;
|
||||
pin &= 0x07 ;
|
||||
}
|
||||
|
||||
mask = 1 << pin ;
|
||||
value = readByte (node->data0, node->data1, gpio) ;
|
||||
|
||||
if ((value & mask) == 0)
|
||||
return LOW ;
|
||||
else
|
||||
return HIGH ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* mcp23s17Setup:
|
||||
* Create a new instance of an MCP23s17 SPI GPIO interface. We know it
|
||||
* has 16 pins, so all we need to know here is the SPI address and the
|
||||
* user-defined pin base.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int mcp23s17Setup (const int pinBase, const int spiPort, const int devId)
|
||||
{
|
||||
int x ;
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
if ((x = wiringPiSPISetup (spiPort, MCP_SPEED)) < 0)
|
||||
return x ;
|
||||
|
||||
writeByte (spiPort, devId, MCP23x17_IOCON, IOCON_INIT | IOCON_HAEN) ;
|
||||
writeByte (spiPort, devId, MCP23x17_IOCONB, IOCON_INIT | IOCON_HAEN) ;
|
||||
|
||||
node = wiringPiNewNode (pinBase, 16) ;
|
||||
|
||||
node->data0 = spiPort ;
|
||||
node->data1 = devId ;
|
||||
node->pinMode = myPinMode ;
|
||||
node->pullUpDnControl = myPullUpDnControl ;
|
||||
node->digitalRead = myDigitalRead ;
|
||||
node->digitalWrite = myDigitalWrite ;
|
||||
node->data2 = readByte (spiPort, devId, MCP23x17_OLATA) ;
|
||||
node->data3 = readByte (spiPort, devId, MCP23x17_OLATB) ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,33 @@
|
|||
/*
|
||||
* 23s17.h:
|
||||
* Extend wiringPi with the MCP 23s17 SPI GPIO expander chip
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int mcp23s17Setup (int pinBase, int spiPort, int devId) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,73 @@
|
|||
/*
|
||||
* mcp23x17:
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
*
|
||||
* Header file for code using the MCP23x17 GPIO expander chip.
|
||||
* This comes in 2 flavours: MCP23017 which has an I2C interface,
|
||||
* an the MXP23S17 which has an SPI interface.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
|
||||
// MCP23x17 Registers
|
||||
|
||||
#define IODIRA 0x00
|
||||
#define IPOLA 0x02
|
||||
#define GPINTENA 0x04
|
||||
#define DEFVALA 0x06
|
||||
#define INTCONA 0x08
|
||||
#define IOCON 0x0A
|
||||
#define GPPUA 0x0C
|
||||
#define INTFA 0x0E
|
||||
#define INTCAPA 0x10
|
||||
#define GPIOA 0x12
|
||||
#define OLATA 0x14
|
||||
|
||||
#define IODIRB 0x01
|
||||
#define IPOLB 0x03
|
||||
#define GPINTENB 0x05
|
||||
#define DEFVALB 0x07
|
||||
#define INTCONB 0x09
|
||||
#define IOCONB 0x0B
|
||||
#define GPPUB 0x0D
|
||||
#define INTFB 0x0F
|
||||
#define INTCAPB 0x11
|
||||
#define GPIOB 0x13
|
||||
#define OLATB 0x15
|
||||
|
||||
// Bits in the IOCON register
|
||||
|
||||
#define IOCON_UNUSED 0x01
|
||||
#define IOCON_INTPOL 0x02
|
||||
#define IOCON_ODR 0x04
|
||||
#define IOCON_HAEN 0x08
|
||||
#define IOCON_DISSLW 0x10
|
||||
#define IOCON_SEQOP 0x20
|
||||
#define IOCON_MIRROR 0x40
|
||||
#define IOCON_BANK_MODE 0x80
|
||||
|
||||
// Default initialisation mode
|
||||
|
||||
#define IOCON_INIT (IOCON_SEQOP)
|
||||
|
||||
// SPI Command codes
|
||||
|
||||
#define CMD_WRITE 0x40
|
||||
#define CMD_READ 0x41
|
|
@ -0,0 +1,87 @@
|
|||
/*
|
||||
* mcp23xxx:
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
*
|
||||
* Header file for code using the MCP23x08 and 17 GPIO expander
|
||||
* chips.
|
||||
* This comes in 2 flavours: MCP230xx (08/17) which has an I2C
|
||||
* interface, and the MXP23Sxx (08/17) which has an SPI interface.
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
// MCP23x08 Registers
|
||||
|
||||
#define MCP23x08_IODIR 0x00
|
||||
#define MCP23x08_IPOL 0x01
|
||||
#define MCP23x08_GPINTEN 0x02
|
||||
#define MCP23x08_DEFVAL 0x03
|
||||
#define MCP23x08_INTCON 0x04
|
||||
#define MCP23x08_IOCON 0x05
|
||||
#define MCP23x08_GPPU 0x06
|
||||
#define MCP23x08_INTF 0x07
|
||||
#define MCP23x08_INTCAP 0x08
|
||||
#define MCP23x08_GPIO 0x09
|
||||
#define MCP23x08_OLAT 0x0A
|
||||
|
||||
// MCP23x17 Registers
|
||||
|
||||
#define MCP23x17_IODIRA 0x00
|
||||
#define MCP23x17_IPOLA 0x02
|
||||
#define MCP23x17_GPINTENA 0x04
|
||||
#define MCP23x17_DEFVALA 0x06
|
||||
#define MCP23x17_INTCONA 0x08
|
||||
#define MCP23x17_IOCON 0x0A
|
||||
#define MCP23x17_GPPUA 0x0C
|
||||
#define MCP23x17_INTFA 0x0E
|
||||
#define MCP23x17_INTCAPA 0x10
|
||||
#define MCP23x17_GPIOA 0x12
|
||||
#define MCP23x17_OLATA 0x14
|
||||
|
||||
#define MCP23x17_IODIRB 0x01
|
||||
#define MCP23x17_IPOLB 0x03
|
||||
#define MCP23x17_GPINTENB 0x05
|
||||
#define MCP23x17_DEFVALB 0x07
|
||||
#define MCP23x17_INTCONB 0x09
|
||||
#define MCP23x17_IOCONB 0x0B
|
||||
#define MCP23x17_GPPUB 0x0D
|
||||
#define MCP23x17_INTFB 0x0F
|
||||
#define MCP23x17_INTCAPB 0x11
|
||||
#define MCP23x17_GPIOB 0x13
|
||||
#define MCP23x17_OLATB 0x15
|
||||
|
||||
// Bits in the IOCON register
|
||||
|
||||
#define IOCON_UNUSED 0x01
|
||||
#define IOCON_INTPOL 0x02
|
||||
#define IOCON_ODR 0x04
|
||||
#define IOCON_HAEN 0x08
|
||||
#define IOCON_DISSLW 0x10
|
||||
#define IOCON_SEQOP 0x20
|
||||
#define IOCON_MIRROR 0x40
|
||||
#define IOCON_BANK_MODE 0x80
|
||||
|
||||
// Default initialisation mode
|
||||
|
||||
#define IOCON_INIT (IOCON_SEQOP)
|
||||
|
||||
// SPI Command codes
|
||||
|
||||
#define CMD_WRITE 0x40
|
||||
#define CMD_READ 0x41
|
|
@ -0,0 +1,76 @@
|
|||
/*
|
||||
* mcp3002.c:
|
||||
* Extend wiringPi with the MCP3002 SPI Analog to Digital convertor
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <wiringPiSPI.h>
|
||||
|
||||
#include "mcp3002.h"
|
||||
|
||||
/*
|
||||
* myAnalogRead:
|
||||
* Return the analog value of the given pin
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int myAnalogRead (struct wiringPiNodeStruct *node, int pin)
|
||||
{
|
||||
unsigned char spiData [2] ;
|
||||
unsigned char chanBits ;
|
||||
int chan = pin - node->pinBase ;
|
||||
|
||||
if (chan == 0)
|
||||
chanBits = 0b11010000 ;
|
||||
else
|
||||
chanBits = 0b11110000 ;
|
||||
|
||||
spiData [0] = chanBits ;
|
||||
spiData [1] = 0 ;
|
||||
|
||||
wiringPiSPIDataRW (node->fd, spiData, 2) ;
|
||||
|
||||
return ((spiData [0] << 7) | (spiData [1] >> 1)) & 0x3FF ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* mcp3002Setup:
|
||||
* Create a new wiringPi device node for an mcp2003 on the Pi's
|
||||
* SPI interface.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int mcp3002Setup (const int pinBase, int spiChannel)
|
||||
{
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
if (wiringPiSPISetup (spiChannel, 1000000) < 0)
|
||||
return -1 ;
|
||||
|
||||
node = wiringPiNewNode (pinBase, 2) ;
|
||||
|
||||
node->fd = spiChannel ;
|
||||
node->analogRead = myAnalogRead ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,33 @@
|
|||
/*
|
||||
* mcp3002.c:
|
||||
* Extend wiringPi with the MCP3002 SPI Analog to Digital convertor
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int mcp3002Setup (int pinBase, int spiChannel) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,116 @@
|
|||
/*
|
||||
* mcp3422.c:
|
||||
* Extend wiringPi with the MCP3422 I2C ADC chip
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <linux/spi/spidev.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <wiringPiI2C.h>
|
||||
|
||||
#include "mcp3422.h"
|
||||
|
||||
|
||||
/*
|
||||
* myAnalogRead:
|
||||
* Read a channel from the device
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int myAnalogRead (struct wiringPiNodeStruct *node, int chan)
|
||||
{
|
||||
unsigned char config, b0, b1, b2, b3 ;
|
||||
int value = 0 ;
|
||||
|
||||
// One-shot mode, trigger plus the other configs.
|
||||
|
||||
config = 0x80 | ((chan - node->pinBase) << 5) | (node->data0 << 2) | (node->data1) ;
|
||||
|
||||
wiringPiI2CWrite (node->fd, config) ;
|
||||
|
||||
switch (node->data0) // Sample rate
|
||||
{
|
||||
case MCP3422_SR_3_75: // 18 bits
|
||||
delay (270) ;
|
||||
b0 = wiringPiI2CRead (node->fd) ;
|
||||
b1 = wiringPiI2CRead (node->fd) ;
|
||||
b2 = wiringPiI2CRead (node->fd) ;
|
||||
b3 = wiringPiI2CRead (node->fd) ;
|
||||
value = ((b0 & 3) << 16) | (b1 << 8) | b2 ;
|
||||
break ;
|
||||
|
||||
case MCP3422_SR_15: // 16 bits
|
||||
delay ( 70) ;
|
||||
b0 = wiringPiI2CRead (node->fd) ;
|
||||
b1 = wiringPiI2CRead (node->fd) ;
|
||||
b2 = wiringPiI2CRead (node->fd) ;
|
||||
value = (b0 << 8) | b1 ;
|
||||
break ;
|
||||
|
||||
case MCP3422_SR_60: // 14 bits
|
||||
delay ( 17) ;
|
||||
b0 = wiringPiI2CRead (node->fd) ;
|
||||
b1 = wiringPiI2CRead (node->fd) ;
|
||||
b2 = wiringPiI2CRead (node->fd) ;
|
||||
value = ((b0 & 0x3F) << 8) | b1 ;
|
||||
break ;
|
||||
|
||||
case MCP3422_SR_240: // 12 bits
|
||||
delay ( 5) ;
|
||||
b0 = wiringPiI2CRead (node->fd) ;
|
||||
b1 = wiringPiI2CRead (node->fd) ;
|
||||
b2 = wiringPiI2CRead (node->fd) ;
|
||||
value = ((b0 & 0x0F) << 8) | b1 ;
|
||||
break ;
|
||||
}
|
||||
|
||||
return value ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* mcp3422Setup:
|
||||
* Create a new wiringPi device node for the mcp3422
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int mcp3422Setup (int pinBase, int i2cAddress, int channels, int sampleRate, int gain)
|
||||
{
|
||||
int fd ;
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
if ((fd = wiringPiI2CSetup (i2cAddress)) < 0)
|
||||
return fd ;
|
||||
|
||||
node = wiringPiNewNode (pinBase, channels) ;
|
||||
|
||||
node->data0 = sampleRate ;
|
||||
node->data1 = gain ;
|
||||
node->analogRead = myAnalogRead ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,43 @@
|
|||
/*
|
||||
* mcp3422.c:
|
||||
* Extend wiringPi with the MCP3422 I2C ADC chip
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#define MCP3422_SR_3_75 0
|
||||
#define MCP3422_SR_15 1
|
||||
#define MCP3422_SR_60 2
|
||||
#define MCP3422_SR_240 3
|
||||
|
||||
#define MCP3422_GAIN_1 0
|
||||
#define MCP3422_GAIN_2 1
|
||||
#define MCP3422_GAIN_4 2
|
||||
#define MCP3422_GAIN_8 3
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int mcp3422Setup (int pinBase, int i2cAddress, int channels, int sampleRate, int gain) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,76 @@
|
|||
/*
|
||||
* mcp4802.c:
|
||||
* Extend wiringPi with the MCP4802 SPI Digital to Analog convertor
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <wiringPiSPI.h>
|
||||
|
||||
#include "mcp4802.h"
|
||||
|
||||
/*
|
||||
* myAnalogWrite:
|
||||
* Write analog value on the given pin
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myAnalogWrite (struct wiringPiNodeStruct *node, int pin, int value)
|
||||
{
|
||||
unsigned char spiData [2] ;
|
||||
unsigned char chanBits, dataBits ;
|
||||
int chan = pin - node->pinBase ;
|
||||
|
||||
if (chan == 0)
|
||||
chanBits = 0x30 ;
|
||||
else
|
||||
chanBits = 0xB0 ;
|
||||
|
||||
chanBits |= ((value >> 4) & 0x0F) ;
|
||||
dataBits = ((value << 4) & 0xF0) ;
|
||||
|
||||
spiData [0] = chanBits ;
|
||||
spiData [1] = dataBits ;
|
||||
|
||||
wiringPiSPIDataRW (node->fd, spiData, 2) ;
|
||||
}
|
||||
|
||||
/*
|
||||
* mcp4802Setup:
|
||||
* Create a new wiringPi device node for an mcp4802 on the Pi's
|
||||
* SPI interface.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int mcp4802Setup (const int pinBase, int spiChannel)
|
||||
{
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
if (wiringPiSPISetup (spiChannel, 1000000) < 0)
|
||||
return -1 ;
|
||||
|
||||
node = wiringPiNewNode (pinBase, 2) ;
|
||||
|
||||
node->fd = spiChannel ;
|
||||
node->analogWrite = myAnalogWrite ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,33 @@
|
|||
/*
|
||||
* mcp4802.c:
|
||||
* Extend wiringPi with the MCP4802 SPI Digital to Analog convertor
|
||||
* Copyright (c) 2012-2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int mcp4802Setup (int pinBase, int spiChannel) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -0,0 +1,126 @@
|
|||
/*
|
||||
* pcf8574.c:
|
||||
* Extend wiringPi with the PFC8574 I2C GPIO expander chip
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <pthread.h>
|
||||
|
||||
#include "wiringPi.h"
|
||||
#include "wiringPiI2C.h"
|
||||
|
||||
#include "pcf8574.h"
|
||||
|
||||
|
||||
/*
|
||||
* myPinMode:
|
||||
* The PFC8574 is an odd chip - the pins are effectively bi-directional,
|
||||
* however the pins should be drven high when used as an input pin...
|
||||
* So, we're effectively copying digitalWrite...
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myPinMode (struct wiringPiNodeStruct *node, int pin, int mode)
|
||||
{
|
||||
int bit, old ;
|
||||
|
||||
bit = 1 << ((pin - node->pinBase) & 7) ;
|
||||
|
||||
old = node->data2 ;
|
||||
if (mode == OUTPUT)
|
||||
old &= (~bit) ; // Write bit to 0
|
||||
else
|
||||
old |= bit ; // Write bit to 1
|
||||
|
||||
wiringPiI2CWrite (node->fd, old) ;
|
||||
node->data2 = old ;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalWrite:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myDigitalWrite (struct wiringPiNodeStruct *node, int pin, int value)
|
||||
{
|
||||
int bit, old ;
|
||||
|
||||
bit = 1 << ((pin - node->pinBase) & 7) ;
|
||||
|
||||
old = node->data2 ;
|
||||
if (value == LOW)
|
||||
old &= (~bit) ;
|
||||
else
|
||||
old |= bit ;
|
||||
|
||||
wiringPiI2CWrite (node->fd, old) ;
|
||||
node->data2 = old ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalRead:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int myDigitalRead (struct wiringPiNodeStruct *node, int pin)
|
||||
{
|
||||
int mask, value ;
|
||||
|
||||
mask = 1 << ((pin - node->pinBase) & 7) ;
|
||||
value = wiringPiI2CRead (node->fd) ;
|
||||
|
||||
if ((value & mask) == 0)
|
||||
return LOW ;
|
||||
else
|
||||
return HIGH ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* pcf8574Setup:
|
||||
* Create a new instance of a PFC8574 I2C GPIO interface. We know it
|
||||
* has 8 pins, so all we need to know here is the I2C address and the
|
||||
* user-defined pin base.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int pcf8574Setup (const int pinBase, const int i2cAddress)
|
||||
{
|
||||
int fd ;
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
if ((fd = wiringPiI2CSetup (i2cAddress)) < 0)
|
||||
return fd ;
|
||||
|
||||
node = wiringPiNewNode (pinBase, 8) ;
|
||||
|
||||
node->fd = fd ;
|
||||
node->pinMode = myPinMode ;
|
||||
node->digitalRead = myDigitalRead ;
|
||||
node->digitalWrite = myDigitalWrite ;
|
||||
node->data2 = wiringPiI2CRead (fd) ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,33 @@
|
|||
/*
|
||||
* pfc8574.h:
|
||||
* Extend wiringPi with the PFC8574 I2C GPIO expander chip
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int pfc8574Setup (const int pinBase, const int i2cAddress) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -36,15 +36,16 @@
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int piHiPri (int pri)
|
||||
int piHiPri (const int pri)
|
||||
{
|
||||
struct sched_param sched ;
|
||||
|
||||
memset (&sched, 0, sizeof(sched)) ;
|
||||
|
||||
if (pri > sched_get_priority_max (SCHED_RR))
|
||||
pri = sched_get_priority_max (SCHED_RR) ;
|
||||
sched.sched_priority = sched_get_priority_max (SCHED_RR) ;
|
||||
else
|
||||
sched.sched_priority = pri ;
|
||||
|
||||
sched.sched_priority = pri ;
|
||||
return sched_setscheduler (0, SCHED_RR, &sched) ;
|
||||
}
|
||||
|
|
|
@ -28,7 +28,7 @@
|
|||
#include "wiringPi.h"
|
||||
#include "softPwm.h"
|
||||
|
||||
#define MAX_PINS 64
|
||||
#define MAX_PINS 1024
|
||||
|
||||
// The PWM Frequency is derived from the "pulse time" below. Essentially,
|
||||
// the frequency is a function of the range and this pulse time.
|
||||
|
@ -93,7 +93,7 @@ static PI_THREAD (softPwmThread)
|
|||
|
||||
void softPwmWrite (int pin, int value)
|
||||
{
|
||||
pin &= 63 ;
|
||||
pin &= (MAX_PINS - 1) ;
|
||||
|
||||
/**/ if (value < 0)
|
||||
value = 0 ;
|
||||
|
|
|
@ -36,7 +36,7 @@
|
|||
|
||||
#define PULSE_TIME 100
|
||||
|
||||
static int frewqs [MAX_PINS] ;
|
||||
static int freqs [MAX_PINS] ;
|
||||
|
||||
static int newPin = -1 ;
|
||||
|
||||
|
@ -49,7 +49,7 @@ static int newPin = -1 ;
|
|||
|
||||
static PI_THREAD (softToneThread)
|
||||
{
|
||||
int pin, frewq, halfPeriod ;
|
||||
int pin, freq, halfPeriod ;
|
||||
|
||||
pin = newPin ;
|
||||
newPin = -1 ;
|
||||
|
@ -58,12 +58,12 @@ static PI_THREAD (softToneThread)
|
|||
|
||||
for (;;)
|
||||
{
|
||||
frewq = frewqs [pin] ;
|
||||
if (frewq == 0)
|
||||
freq = freqs [pin] ;
|
||||
if (freq == 0)
|
||||
delay (1) ;
|
||||
else
|
||||
{
|
||||
halfPeriod = 500000 / frewq ;
|
||||
halfPeriod = 500000 / freq ;
|
||||
|
||||
digitalWrite (pin, HIGH) ;
|
||||
delayMicroseconds (halfPeriod) ;
|
||||
|
@ -83,16 +83,16 @@ static PI_THREAD (softToneThread)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void softToneWrite (int pin, int frewq)
|
||||
void softToneWrite (int pin, int freq)
|
||||
{
|
||||
pin &= 63 ;
|
||||
|
||||
/**/ if (frewq < 0)
|
||||
frewq = 0 ;
|
||||
else if (frewq > 5000) // Max 5KHz
|
||||
frewq = 5000 ;
|
||||
/**/ if (freq < 0)
|
||||
freq = 0 ;
|
||||
else if (freq > 5000) // Max 5KHz
|
||||
freq = 5000 ;
|
||||
|
||||
frewqs [pin] = frewq ;
|
||||
freqs [pin] = freq ;
|
||||
}
|
||||
|
||||
|
||||
|
@ -109,7 +109,7 @@ int softToneCreate (int pin)
|
|||
pinMode (pin, OUTPUT) ;
|
||||
digitalWrite (pin, LOW) ;
|
||||
|
||||
frewqs [pin] = 0 ;
|
||||
freqs [pin] = 0 ;
|
||||
|
||||
newPin = pin ;
|
||||
res = piThreadCreate (softToneThread) ;
|
||||
|
|
|
@ -31,7 +31,7 @@ extern "C" {
|
|||
#endif
|
||||
|
||||
extern int softToneCreate (int pin) ;
|
||||
extern void softToneWrite (int pin, int frewq) ;
|
||||
extern void softToneWrite (int pin, int freq) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
|
|
|
@ -0,0 +1,109 @@
|
|||
/*
|
||||
* sr595.c:
|
||||
* Extend wiringPi with the 74x595 shift register as a GPIO
|
||||
* expander chip.
|
||||
* Note that the code can cope with a number of 595's
|
||||
* daisy-chained together - up to 4 for now as we're storing
|
||||
* the output "register" in a single unsigned int.
|
||||
*
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include "wiringPi.h"
|
||||
|
||||
#include "sr595.h"
|
||||
|
||||
|
||||
/*
|
||||
* myDigitalWrite:
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myDigitalWrite (struct wiringPiNodeStruct *node, int pin, int value)
|
||||
{
|
||||
unsigned int mask ;
|
||||
int dataPin, clockPin, latchPin ;
|
||||
int bit, bits, output ;
|
||||
|
||||
pin -= node->pinBase ; // Normalise pin number
|
||||
bits = node->pinMax - node->pinBase + 1 ; // ie. number of clock pulses
|
||||
dataPin = node->data0 ;
|
||||
clockPin = node->data1 ;
|
||||
latchPin = node->data2 ;
|
||||
output = node->data3 ;
|
||||
|
||||
mask = 1 << pin ;
|
||||
|
||||
if (value == LOW)
|
||||
output &= (~mask) ;
|
||||
else
|
||||
output |= mask ;
|
||||
|
||||
node->data3 = output ;
|
||||
|
||||
// A low -> high latch transition copies the latch to the output pins
|
||||
|
||||
digitalWrite (latchPin, LOW) ; delayMicroseconds (1) ;
|
||||
for (bit = bits - 1 ; bit >= 0 ; --bit)
|
||||
{
|
||||
digitalWrite (dataPin, output & (1 << bit)) ;
|
||||
|
||||
digitalWrite (clockPin, HIGH) ; delayMicroseconds (1) ;
|
||||
digitalWrite (clockPin, LOW) ; delayMicroseconds (1) ;
|
||||
}
|
||||
digitalWrite (latchPin, HIGH) ; delayMicroseconds (1) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* sr595Setup:
|
||||
* Create a new instance of a 74x595 shift register GPIO expander.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int sr595Setup (const int pinBase, const int numPins,
|
||||
const int dataPin, const int clockPin, const int latchPin)
|
||||
{
|
||||
struct wiringPiNodeStruct *node ;
|
||||
|
||||
node = wiringPiNewNode (pinBase, numPins) ;
|
||||
|
||||
node->data0 = dataPin ;
|
||||
node->data1 = clockPin ;
|
||||
node->data2 = latchPin ;
|
||||
node->data3 = 0 ; // Output register
|
||||
node->digitalWrite = myDigitalWrite ;
|
||||
|
||||
// Initialise the underlying hardware
|
||||
|
||||
digitalWrite (dataPin, LOW) ;
|
||||
digitalWrite (clockPin, LOW) ;
|
||||
digitalWrite (latchPin, HIGH) ;
|
||||
|
||||
pinMode (dataPin, OUTPUT) ;
|
||||
pinMode (clockPin, OUTPUT) ;
|
||||
pinMode (latchPin, OUTPUT) ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,34 @@
|
|||
/*
|
||||
* sr595.h:
|
||||
* Extend wiringPi with the 74x595 shift registers.
|
||||
* Copyright (c) 2013 Gordon Henderson
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int sr595Setup (const int pinBase, const int numPins,
|
||||
const int dataPin, const int clockPin, const int latchPin) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
1180
wiringPi/wiringPi.c
1180
wiringPi/wiringPi.c
File diff suppressed because it is too large
Load Diff
|
@ -29,7 +29,8 @@
|
|||
#define WPI_MODE_PINS 0
|
||||
#define WPI_MODE_GPIO 1
|
||||
#define WPI_MODE_GPIO_SYS 2
|
||||
#define WPI_MODE_PIFACE 3
|
||||
#define WPI_MODE_PHYS 3
|
||||
#define WPI_MODE_PIFACE 4
|
||||
#define WPI_MODE_UNINITIALISED -1
|
||||
|
||||
// Pin modes
|
||||
|
@ -64,6 +65,42 @@
|
|||
|
||||
#define PI_THREAD(X) void *X (void *dummy)
|
||||
|
||||
// Failure modes
|
||||
|
||||
#define WPI_FATAL (1==1)
|
||||
#define WPI_ALMOST (1==2)
|
||||
|
||||
|
||||
// wiringPiNodeStruct:
|
||||
// This describes additional device nodes in the extended wiringPi
|
||||
// 2.0 scheme of things.
|
||||
// It's a simple linked list for now, but will hopefully migrate to
|
||||
// a binary tree for efficiency reasons - but then again, the chances
|
||||
// of more than 1 or 2 devices being added are fairly slim, so who
|
||||
// knows....
|
||||
|
||||
struct wiringPiNodeStruct
|
||||
{
|
||||
int pinBase ;
|
||||
int pinMax ;
|
||||
|
||||
int fd ; // Node specific
|
||||
unsigned int data0 ; // ditto
|
||||
unsigned int data1 ; // ditto
|
||||
unsigned int data2 ; // ditto
|
||||
unsigned int data3 ; // ditto
|
||||
|
||||
void (*pinMode) (struct wiringPiNodeStruct *node, int pin, int mode) ;
|
||||
void (*pullUpDnControl) (struct wiringPiNodeStruct *node, int pin, int mode) ;
|
||||
int (*digitalRead) (struct wiringPiNodeStruct *node, int pin) ;
|
||||
void (*digitalWrite) (struct wiringPiNodeStruct *node, int pin, int value) ;
|
||||
void (*pwmWrite) (struct wiringPiNodeStruct *node, int pin, int value) ;
|
||||
int (*analogRead) (struct wiringPiNodeStruct *node, int pin) ;
|
||||
void (*analogWrite) (struct wiringPiNodeStruct *node, int pin, int value) ;
|
||||
|
||||
struct wiringPiNodeStruct *next ;
|
||||
} ;
|
||||
|
||||
|
||||
// Function prototypes
|
||||
// c++ wrappers thanks to a comment by Nick Lott
|
||||
|
@ -73,46 +110,61 @@
|
|||
extern "C" {
|
||||
#endif
|
||||
|
||||
// Basic wiringPi functions
|
||||
// Internal
|
||||
|
||||
extern int wiringPiFailure (int fatal, const char *message, ...) ;
|
||||
|
||||
// Core wiringPi functions
|
||||
|
||||
extern struct wiringPiNodeStruct *wiringPiNewNode (int pinBase, int numPins) ;
|
||||
|
||||
extern int wiringPiSetup (void) ;
|
||||
extern int wiringPiSetupSys (void) ;
|
||||
extern int wiringPiSetupGpio (void) ;
|
||||
extern int wiringPiSetupPhys (void) ;
|
||||
|
||||
extern void pinMode (int pin, int mode) ;
|
||||
extern void pullUpDnControl (int pin, int pud) ;
|
||||
extern int digitalRead (int pin) ;
|
||||
extern void digitalWrite (int pin, int value) ;
|
||||
extern void pwmWrite (int pin, int value) ;
|
||||
extern int analogRead (int pin) ;
|
||||
extern void analogWrite (int pin, int value) ;
|
||||
|
||||
// PiFace specifics
|
||||
// (Deprecated)
|
||||
|
||||
extern int wiringPiSetupPiFace (void) ;
|
||||
extern int wiringPiSetupPiFaceForGpioProg (void) ; // Don't use this - for gpio program only
|
||||
|
||||
// On-Board Raspberry Pi hardware specific stuff
|
||||
|
||||
extern int piBoardRev (void) ;
|
||||
extern int wpiPinToGpio (int wpiPin) ;
|
||||
|
||||
extern int wiringPiSetupPiFaceForGpioProg (void) ; // Don't use this - for gpio program only
|
||||
|
||||
extern void (*pinMode) (int pin, int mode) ;
|
||||
extern int (*getAlt) (int pin) ;
|
||||
extern void (*pullUpDnControl) (int pin, int pud) ;
|
||||
extern void (*digitalWrite) (int pin, int value) ;
|
||||
extern void (*digitalWriteByte) (int value) ;
|
||||
extern void (*gpioClockSet) (int pin, int freq) ;
|
||||
extern void (*pwmWrite) (int pin, int value) ;
|
||||
extern void (*setPadDrive) (int group, int value) ;
|
||||
extern int (*digitalRead) (int pin) ;
|
||||
extern void (*pwmSetMode) (int mode) ;
|
||||
extern void (*pwmSetRange) (unsigned int range) ;
|
||||
extern void (*pwmSetClock) (int divisor) ;
|
||||
extern int physPinToGpio (int physPin) ;
|
||||
extern void setPadDrive (int group, int value) ;
|
||||
extern int getAlt (int pin) ;
|
||||
extern void digitalWriteByte (int value) ;
|
||||
extern void pwmSetMode (int mode) ;
|
||||
extern void pwmSetRange (unsigned int range) ;
|
||||
extern void pwmSetClock (int divisor) ;
|
||||
extern void gpioClockSet (int pin, int freq) ;
|
||||
|
||||
// Interrupts
|
||||
// (Also Pi hardware specific)
|
||||
|
||||
extern int (*waitForInterrupt) (int pin, int mS) ;
|
||||
extern int waitForInterrupt (int pin, int mS) ;
|
||||
extern int wiringPiISR (int pin, int mode, void (*function)(void)) ;
|
||||
|
||||
// Threads
|
||||
|
||||
extern int piThreadCreate (void *(*fn)(void *)) ;
|
||||
extern void piLock (int key) ;
|
||||
extern void piUnlock (int key) ;
|
||||
extern int piThreadCreate (void *(*fn)(void *)) ;
|
||||
extern void piLock (int key) ;
|
||||
extern void piUnlock (int key) ;
|
||||
|
||||
// Schedulling priority
|
||||
|
||||
extern int piHiPri (int pri) ;
|
||||
|
||||
extern int piHiPri (const int pri) ;
|
||||
|
||||
// Extras from arduino land
|
||||
|
||||
|
|
|
@ -1,362 +0,0 @@
|
|||
/*
|
||||
* wiringPiFace:
|
||||
* Arduino compatable (ish) Wiring library for the Raspberry Pi
|
||||
* Copyright (c) 2012 Gordon Henderson
|
||||
*
|
||||
* This file to interface with the PiFace peripheral device which
|
||||
* has an MCP23S17 GPIO device connected via the SPI bus.
|
||||
*
|
||||
***********************************************************************
|
||||
* This file is part of wiringPi:
|
||||
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
||||
*
|
||||
* wiringPi is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as
|
||||
* published by the Free Software Foundation, either version 3 of the
|
||||
* License, or (at your option) any later version.
|
||||
*
|
||||
* wiringPi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with wiringPi.
|
||||
* If not, see <http://www.gnu.org/licenses/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/types.h>
|
||||
#include <linux/spi/spidev.h>
|
||||
|
||||
#include "wiringPi.h"
|
||||
|
||||
|
||||
// The SPI bus parameters
|
||||
// Variables as they need to be passed as pointers later on
|
||||
|
||||
static char *spiDevice = "/dev/spidev0.0" ;
|
||||
static uint8_t spiMode = 0 ;
|
||||
static uint8_t spiBPW = 8 ;
|
||||
static uint32_t spiSpeed = 5000000 ;
|
||||
static uint16_t spiDelay = 0;
|
||||
|
||||
// Locals here to keep track of everything
|
||||
|
||||
static int spiFd ;
|
||||
|
||||
// The MCP23S17 doesn't have bit-set operations, so it's
|
||||
// cheaper to keep a copy here than to read/modify/write it
|
||||
|
||||
uint8_t dataOutRegister = 0 ;
|
||||
uint8_t pudRegister = 0 ;
|
||||
|
||||
// MCP23S17 Registers
|
||||
|
||||
#define IOCON 0x0A
|
||||
|
||||
#define IODIRA 0x00
|
||||
#define IPOLA 0x02
|
||||
#define GPINTENA 0x04
|
||||
#define DEFVALA 0x06
|
||||
#define INTCONA 0x08
|
||||
#define GPPUA 0x0C
|
||||
#define INTFA 0x0E
|
||||
#define INTCAPA 0x10
|
||||
#define GPIOA 0x12
|
||||
#define OLATA 0x14
|
||||
|
||||
#define IODIRB 0x01
|
||||
#define IPOLB 0x03
|
||||
#define GPINTENB 0x05
|
||||
#define DEFVALB 0x07
|
||||
#define INTCONB 0x09
|
||||
#define GPPUB 0x0D
|
||||
#define INTFB 0x0F
|
||||
#define INTCAPB 0x11
|
||||
#define GPIOB 0x13
|
||||
#define OLATB 0x15
|
||||
|
||||
// Bits in the IOCON register
|
||||
|
||||
#define IOCON_BANK_MODE 0x80
|
||||
#define IOCON_MIRROR 0x40
|
||||
#define IOCON_SEQOP 0x20
|
||||
#define IOCON_DISSLW 0x10
|
||||
#define IOCON_HAEN 0x08
|
||||
#define IOCON_ODR 0x04
|
||||
#define IOCON_INTPOL 0x02
|
||||
#define IOCON_UNUSED 0x01
|
||||
|
||||
// Default initialisation mode
|
||||
|
||||
#define IOCON_INIT (IOCON_SEQOP)
|
||||
|
||||
// Command codes
|
||||
|
||||
#define CMD_WRITE 0x40
|
||||
#define CMD_READ 0x41
|
||||
|
||||
|
||||
/*
|
||||
* writeByte:
|
||||
* Write a byte to a register on the MCP23S17 on the SPI bus.
|
||||
* This is using the synchronous access mechanism.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void writeByte (uint8_t reg, uint8_t data)
|
||||
{
|
||||
uint8_t spiBufTx [3] ;
|
||||
uint8_t spiBufRx [3] ;
|
||||
struct spi_ioc_transfer spi ;
|
||||
|
||||
spiBufTx [0] = CMD_WRITE ;
|
||||
spiBufTx [1] = reg ;
|
||||
spiBufTx [2] = data ;
|
||||
|
||||
spi.tx_buf = (unsigned long)spiBufTx ;
|
||||
spi.rx_buf = (unsigned long)spiBufRx ;
|
||||
spi.len = 3 ;
|
||||
spi.delay_usecs = spiDelay ;
|
||||
spi.speed_hz = spiSpeed ;
|
||||
spi.bits_per_word = spiBPW ;
|
||||
|
||||
ioctl (spiFd, SPI_IOC_MESSAGE(1), &spi) ;
|
||||
}
|
||||
|
||||
/*
|
||||
* readByte:
|
||||
* Read a byte from a register on the MCP23S17 on the SPI bus.
|
||||
* This is the synchronous access mechanism.
|
||||
* What appears to happen is that the data returned is at
|
||||
* the same offset as the number of bytes written to the device. So if we
|
||||
* write 2 bytes (e.g. command then register number), then the data returned
|
||||
* will by at the 3rd byte...
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static uint8_t readByte (uint8_t reg)
|
||||
{
|
||||
uint8_t tx [4] ;
|
||||
uint8_t rx [4] ;
|
||||
struct spi_ioc_transfer spi ;
|
||||
|
||||
tx [0] = CMD_READ ;
|
||||
tx [1] = reg ;
|
||||
tx [2] = 0 ;
|
||||
|
||||
spi.tx_buf = (unsigned long)tx ;
|
||||
spi.rx_buf = (unsigned long)rx ;
|
||||
spi.len = 3 ;
|
||||
spi.delay_usecs = spiDelay ;
|
||||
spi.speed_hz = spiSpeed ;
|
||||
spi.bits_per_word = spiBPW ;
|
||||
|
||||
ioctl (spiFd, SPI_IOC_MESSAGE(1), &spi) ;
|
||||
|
||||
return rx [2] ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* digitalWritePiFace:
|
||||
* Perform the digitalWrite function on the PiFace board
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void digitalWritePiFace (int pin, int value)
|
||||
{
|
||||
uint8_t mask = 1 << pin ;
|
||||
|
||||
if (value == 0)
|
||||
dataOutRegister &= (~mask) ;
|
||||
else
|
||||
dataOutRegister |= mask ;
|
||||
|
||||
writeByte (GPIOA, dataOutRegister) ;
|
||||
}
|
||||
|
||||
void digitalWriteBytePiFace (int value)
|
||||
{
|
||||
writeByte (GPIOA, value) ;
|
||||
}
|
||||
|
||||
|
||||
void digitalWritePiFaceSpecial (int pin, int value)
|
||||
{
|
||||
uint8_t mask = 1 << pin ;
|
||||
uint8_t old ;
|
||||
|
||||
old = readByte (GPIOA) ;
|
||||
|
||||
if (value == 0)
|
||||
old &= (~mask) ;
|
||||
else
|
||||
old |= mask ;
|
||||
|
||||
writeByte (GPIOA, old) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* digitalReadPiFace:
|
||||
* Perform the digitalRead function on the PiFace board
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int digitalReadPiFace (int pin)
|
||||
{
|
||||
uint8_t mask = 1 << pin ;
|
||||
|
||||
if ((readByte (GPIOB) & mask) != 0)
|
||||
return HIGH ;
|
||||
else
|
||||
return LOW ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* pullUpDnControlPiFace:
|
||||
* Perform the pullUpDnControl function on the PiFace board
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void pullUpDnControlPiFace (int pin, int pud)
|
||||
{
|
||||
uint8_t mask = 1 << pin ;
|
||||
|
||||
if (pud == PUD_UP)
|
||||
pudRegister |= mask ;
|
||||
else
|
||||
pudRegister &= (~mask) ;
|
||||
|
||||
writeByte (GPPUB, pudRegister) ;
|
||||
|
||||
}
|
||||
|
||||
|
||||
void pullUpDnControlPiFaceSpecial (int pin, int pud)
|
||||
{
|
||||
uint8_t mask = 1 << pin ;
|
||||
uint8_t old ;
|
||||
|
||||
old = readByte (GPPUB) ;
|
||||
|
||||
if (pud == PUD_UP)
|
||||
old |= mask ;
|
||||
else
|
||||
old &= (~mask) ;
|
||||
|
||||
writeByte (GPPUB, old) ;
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* Dummy functions that are not used in this mode
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void pinModePiFace (int pin, int mode) {}
|
||||
void pwmWritePiFace (int pin, int value) {}
|
||||
int waitForInterruptPiFace (int pin, int mS) { return 0 ; }
|
||||
|
||||
|
||||
/*
|
||||
* wiringPiSetupPiFace
|
||||
* Setup the SPI interface and initialise the MCP23S17 chip
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int _wiringPiSetupPiFace (void)
|
||||
{
|
||||
if ((spiFd = open (spiDevice, O_RDWR)) < 0)
|
||||
return -1 ;
|
||||
|
||||
// Set SPI parameters
|
||||
// Why are we doing a read after write?
|
||||
// I don't know - just blindliy copying an example elsewhere... -GH-
|
||||
|
||||
if (ioctl (spiFd, SPI_IOC_WR_MODE, &spiMode) < 0)
|
||||
return -1 ;
|
||||
|
||||
if (ioctl (spiFd, SPI_IOC_RD_MODE, &spiMode) < 0)
|
||||
return -1 ;
|
||||
|
||||
if (ioctl (spiFd, SPI_IOC_WR_BITS_PER_WORD, &spiBPW) < 0)
|
||||
return -1 ;
|
||||
|
||||
if (ioctl (spiFd, SPI_IOC_RD_BITS_PER_WORD, &spiBPW) < 0)
|
||||
return -1 ;
|
||||
|
||||
if (ioctl (spiFd, SPI_IOC_WR_MAX_SPEED_HZ, &spiSpeed) < 0)
|
||||
return -1 ;
|
||||
|
||||
if (ioctl (spiFd, SPI_IOC_RD_MAX_SPEED_HZ, &spiSpeed) < 0)
|
||||
return -1 ;
|
||||
|
||||
// Setup the MCP23S17
|
||||
|
||||
writeByte (IOCON, IOCON_INIT) ;
|
||||
|
||||
writeByte (IODIRA, 0x00) ; // Port A -> Outputs
|
||||
writeByte (IODIRB, 0xFF) ; // Port B -> Inputs
|
||||
|
||||
return 0 ;
|
||||
}
|
||||
|
||||
|
||||
int wiringPiSetupPiFace (void)
|
||||
{
|
||||
int x = _wiringPiSetupPiFace () ;
|
||||
|
||||
if (x != 0)
|
||||
return x ;
|
||||
|
||||
writeByte (GPIOA, 0x00) ; // Set all outptus off
|
||||
writeByte (GPPUB, 0x00) ; // Disable any pull-ups on port B
|
||||
|
||||
pinMode = pinModePiFace ;
|
||||
pullUpDnControl = pullUpDnControlPiFace ;
|
||||
digitalWrite = digitalWritePiFace ;
|
||||
digitalWriteByte = digitalWriteBytePiFace ;
|
||||
pwmWrite = pwmWritePiFace ;
|
||||
digitalRead = digitalReadPiFace ;
|
||||
waitForInterrupt = waitForInterruptPiFace ;
|
||||
|
||||
return 0 ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* wiringPiSetupPiFaceForGpioProg:
|
||||
* Setup the SPI interface and initialise the MCP23S17 chip
|
||||
* Special version for the gpio program
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
|
||||
int wiringPiSetupPiFaceForGpioProg (void)
|
||||
{
|
||||
int x = _wiringPiSetupPiFace () ;
|
||||
|
||||
if (x != 0)
|
||||
return x ;
|
||||
|
||||
pinMode = pinModePiFace ;
|
||||
pullUpDnControl = pullUpDnControlPiFaceSpecial ;
|
||||
digitalWrite = digitalWritePiFaceSpecial ;
|
||||
digitalWriteByte = digitalWriteBytePiFace ;
|
||||
pwmWrite = pwmWritePiFace ;
|
||||
digitalRead = digitalReadPiFace ;
|
||||
waitForInterrupt = waitForInterruptPiFace ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -22,15 +22,93 @@
|
|||
***********************************************************************
|
||||
*/
|
||||
|
||||
/*
|
||||
* Notes:
|
||||
* The Linux I2C code is actually the same (almost) as the SMBus code.
|
||||
* SMBus is System Management Bus - and in essentially I2C with some
|
||||
* additional functionality added, and stricter controls on the electrical
|
||||
* specifications, etc. however I2C does work well with it and the
|
||||
* protocols work over both.
|
||||
*
|
||||
* I'm directly including the SMBus functions here as some Linux distros
|
||||
* lack the correct header files, and also some header files are GPLv2
|
||||
* rather than the LGPL that wiringPi is released under - presumably because
|
||||
* originally no-one expected I2C/SMBus to be used outside the kernel -
|
||||
* however enter the Raspberry Pi with people now taking directly to I2C
|
||||
* devices without going via the kernel...
|
||||
*
|
||||
* This may ultimately reduce the flexibility of this code, but it won't be
|
||||
* hard to maintain it and keep it current, should things change.
|
||||
*
|
||||
* Information here gained from: kernel/Documentation/i2c/dev-interface
|
||||
* as well as other online resources.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdint.h>
|
||||
#include <errno.h>
|
||||
#include <string.h>
|
||||
#include <fcntl.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <linux/i2c-dev.h>
|
||||
|
||||
#include "wiringPi.h"
|
||||
#include "wiringPiI2C.h"
|
||||
|
||||
// I2C definitions
|
||||
|
||||
#define I2C_SLAVE 0x0703
|
||||
#define I2C_SMBUS 0x0720 /* SMBus-level access */
|
||||
|
||||
#define I2C_SMBUS_READ 1
|
||||
#define I2C_SMBUS_WRITE 0
|
||||
|
||||
// SMBus transaction types
|
||||
|
||||
#define I2C_SMBUS_QUICK 0
|
||||
#define I2C_SMBUS_BYTE 1
|
||||
#define I2C_SMBUS_BYTE_DATA 2
|
||||
#define I2C_SMBUS_WORD_DATA 3
|
||||
#define I2C_SMBUS_PROC_CALL 4
|
||||
#define I2C_SMBUS_BLOCK_DATA 5
|
||||
#define I2C_SMBUS_I2C_BLOCK_BROKEN 6
|
||||
#define I2C_SMBUS_BLOCK_PROC_CALL 7 /* SMBus 2.0 */
|
||||
#define I2C_SMBUS_I2C_BLOCK_DATA 8
|
||||
|
||||
// SMBus messages
|
||||
|
||||
#define I2C_SMBUS_BLOCK_MAX 32 /* As specified in SMBus standard */
|
||||
#define I2C_SMBUS_I2C_BLOCK_MAX 32 /* Not specified but we use same structure */
|
||||
|
||||
// Structures used in the ioctl() calls
|
||||
|
||||
union i2c_smbus_data
|
||||
{
|
||||
uint8_t byte ;
|
||||
uint16_t word ;
|
||||
uint8_t block [I2C_SMBUS_BLOCK_MAX + 2] ; // block [0] is used for length + one more for PEC
|
||||
} ;
|
||||
|
||||
struct i2c_smbus_ioctl_data
|
||||
{
|
||||
char read_write ;
|
||||
uint8_t command ;
|
||||
int size ;
|
||||
union i2c_smbus_data *data ;
|
||||
} ;
|
||||
|
||||
static inline int i2c_smbus_access (int fd, char rw, uint8_t command, int size, union i2c_smbus_data *data)
|
||||
{
|
||||
struct i2c_smbus_ioctl_data args ;
|
||||
|
||||
args.read_write = rw ;
|
||||
args.command = command ;
|
||||
args.size = size ;
|
||||
args.data = data ;
|
||||
return ioctl (fd, I2C_SMBUS, &args) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* wiringPiI2CRead:
|
||||
|
@ -40,7 +118,12 @@
|
|||
|
||||
int wiringPiI2CRead (int fd)
|
||||
{
|
||||
return i2c_smbus_read_byte (fd) ;
|
||||
union i2c_smbus_data data ;
|
||||
|
||||
if (i2c_smbus_access (fd, I2C_SMBUS_READ, 0, I2C_SMBUS_BYTE, &data))
|
||||
return -1 ;
|
||||
else
|
||||
return data.byte & 0xFF ;
|
||||
}
|
||||
|
||||
|
||||
|
@ -52,12 +135,22 @@ int wiringPiI2CRead (int fd)
|
|||
|
||||
int wiringPiI2CReadReg8 (int fd, int reg)
|
||||
{
|
||||
return i2c_smbus_read_byte_data (fd, reg) ;
|
||||
union i2c_smbus_data data;
|
||||
|
||||
if (i2c_smbus_access (fd, I2C_SMBUS_READ, reg, I2C_SMBUS_BYTE_DATA, &data))
|
||||
return -1 ;
|
||||
else
|
||||
return data.byte & 0xFF ;
|
||||
}
|
||||
|
||||
int wiringPiI2CReadReg16 (int fd, int reg)
|
||||
{
|
||||
return i2c_smbus_read_word_data (fd, reg) ;
|
||||
union i2c_smbus_data data;
|
||||
|
||||
if (i2c_smbus_access (fd, I2C_SMBUS_READ, reg, I2C_SMBUS_WORD_DATA, &data))
|
||||
return -1 ;
|
||||
else
|
||||
return data.byte & 0xFF ;
|
||||
}
|
||||
|
||||
|
||||
|
@ -69,7 +162,7 @@ int wiringPiI2CReadReg16 (int fd, int reg)
|
|||
|
||||
int wiringPiI2CWrite (int fd, int data)
|
||||
{
|
||||
return i2c_smbus_write_byte (fd, data) ;
|
||||
return i2c_smbus_access (fd, I2C_SMBUS_WRITE, data, I2C_SMBUS_BYTE, NULL) ;
|
||||
}
|
||||
|
||||
|
||||
|
@ -79,14 +172,41 @@ int wiringPiI2CWrite (int fd, int data)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int wiringPiI2CWriteReg8 (int fd, int reg, int data)
|
||||
int wiringPiI2CWriteReg8 (int fd, int reg, int value)
|
||||
{
|
||||
return i2c_smbus_write_byte_data (fd, reg, data) ;
|
||||
union i2c_smbus_data data ;
|
||||
|
||||
data.byte = value ;
|
||||
return i2c_smbus_access (fd, I2C_SMBUS_WRITE, reg, I2C_SMBUS_BYTE_DATA, &data) ;
|
||||
}
|
||||
|
||||
int wiringPiI2CWriteReg16 (int fd, int reg, int data)
|
||||
int wiringPiI2CWriteReg16 (int fd, int reg, int value)
|
||||
{
|
||||
return i2c_smbus_write_word_data (fd, reg, data) ;
|
||||
union i2c_smbus_data data ;
|
||||
|
||||
data.word = value ;
|
||||
return i2c_smbus_access (fd, I2C_SMBUS_WRITE, reg, I2C_SMBUS_WORD_DATA, &data) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* wiringPiI2CSetupInterface:
|
||||
* Undocumented access to set the interface explicitly - might be used
|
||||
* for the Pi's 2nd I2C interface...
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int wiringPiI2CSetupInterface (const char *device, int devId)
|
||||
{
|
||||
int fd ;
|
||||
|
||||
if ((fd = open (device, O_RDWR)) < 0)
|
||||
return wiringPiFailure (WPI_ALMOST, "Unable to open I2C device: %s\n", strerror (errno)) ;
|
||||
|
||||
if (ioctl (fd, I2C_SLAVE, devId) < 0)
|
||||
return wiringPiFailure (WPI_ALMOST, "Unable to select I2C device: %s\n", strerror (errno)) ;
|
||||
|
||||
return fd ;
|
||||
}
|
||||
|
||||
|
||||
|
@ -96,27 +216,17 @@ int wiringPiI2CWriteReg16 (int fd, int reg, int data)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int wiringPiI2CSetup (int devId)
|
||||
int wiringPiI2CSetup (const int devId)
|
||||
{
|
||||
int rev, fd ;
|
||||
char *device ;
|
||||
int rev ;
|
||||
const char *device ;
|
||||
|
||||
if ((rev = piBoardRev ()) < 0)
|
||||
{
|
||||
fprintf (stderr, "wiringPiI2CSetup: Unable to determine Pi board revision\n") ;
|
||||
exit (1) ;
|
||||
}
|
||||
rev = piBoardRev () ;
|
||||
|
||||
if (rev == 1)
|
||||
device = "/dev/i2c-0" ;
|
||||
else
|
||||
device = "/dev/i2c-1" ;
|
||||
|
||||
if ((fd = open (device, O_RDWR)) < 0)
|
||||
return -1 ;
|
||||
|
||||
if (ioctl (fd, I2C_SLAVE, devId) < 0)
|
||||
return -1 ;
|
||||
|
||||
return fd ;
|
||||
return wiringPiI2CSetupInterface (device, devId) ;
|
||||
}
|
||||
|
|
|
@ -26,15 +26,16 @@
|
|||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int wiringPiI2CRead (int fd) ;
|
||||
extern int wiringPiI2CReadReg8 (int fd, int reg) ;
|
||||
extern int wiringPiI2CReadReg16 (int fd, int reg) ;
|
||||
extern int wiringPiI2CRead (int fd) ;
|
||||
extern int wiringPiI2CReadReg8 (int fd, int reg) ;
|
||||
extern int wiringPiI2CReadReg16 (int fd, int reg) ;
|
||||
|
||||
extern int wiringPiI2CWrite (int fd, int data) ;
|
||||
extern int wiringPiI2CWriteReg8 (int fd, int reg, int data) ;
|
||||
extern int wiringPiI2CWriteReg16 (int fd, int reg, int data) ;
|
||||
extern int wiringPiI2CWrite (int fd, int data) ;
|
||||
extern int wiringPiI2CWriteReg8 (int fd, int reg, int data) ;
|
||||
extern int wiringPiI2CWriteReg16 (int fd, int reg, int data) ;
|
||||
|
||||
int wiringPiI2CSetup (int devId) ;
|
||||
extern int wiringPiI2CSetupInterface (const char *device, int devId) ;
|
||||
extern int wiringPiI2CSetup (const int devId) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
|
|
|
@ -25,20 +25,24 @@
|
|||
|
||||
#include <stdint.h>
|
||||
#include <fcntl.h>
|
||||
#include <errno.h>
|
||||
#include <string.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <linux/spi/spidev.h>
|
||||
|
||||
#include "wiringPi.h"
|
||||
|
||||
#include "wiringPiSPI.h"
|
||||
|
||||
|
||||
// The SPI bus parameters
|
||||
// Variables as they need to be passed as pointers later on
|
||||
|
||||
static char *spiDev0 = "/dev/spidev0.0" ;
|
||||
static char *spiDev1 = "/dev/spidev0.1" ;
|
||||
static uint8_t spiMode = 0 ;
|
||||
static uint8_t spiBPW = 8 ;
|
||||
static uint16_t spiDelay = 0;
|
||||
const static char *spiDev0 = "/dev/spidev0.0" ;
|
||||
const static char *spiDev1 = "/dev/spidev0.1" ;
|
||||
const static uint8_t spiMode = 0 ;
|
||||
const static uint8_t spiBPW = 8 ;
|
||||
const static uint16_t spiDelay = 0 ;
|
||||
|
||||
static uint32_t spiSpeeds [2] ;
|
||||
static int spiFds [2] ;
|
||||
|
@ -95,7 +99,7 @@ int wiringPiSPISetup (int channel, int speed)
|
|||
channel &= 1 ;
|
||||
|
||||
if ((fd = open (channel == 0 ? spiDev0 : spiDev1, O_RDWR)) < 0)
|
||||
return -1 ;
|
||||
return wiringPiFailure (WPI_ALMOST, "Unable to open SPI device: %s\n", strerror (errno)) ;
|
||||
|
||||
spiSpeeds [channel] = speed ;
|
||||
spiFds [channel] = fd ;
|
||||
|
@ -104,14 +108,14 @@ int wiringPiSPISetup (int channel, int speed)
|
|||
// Why are we reading it afterwriting it? I've no idea, but for now I'm blindly
|
||||
// copying example code I've seen online...
|
||||
|
||||
if (ioctl (fd, SPI_IOC_WR_MODE, &spiMode) < 0) return -1 ;
|
||||
if (ioctl (fd, SPI_IOC_RD_MODE, &spiMode) < 0) return -1 ;
|
||||
|
||||
if (ioctl (fd, SPI_IOC_WR_BITS_PER_WORD, &spiBPW) < 0) return -1 ;
|
||||
if (ioctl (fd, SPI_IOC_RD_BITS_PER_WORD, &spiBPW) < 0) return -1 ;
|
||||
if (ioctl (fd, SPI_IOC_WR_MODE, &spiMode) < 0)
|
||||
return wiringPiFailure (WPI_ALMOST, "SPI Mode Change failure: %s\n", strerror (errno)) ;
|
||||
|
||||
if (ioctl (fd, SPI_IOC_WR_BITS_PER_WORD, &spiBPW) < 0)
|
||||
return wiringPiFailure (WPI_ALMOST, "SPI BPW Change failure: %s\n", strerror (errno)) ;
|
||||
|
||||
if (ioctl (fd, SPI_IOC_WR_MAX_SPEED_HZ, &speed) < 0) return -1 ;
|
||||
if (ioctl (fd, SPI_IOC_RD_MAX_SPEED_HZ, &speed) < 0) return -1 ;
|
||||
return wiringPiFailure (WPI_ALMOST, "SPI Speed Change failure: %s\n", strerror (errno)) ;
|
||||
|
||||
return fd ;
|
||||
}
|
||||
|
|
|
@ -41,7 +41,7 @@
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int serialOpen (char *device, int baud)
|
||||
int serialOpen (const char *device, const int baud)
|
||||
{
|
||||
struct termios options ;
|
||||
speed_t myBaud ;
|
||||
|
@ -60,6 +60,7 @@ int serialOpen (char *device, int baud)
|
|||
case 1200: myBaud = B1200 ; break ;
|
||||
case 1800: myBaud = B1800 ; break ;
|
||||
case 2400: myBaud = B2400 ; break ;
|
||||
case 4800: myBaud = B4800 ; break ;
|
||||
case 9600: myBaud = B9600 ; break ;
|
||||
case 19200: myBaud = B19200 ; break ;
|
||||
case 38400: myBaud = B38400 ; break ;
|
||||
|
@ -116,7 +117,7 @@ int serialOpen (char *device, int baud)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void serialFlush (int fd)
|
||||
void serialFlush (const int fd)
|
||||
{
|
||||
tcflush (fd, TCIOFLUSH) ;
|
||||
}
|
||||
|
@ -128,7 +129,7 @@ void serialFlush (int fd)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void serialClose (int fd)
|
||||
void serialClose (const int fd)
|
||||
{
|
||||
close (fd) ;
|
||||
}
|
||||
|
@ -140,7 +141,7 @@ void serialClose (int fd)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void serialPutchar (int fd, unsigned char c)
|
||||
void serialPutchar (const int fd, const unsigned char c)
|
||||
{
|
||||
write (fd, &c, 1) ;
|
||||
}
|
||||
|
@ -152,7 +153,7 @@ void serialPutchar (int fd, unsigned char c)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void serialPuts (int fd, char *s)
|
||||
void serialPuts (const int fd, const char *s)
|
||||
{
|
||||
write (fd, s, strlen (s)) ;
|
||||
}
|
||||
|
@ -163,7 +164,7 @@ void serialPuts (int fd, char *s)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
void serialPrintf (int fd, char *message, ...)
|
||||
void serialPrintf (const int fd, const char *message, ...)
|
||||
{
|
||||
va_list argp ;
|
||||
char buffer [1024] ;
|
||||
|
@ -182,7 +183,7 @@ void serialPrintf (int fd, char *message, ...)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int serialDataAvail (int fd)
|
||||
int serialDataAvail (const int fd)
|
||||
{
|
||||
int result ;
|
||||
|
||||
|
@ -201,7 +202,7 @@ int serialDataAvail (int fd)
|
|||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int serialGetchar (int fd)
|
||||
int serialGetchar (const int fd)
|
||||
{
|
||||
uint8_t x ;
|
||||
|
||||
|
|
|
@ -24,14 +24,14 @@
|
|||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int serialOpen (char *device, int baud) ;
|
||||
extern void serialClose (int fd) ;
|
||||
extern void serialFlush (int fd) ;
|
||||
extern void serialPutchar (int fd, unsigned char c) ;
|
||||
extern void serialPuts (int fd, char *s) ;
|
||||
extern void serialPrintf (int fd, char *message, ...) ;
|
||||
extern int serialDataAvail (int fd) ;
|
||||
extern int serialGetchar (int fd) ;
|
||||
extern int serialOpen (const char *device, const int baud) ;
|
||||
extern void serialClose (const int fd) ;
|
||||
extern void serialFlush (const int fd) ;
|
||||
extern void serialPutchar (const int fd, const unsigned char c) ;
|
||||
extern void serialPuts (const int fd, const char *s) ;
|
||||
extern void serialPrintf (const int fd, const char *message, ...) ;
|
||||
extern int serialDataAvail (const int fd) ;
|
||||
extern int serialGetchar (const int fd) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
|
|
|
@ -56,7 +56,6 @@ uint8_t shiftIn (uint8_t dPin, uint8_t cPin, uint8_t order)
|
|||
return value;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* shiftOut:
|
||||
* Shift data out to a clocked source
|
||||
|
|
|
@ -33,8 +33,8 @@
|
|||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern uint8_t shiftIn (uint8_t dPin, uint8_t cPin, uint8_t order) ;
|
||||
extern void shiftOut (uint8_t dPin, uint8_t cPin, uint8_t order, uint8_t val) ;
|
||||
extern uint8_t shiftIn (uint8_t dPin, uint8_t cPin, uint8_t order) ;
|
||||
extern void shiftOut (uint8_t dPin, uint8_t cPin, uint8_t order, uint8_t val) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue