Added support for the Pimoroni scrollPhat
Added support for the ADS1115 16-bit ADC Updated the gpio readall command to correctly with with the Compute Module and fixed a resulting bug in wiringPi...
This commit is contained in:
parent
78b5c323b7
commit
143b383b8d
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@ -48,11 +48,13 @@ LIBS =
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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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scrollPhat.c \
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piGlow.c
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OBJ = $(SRC:.c=.o)
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HEADERS = ds1302.h gertboard.h lcd128x64.h lcd.h maxdetect.h piFace.h piGlow.h piNes.h
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HEADERS = ds1302.h gertboard.h lcd128x64.h lcd.h maxdetect.h piFace.h piGlow.h piNes.h\
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scrollPhat.h
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all: $(DYNAMIC)
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@ -134,4 +136,5 @@ 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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scrollPhat.o: scrollPhatFont.h scrollPhat.h
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piGlow.o: piGlow.h
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@ -0,0 +1,430 @@
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/*
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* scrollPhat.c:
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* Simple driver for the Pimoroni Scroll Phat device
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*
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* Copyright (c) 2015 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 <stdarg.h>
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#include <string.h>
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#include <time.h>
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#include <wiringPiI2C.h>
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#include "scrollPhatFont.h"
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#include "scrollPhat.h"
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// Size
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#define SP_WIDTH 11
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#define SP_HEIGHT 5
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// I2C
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#define PHAT_I2C_ADDR 0x60
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// Software copy of the framebuffer
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// it's 8-bit deep although the display itself is only 1-bit deep.
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static unsigned char frameBuffer [SP_WIDTH * SP_HEIGHT] ;
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static int lastX, lastY ;
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static int printDelayFactor ;
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static int scrollPhatFd ;
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static int putcharX ;
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#undef DEBUG
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/*
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* delay:
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* Wait for some number of milliseconds.
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* This taken from wiringPi as there is no-need to include the whole of
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* wiringPi just for the delay function.
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*********************************************************************************
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*/
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static void delay (unsigned int howLong)
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{
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struct timespec sleeper, dummy ;
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sleeper.tv_sec = (time_t)(howLong / 1000) ;
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sleeper.tv_nsec = (long)(howLong % 1000) * 1000000 ;
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nanosleep (&sleeper, &dummy) ;
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}
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/*
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* scrollPhatUpdate:
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* Copy our software version to the real display
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*********************************************************************************
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*/
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void scrollPhatUpdate (void)
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{
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register int x, y ;
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register unsigned char data, pixel ;
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unsigned char pixels [SP_WIDTH] ;
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#ifdef DEBUG
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printf ("+-----------+\n") ;
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for (y = 0 ; y < SP_HEIGHT ; ++y)
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{
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putchar ('|') ;
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for (x = 0 ; x < SP_WIDTH ; ++x)
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{
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pixel = frameBuffer [x + y * SP_WIDTH] ;
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putchar (pixel == 0 ? ' ' : '*') ;
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}
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printf ("|\n") ;
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}
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printf ("+-----------+\n") ;
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#endif
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for (x = 0 ; x < SP_WIDTH ; ++x)
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{
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data = 0 ;
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for (y = 0 ; y < SP_HEIGHT ; ++y)
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{
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pixel = frameBuffer [x + y * SP_WIDTH] ;
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data = (data << 1) | ((pixel == 0) ? 0 : 1) ;
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}
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pixels [x] = data ;
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}
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for (x = 0 ; x < SP_WIDTH ; ++x)
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wiringPiI2CWriteReg8 (scrollPhatFd, 1 + x, pixels [x]) ;
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wiringPiI2CWriteReg8 (scrollPhatFd, 0x0C, 0) ;
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}
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/*
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*********************************************************************************
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* Standard Graphical Functions
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*********************************************************************************
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*/
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/*
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* scrollPhatPoint:
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* Plot a pixel. Crude clipping - speed is not the essence here.
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*********************************************************************************
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*/
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void scrollPhatPoint (int x, int y, int colour)
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{
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lastX = x ;
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lastY = y ;
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if ((x < 0) || (x >= SP_WIDTH) || (y < 0) || (y >= SP_HEIGHT))
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return ;
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frameBuffer [x + y * SP_WIDTH] = colour ;
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}
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/*
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* scrollPhatLine: scrollPhatLineTo:
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* Classic Bressenham Line code - rely on the point function to do the
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* clipping for us here.
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*********************************************************************************
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*/
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void scrollPhatLine (int x0, int y0, int x1, int y1, int colour)
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{
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int dx, dy ;
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int sx, sy ;
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int err, e2 ;
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lastX = x1 ;
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lastY = y1 ;
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dx = abs (x1 - x0) ;
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dy = abs (y1 - y0) ;
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sx = (x0 < x1) ? 1 : -1 ;
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sy = (y0 < y1) ? 1 : -1 ;
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err = dx - dy ;
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for (;;)
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{
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scrollPhatPoint (x0, y0, colour) ;
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if ((x0 == x1) && (y0 == y1))
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break ;
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e2 = 2 * err ;
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if (e2 > -dy)
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{
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err -= dy ;
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x0 += sx ;
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}
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if (e2 < dx)
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{
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err += dx ;
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y0 += sy ;
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}
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}
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}
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void scrollPhatLineTo (int x, int y, int colour)
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{
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scrollPhatLine (lastX, lastY, x, y, colour) ;
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}
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/*
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* scrollPhatRectangle:
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* A rectangle is a spoilt days fishing
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*********************************************************************************
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*/
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void scrollPhatRectangle (int x1, int y1, int x2, int y2, int colour, int filled)
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{
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register int x ;
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if (filled)
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{
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/**/ if (x1 == x2)
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scrollPhatLine (x1, y1, x2, y2, colour) ;
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else if (x1 < x2)
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for (x = x1 ; x <= x2 ; ++x)
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scrollPhatLine (x, y1, x, y2, colour) ;
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else
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for (x = x2 ; x <= x1 ; ++x)
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scrollPhatLine (x, y1, x, y2, colour) ;
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}
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else
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{
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scrollPhatLine (x1, y1, x2, y1, colour) ;
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scrollPhatLineTo (x2, y2, colour) ;
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scrollPhatLineTo (x1, y2, colour) ;
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scrollPhatLineTo (x1, y1, colour) ;
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}
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}
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/*
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* scrollPhatPutchar:
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* Print a single character to the screen then advance the pointer by an
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* appropriate ammount (variable width font).
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* We rely on the clipping done by the pixel plot function to keep us
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* out of trouble.
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* Return the width + space
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*********************************************************************************
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*/
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int scrollPhatPutchar (int c)
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{
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register int x, y ;
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unsigned char line ;
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unsigned char *fontPtr ;
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unsigned char *p2 ;
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int lineWidth, width, mask ;
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// The font is printable characters, uppercase only...
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// and somewhat varaible width...
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c &= 0x7F ;
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if (c > 0x60)
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c -= 64 ;
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else
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c -= 32 ;
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fontPtr = scrollPhatFont + c * fontHeight ;
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// Work out width of this character
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// There probably is a more efficient way to do this, but...
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p2 = fontPtr ;
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width = 0 ;
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for (y = 0 ; y < fontHeight ; ++y)
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{
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mask = 0x80 ;
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for (lineWidth = 8 ; lineWidth > 0 ; --lineWidth)
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{
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if ((*p2 & mask) != 0)
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break ;
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mask >>= 1 ;
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}
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if (lineWidth > width)
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width = lineWidth ;
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++p2 ;
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}
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if (width == 0) // Likely to be a blank or space character
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width = 3 ;
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for (y = fontHeight - 1 ; y >= 0 ; --y)
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{
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x = 0 ;
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line = *fontPtr++ ;
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for (mask = 1 << (width - 1) ; mask != 0 ; mask >>= 1)
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{
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scrollPhatPoint (putcharX + x, y, (line & mask)) ;
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++x ;
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}
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}
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// make a line of space
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for (y = fontHeight - 1 ; y >= 0 ; --y)
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scrollPhatPoint (putcharX + width, y, 0) ;
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putcharX = putcharX + width + 1 ;
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return width + 1 ;
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}
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/*
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* scrollPhatPuts:
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* Send a string to the display - and scroll it across.
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* This is somewhat of a hack in that we print the entire string to the
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* display and let the point clipping take care of what's off-screen...
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*********************************************************************************
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*/
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void scrollPhatPuts (const char *str)
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{
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int i ;
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int movingX = 0 ;
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const char *s ;
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int pixelLen ;
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// Print it once, then we know the width in pixels...
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putcharX = 0 ;
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s = str ;
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while (*s)
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scrollPhatPutchar (*s++) ;
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pixelLen = putcharX ;
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// Now scroll it by printing it and moving left one pixel
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movingX = 0 ;
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for (i = 0 ; i < pixelLen ; ++i)
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{
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putcharX = movingX ;
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s = str ;
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while (*s)
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scrollPhatPutchar (*s++) ;
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--movingX ;
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scrollPhatUpdate () ;
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delay (printDelayFactor) ;
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}
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}
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/*
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* scrollPhatPrintf:
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* Does what it says
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*********************************************************************************
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*/
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void scrollPhatPrintf (const char *message, ...)
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{
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va_list argp ;
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char buffer [1024] ;
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va_start (argp, message) ;
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vsnprintf (buffer, 1023, message, argp) ;
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va_end (argp) ;
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scrollPhatPuts (buffer) ;
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}
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/*
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* scrollPhatPrintSpeed:
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* Change the print speed - mS per shift by 1 pixel
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*********************************************************************************
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*/
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void scrollPhatPrintSpeed (const int pps)
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{
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if (pps < 0)
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printDelayFactor = 0 ;
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else
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printDelayFactor = pps ;
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}
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/*
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* scrollPhatClear:
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* Clear the display
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*********************************************************************************
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*/
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void scrollPhatClear (void)
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{
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register int i ;
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register unsigned char *ptr = frameBuffer ;
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for (i = 0 ; i < (SP_WIDTH * SP_HEIGHT) ; ++i)
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*ptr++ = 0 ;
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scrollPhatUpdate () ;
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}
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/*
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* scrollPhatIntensity:
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* Set the display brightness - percentage
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*********************************************************************************
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*/
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void scrollPhatIntensity (const int percent)
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{
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wiringPiI2CWriteReg8 (scrollPhatFd, 0x19, (127 * percent) / 100) ;
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}
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/*
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* scrollPhatSetup:
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* Initialise the Scroll Phat display
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*********************************************************************************
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*/
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int scrollPhatSetup (void)
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{
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if ((scrollPhatFd = wiringPiI2CSetup (PHAT_I2C_ADDR)) < 0)
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return scrollPhatFd ;
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wiringPiI2CWriteReg8 (scrollPhatFd, 0x00, 0x03) ; // Enable display, set to 5x11 mode
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scrollPhatIntensity (10) ;
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scrollPhatClear () ;
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scrollPhatPrintSpeed (100) ;
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return 0 ;
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}
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@ -0,0 +1,39 @@
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/*
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* scrollPhat.h:
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* Simple driver for the Pimoroni Scroll Phat device
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*
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* Copyright (c) 2015 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
|
||||
* 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.
|
||||
*
|
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* 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/>.
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***********************************************************************
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*/
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extern void scrollPhatPoint (int x, int y, int colour) ;
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extern void scrollPhatLine (int x0, int y0, int x1, int y1, int colour) ;
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extern void scrollPhatLineTo (int x, int y, int colour) ;
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extern void scrollPhatRectangle (int x1, int y1, int x2, int y2, int colour, int filled) ;
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extern void scrollPhatUpdate (void) ;
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extern void scrollPhatClear (void) ;
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extern int scrollPhatPutchar (int c) ;
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//extern void scrollPhatPutchar (int c) ;
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extern void scrollPhatPuts (const char *str) ;
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extern void scrollPhatPrintf (const char *message, ...) ;
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extern void scrollPhatPrintSpeed (const int cps10) ;
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extern void scrollPhatIntensity (const int percent) ;
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extern int scrollPhatSetup (void) ;
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@ -0,0 +1,544 @@
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/*
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* scrollPhatFont.h:
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* Simple font for the Pimoroni Scroll Phat.
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* Note: this is a very much reduced font - 5 pixels high and
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* mostly 4 pixels wide - sometimes 5. Also only
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* printable characters from space to _ uppercase only.
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*
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* Copyright (c) 2015-2016 Gordon Henderson.
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***********************************************************************
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* 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/>.
|
||||
***********************************************************************
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*/
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static const int fontHeight = 5 ;
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static unsigned char scrollPhatFont [] =
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{
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// 0x20, Space. Handeled as a special case in the code.
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0x0, // ....
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0x0, // ....
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0x0, // ....
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0x0, // ....
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0x0, // ....
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// 0x21, !
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0x1, // *
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0x1, // *
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0x1, // *
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0x0, // .
|
||||
0x1, // *
|
||||
|
||||
// 0x22, "
|
||||
|
||||
0x5, // *..*
|
||||
0x5, // *..*
|
||||
0x0, // ....
|
||||
0x0, // ....
|
||||
0x0, // ....
|
||||
|
||||
// 0x23, #
|
||||
|
||||
0x9, // *..*
|
||||
0xF, // ****
|
||||
0x9, // *..*
|
||||
0xF, // ****
|
||||
0x9, // *..*
|
||||
|
||||
// 0x24, $
|
||||
|
||||
0x1, // ...*
|
||||
0x7, // .***
|
||||
0x2, // ..*.
|
||||
0xE, // ***.
|
||||
0x8, // *...
|
||||
|
||||
// 0x25, %
|
||||
|
||||
0x9, // *..*
|
||||
0x1, // ...*
|
||||
0x6, // .**.
|
||||
0x8, // *...
|
||||
0x9, // *..*
|
||||
|
||||
// 0x26, &
|
||||
|
||||
0x6, // .**.
|
||||
0x8, // *...
|
||||
0x4, // .*..
|
||||
0xA, // *.*.
|
||||
0x5, // .*.*
|
||||
|
||||
// 0x27, '
|
||||
|
||||
0x1, // .*
|
||||
0x2, // *.
|
||||
0x0, // ..
|
||||
0x0, // ..
|
||||
0x0, // ..
|
||||
|
||||
// 0x28, (
|
||||
|
||||
0x3, // ..**
|
||||
0x4, // .*..
|
||||
0x8, // *...
|
||||
0x4, // .*..
|
||||
0x3, // ..**
|
||||
|
||||
// 0x29, )
|
||||
|
||||
0xC, // **..
|
||||
0x2, // ..*.
|
||||
0x1, // ...*
|
||||
0x2, // ..*.
|
||||
0xC, // **..
|
||||
|
||||
// 0x2A, *
|
||||
|
||||
0x9, // *..*
|
||||
0x6, // .**.
|
||||
0xF, // ****
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
|
||||
// 0x2B, +
|
||||
|
||||
0x6, // .**.
|
||||
0x6, // .**.
|
||||
0xF, // ****
|
||||
0x6, // .**.
|
||||
0x6, // .**.
|
||||
|
||||
// 0x2C, ,
|
||||
|
||||
0x0, // ..
|
||||
0x0, // ..
|
||||
0x0, // ..
|
||||
0x1, // .*
|
||||
0x2, // *.
|
||||
|
||||
// 0x2D, -
|
||||
|
||||
0x0, // ....
|
||||
0x0, // ....
|
||||
0xF, // ****
|
||||
0x0, // ....
|
||||
0x0, // ....
|
||||
|
||||
// 0x2E, .
|
||||
|
||||
0x0, // .
|
||||
0x0, // .
|
||||
0x0, // .
|
||||
0x0, // .
|
||||
0x1, // *
|
||||
|
||||
// 0x2F, /
|
||||
|
||||
0x1, // ...*
|
||||
0x3, // ..**
|
||||
0x4, // ..*.
|
||||
0xC, // **..
|
||||
0x8, // *...
|
||||
|
||||
// 0x30, 0
|
||||
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0x6, // .**.
|
||||
|
||||
// 0x31, 1
|
||||
|
||||
0x2, // ..*.
|
||||
0x6, // .**.
|
||||
0x2, // ..*.
|
||||
0x2, // ..*.
|
||||
0x7, // .***
|
||||
|
||||
// 0x32, 2
|
||||
|
||||
0x6, // .**.
|
||||
0x1, // ...*
|
||||
0x6, // .**.
|
||||
0x8, // *...
|
||||
0xF, // ****
|
||||
|
||||
// 0x33, 3
|
||||
|
||||
0xE, // ***.
|
||||
0x1, // ...*
|
||||
0xE, // ***.
|
||||
0x1, // ...*
|
||||
0xE, // ***.
|
||||
|
||||
// 0x34, 4
|
||||
|
||||
0x6, // .**.
|
||||
0xA, // *.*.
|
||||
0xF, // ****
|
||||
0x2, // ..*.
|
||||
0x2, // ..*.
|
||||
|
||||
// 0x35, 5
|
||||
|
||||
0xF, // ****
|
||||
0x8, // *...
|
||||
0xF, // ****
|
||||
0x1, // ...*
|
||||
0xE, // ***.
|
||||
|
||||
// 0x36, 6
|
||||
|
||||
0x2, // ..*.
|
||||
0x4, // .*..
|
||||
0xA, // *.*.
|
||||
0x9, // *..*
|
||||
0x6, // .**.
|
||||
|
||||
// 0x37, 7
|
||||
|
||||
0xF, // ****
|
||||
0x1, // ...*
|
||||
0x2, // ..*.
|
||||
0x4, // .*..
|
||||
0x8, // *...
|
||||
|
||||
// 0x38, 8
|
||||
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
0x6, // .**.
|
||||
|
||||
// 0x39, 9
|
||||
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
0x7, // .*.*
|
||||
0x1, // ..*.
|
||||
0x2, // .*..
|
||||
|
||||
// 0x3A, :
|
||||
|
||||
0x0, // .
|
||||
0x1, // *
|
||||
0x0, // .
|
||||
0x1, // *
|
||||
0x0, // .
|
||||
|
||||
// 0x3B, ;
|
||||
|
||||
0x0, // ..
|
||||
0x1, // .*
|
||||
0x0, // ..
|
||||
0x1, // .*
|
||||
0x2, // *.
|
||||
|
||||
// 0x3C, <
|
||||
|
||||
0x2, // ..*.
|
||||
0x4, // .*..
|
||||
0x8, // *...
|
||||
0x4, // .*..
|
||||
0x2, // ..*.
|
||||
|
||||
// 0x3D, =
|
||||
|
||||
0x0, // ....
|
||||
0xF, // ****
|
||||
0x0, // ....
|
||||
0xF, // ****
|
||||
0x0, // ....
|
||||
|
||||
// 0x3E, >
|
||||
|
||||
0x0, // .*..
|
||||
0x0, // ..*.
|
||||
0x0, // ...*
|
||||
0x0, // ..*.
|
||||
0x0, // .*..
|
||||
|
||||
// 0x3F, ?
|
||||
|
||||
0x6, // .**.
|
||||
0x1, // ...*
|
||||
0x2, // ..*.
|
||||
0x0, // ....
|
||||
0x2, // ..*.
|
||||
|
||||
// 0x40, @
|
||||
|
||||
0x6, // .**.
|
||||
0xD, // **.*
|
||||
0x8, // *...
|
||||
0x4, // .*..
|
||||
0x3, // ..**
|
||||
|
||||
// 0x41, A
|
||||
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
0xF, // ****
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
|
||||
// 0x42, B
|
||||
|
||||
0xE, // ***.
|
||||
0x9, // *..*
|
||||
0xE, // ***.
|
||||
0x9, // *..*
|
||||
0xE, // ***.
|
||||
|
||||
// 0x43, C
|
||||
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
0x8, // *...
|
||||
0x9, // *..*
|
||||
0x6, // .**.
|
||||
|
||||
// 0x44, D
|
||||
|
||||
0xE, // ***.
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0xE, // ***.
|
||||
|
||||
// 0x45, E
|
||||
|
||||
0xF, // ****
|
||||
0x8, // *...
|
||||
0xE, // ***.
|
||||
0x8, // *...
|
||||
0xF, // ****
|
||||
|
||||
// 0x46, F
|
||||
|
||||
0xF, // ****
|
||||
0x8, // *...
|
||||
0xE, // ***.
|
||||
0x8, // *...
|
||||
0x8, // *...
|
||||
|
||||
// 0x47, G
|
||||
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
0x8, // *...
|
||||
0xB, // *.**
|
||||
0x6, // .**.
|
||||
|
||||
// 0x48, H
|
||||
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0xF, // ****
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
|
||||
// 0x49, I
|
||||
|
||||
0x7, // ***
|
||||
0x2, // .*.
|
||||
0x2, // .*.
|
||||
0x2, // .*.
|
||||
0x7, // ***
|
||||
|
||||
// 0x4A, J
|
||||
|
||||
0x7, // .***
|
||||
0x2, // ..*.
|
||||
0x2, // ..*.
|
||||
0xA, // *.*.
|
||||
0x4, // .*..
|
||||
|
||||
// 0x4B, K
|
||||
|
||||
0x9, // *..*
|
||||
0xA, // *.*.
|
||||
0xC, // **..
|
||||
0xA, // *.*.
|
||||
0x9, // *..*
|
||||
|
||||
// 0x4C, L
|
||||
|
||||
0x4, // *..
|
||||
0x4, // *..
|
||||
0x4, // *..
|
||||
0x4, // *..
|
||||
0x7, // ***
|
||||
|
||||
// 0x4D, M
|
||||
|
||||
0x11, // *...*
|
||||
0x1B, // **.**
|
||||
0x15, // *.*.*
|
||||
0x11, // *...*
|
||||
0x11, // *...*
|
||||
|
||||
// 0x4E, N
|
||||
|
||||
0x9, // *..*
|
||||
0xD, // **.*
|
||||
0xB, // *.**
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
|
||||
// 0x4F, O
|
||||
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0x6, // .**.
|
||||
|
||||
// 0x50, P
|
||||
|
||||
0xE, // ***.
|
||||
0x9, // *..*
|
||||
0xE, // ***.
|
||||
0x8, // *...
|
||||
0x8, // *...
|
||||
|
||||
// 0x51, Q
|
||||
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0xA, // *.*.
|
||||
0x5, // .*.*
|
||||
|
||||
// 0x52, R
|
||||
|
||||
0xE, // ***.
|
||||
0x9, // *..*
|
||||
0xF, // ***.
|
||||
0xA, // *.*.
|
||||
0x9, // *..*
|
||||
|
||||
// 0x53, S
|
||||
|
||||
0x6, // .**.
|
||||
0x8, // *...
|
||||
0x6, // .**.
|
||||
0x1, // ...*
|
||||
0x6, // .**.
|
||||
|
||||
// 0x54, T
|
||||
|
||||
0x7, // .***
|
||||
0x2, // ..*.
|
||||
0x2, // ..*.
|
||||
0x2, // ..*.
|
||||
0x2, // ..*.
|
||||
|
||||
// 0x55, U
|
||||
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0x6, // .**.
|
||||
|
||||
// 0x56, V
|
||||
|
||||
0x11, // *...*
|
||||
0x11, // *...*
|
||||
0x11, // *...*
|
||||
0x0A, // .*.*.
|
||||
0x04, // ..*..
|
||||
|
||||
// 0x57, W
|
||||
|
||||
0x11, // *...*
|
||||
0x11, // *...*
|
||||
0x11, // *...*
|
||||
0x15, // *.*.*
|
||||
0x1B, // **.**
|
||||
|
||||
// 0x58, X
|
||||
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
0x9, // *..*
|
||||
|
||||
// 0x59, Y
|
||||
|
||||
0x11, // *...*
|
||||
0x0A, // .*.*.
|
||||
0x04, // ..*..
|
||||
0x04, // ..*..
|
||||
0x04, // ..*..
|
||||
|
||||
// 0x5A, Z
|
||||
|
||||
0xF, // ****
|
||||
0x1, // ...*
|
||||
0x6, // .**.
|
||||
0x8, // *...
|
||||
0xF, // ****
|
||||
|
||||
// 0x5B, [
|
||||
|
||||
0xE, // ***.
|
||||
0x8, // *...
|
||||
0x8, // *...
|
||||
0x8, // *...
|
||||
0xE, // ***.
|
||||
|
||||
// 0x5C, Backslash
|
||||
|
||||
0x8, // *...
|
||||
0xC, // **..
|
||||
0x6, // .**.
|
||||
0x3, // ..**
|
||||
0x1, // ...*
|
||||
|
||||
// 0x5D, ]
|
||||
|
||||
0x7, // .***
|
||||
0x1, // ...*
|
||||
0x1, // ...*
|
||||
0x1, // ...*
|
||||
0x7, // .***
|
||||
|
||||
// 0x5E, ^
|
||||
|
||||
0x6, // .**.
|
||||
0x9, // *..*
|
||||
0x0, // ....
|
||||
0x0, // ....
|
||||
0x0, // ....
|
||||
|
||||
// 0x5F, _
|
||||
|
||||
0x0, // ....
|
||||
0x0, // ....
|
||||
0x0, // ....
|
||||
0x0, // ....
|
||||
0xF, // ****
|
||||
} ;
|
|
@ -0,0 +1,79 @@
|
|||
#
|
||||
# Makefile:
|
||||
# wiringPi - Wiring Compatable library for the Raspberry Pi
|
||||
# https://projects.drogon.net/wiring-pi
|
||||
#
|
||||
# Copyright (c) 2012-2015 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/>.
|
||||
#################################################################################
|
||||
|
||||
ifneq ($V,1)
|
||||
Q ?= @
|
||||
endif
|
||||
|
||||
#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 = scphat.c test.c
|
||||
|
||||
OBJ = $(SRC:.c=.o)
|
||||
|
||||
BINS = $(SRC:.c=)
|
||||
|
||||
all: $(BINS)
|
||||
|
||||
test: test.o
|
||||
$Q echo [link]
|
||||
$Q $(CC) -o $@ test.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
scphat: scphat.o
|
||||
$Q echo [link]
|
||||
$Q $(CC) -o $@ scphat.o $(LDFLAGS) $(LDLIBS)
|
||||
|
||||
|
||||
.c.o:
|
||||
$Q echo [CC] $<
|
||||
$Q $(CC) -c $(CFLAGS) $< -o $@
|
||||
|
||||
clean:
|
||||
$Q echo "[Clean]"
|
||||
$Q rm -f $(OBJ) *~ core tags $(BINS)
|
||||
|
||||
tags: $(SRC)
|
||||
$Q echo [ctags]
|
||||
$Q ctags $(SRC)
|
||||
|
||||
install: scphat
|
||||
$Q echo Installing scphat into /usr/local/bin
|
||||
$Q cp -a scphat /usr/local/bin/scphat
|
||||
$Q chmod 755 /usr/local/bin/scphat
|
||||
$Q echo Done. Remember to load the I2C drivers if needed.
|
||||
|
||||
depend:
|
||||
makedepend -Y $(SRC)
|
||||
|
||||
# DO NOT DELETE
|
|
@ -0,0 +1,230 @@
|
|||
/*
|
||||
* scphat.c:
|
||||
* Little program to allow use of the Pimoroni Sctoll Phat
|
||||
* from the command-line.
|
||||
*
|
||||
* Copyright (c) 2015-2016 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 <errno.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <scrollPhat.h>
|
||||
|
||||
static char *progName ;
|
||||
|
||||
|
||||
/*
|
||||
* checkArgs:
|
||||
* Count the arguments for each little function
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void checkArgs (char *command, int num, int arg, int argc)
|
||||
{
|
||||
if ((arg + num) < argc)
|
||||
return ;
|
||||
|
||||
fprintf (stderr, "%s: Not enough data for %s command.\n", progName, command) ;
|
||||
exit (EXIT_FAILURE) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doClear:
|
||||
* Clear the display
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doClear (void)
|
||||
{
|
||||
scrollPhatClear () ;
|
||||
return 1 ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doBright
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doBright (int arg, int argc, char *argv [])
|
||||
{
|
||||
checkArgs ("bright", 1, arg, argc) ;
|
||||
scrollPhatIntensity (atoi (argv [arg+1])) ;
|
||||
return 2 ;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* doPlot
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doPlot (int arg, int argc, char *argv [])
|
||||
{
|
||||
checkArgs ("plot", 2, arg, argc) ;
|
||||
scrollPhatPoint (atoi (argv [arg+1]), atoi (argv [arg+2]), 1) ;
|
||||
scrollPhatUpdate () ;
|
||||
return 3 ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doLine
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doLine (int arg, int argc, char *argv [])
|
||||
{
|
||||
checkArgs ("line", 4, arg, argc) ;
|
||||
scrollPhatLine (atoi (argv [arg+1]), atoi (argv [arg+2]),
|
||||
atoi (argv [arg+3]), atoi (argv [arg+4]), 1) ;
|
||||
scrollPhatUpdate () ;
|
||||
return 5 ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doLineTo
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doLineTo (int arg, int argc, char *argv [])
|
||||
{
|
||||
checkArgs ("lineto", 2, arg, argc) ;
|
||||
scrollPhatLineTo (atoi (argv [arg+1]), atoi (argv [arg+2]), 1) ;
|
||||
scrollPhatUpdate () ;
|
||||
return 3 ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doWait
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doWait (int arg, int argc, char *argv [])
|
||||
{
|
||||
checkArgs ("wait", 1, arg, argc) ;
|
||||
delay (atoi (argv [arg+1]) * 100) ;
|
||||
scrollPhatUpdate () ;
|
||||
return 2 ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doSpeed
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doSpeed (int arg, int argc, char *argv [])
|
||||
{
|
||||
checkArgs ("speed", 1, arg, argc) ;
|
||||
scrollPhatPrintSpeed (atoi (argv [arg+1])) ;
|
||||
return 2 ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doScroll
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doScroll (int arg, int argc, char *argv [])
|
||||
{
|
||||
checkArgs ("scroll", 1, arg, argc) ;
|
||||
scrollPhatPuts (argv [arg+1]) ;
|
||||
return 2 ;
|
||||
}
|
||||
|
||||
|
||||
static void failUsage (void)
|
||||
{
|
||||
fprintf (stderr, "Usage: %s command [paremters] ...\n", progName) ;
|
||||
fprintf (stderr, " commands:\n") ;
|
||||
fprintf (stderr, " clear/cls - Clear the display\n") ;
|
||||
fprintf (stderr, " bright N - Set display brightness; 1-100\n") ;
|
||||
fprintf (stderr, " plot X Y - Set a single pixel at location X Y; 0-10, 0-4\n") ;
|
||||
fprintf (stderr, " line X1 Y1 X2 Y2 - Draw a line from the 2 points\n") ;
|
||||
fprintf (stderr, " lineto X2 Y2 - Draw a line from the last point to the new one\n") ;
|
||||
fprintf (stderr, " wait/delay N - Wait for N 10ths seconds\n") ;
|
||||
fprintf (stderr, " speed N - Set scrolling speed (cps)\n") ;
|
||||
fprintf (stderr, " scroll S - Scroll the given string\n") ;
|
||||
fprintf (stderr, "\n") ;
|
||||
fprintf (stderr, " Example: %s plot 0 0 wait 50 scroll \" Hello \"\n", progName) ;
|
||||
exit (EXIT_FAILURE) ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* the works
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int main (int argc, char *argv [])
|
||||
{
|
||||
int arg = 1 ;
|
||||
char *command ;
|
||||
|
||||
progName = argv [0] ;
|
||||
|
||||
wiringPiSetupSys () ;
|
||||
|
||||
if (scrollPhatSetup () != 0)
|
||||
{
|
||||
fprintf (stderr, "%s: Unable to initialise the scrollPhat: %s\n", progName, strerror (errno)) ;
|
||||
exit (EXIT_FAILURE) ;
|
||||
}
|
||||
|
||||
progName = argv [0] ;
|
||||
|
||||
if (argc < 2)
|
||||
{
|
||||
fprintf (stderr, "%s: Nothing to do...\n", argv [0]) ;
|
||||
failUsage () ;
|
||||
}
|
||||
|
||||
while (arg != argc)
|
||||
{
|
||||
command = argv [arg] ;
|
||||
/**/ if (strcasecmp (command, "clear") == 0) arg += doClear () ;
|
||||
else if (strcasecmp (command, "cls") == 0) arg += doClear () ;
|
||||
else if (strcasecmp (command, "bright") == 0) arg += doBright (arg, argc, argv) ;
|
||||
else if (strcasecmp (command, "plot") == 0) arg += doPlot (arg, argc, argv) ;
|
||||
else if (strcasecmp (command, "line") == 0) arg += doLine (arg, argc, argv) ;
|
||||
else if (strcasecmp (command, "lineto") == 0) arg += doLineTo (arg, argc, argv) ;
|
||||
else if (strcasecmp (command, "wait") == 0) arg += doWait (arg, argc, argv) ;
|
||||
else if (strcasecmp (command, "delay") == 0) arg += doWait (arg, argc, argv) ;
|
||||
else if (strcasecmp (command, "speed") == 0) arg += doSpeed (arg, argc, argv) ;
|
||||
else if (strcasecmp (command, "scroll") == 0) arg += doScroll (arg, argc, argv) ;
|
||||
else
|
||||
{
|
||||
fprintf (stderr, "%s: Unknown command: %s.\n", argv [0], argv [arg]) ;
|
||||
failUsage () ;
|
||||
}
|
||||
}
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,115 @@
|
|||
/*
|
||||
* test.c:
|
||||
* Little test program forthe Pimoroni Scroll Phat.
|
||||
*
|
||||
* Copyright (c) 2015-2016 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 <errno.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <scrollPhat.h>
|
||||
|
||||
|
||||
/*
|
||||
* prompt:
|
||||
* Simple prompt & wait
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void prompt (const char *p)
|
||||
{
|
||||
printf (" %s. Press ENTER: ", p) ;
|
||||
(void)getchar () ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* the works
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int main (void)
|
||||
{
|
||||
int x, y ;
|
||||
|
||||
printf ("\n") ;
|
||||
printf ("Scroll Phat Test program\n") ;
|
||||
printf ("========================\n") ;
|
||||
|
||||
if (scrollPhatSetup () != 0)
|
||||
{
|
||||
printf ("Unable to initialise the scrollPhat: %s\n", strerror (errno)) ;
|
||||
exit (1) ;
|
||||
}
|
||||
|
||||
printf ("-> Scroll Phat initialised OK\n") ;
|
||||
printf ("... Basic display tests.\n\n") ;
|
||||
|
||||
prompt ("Display ought to be blank") ;
|
||||
|
||||
// Light all pixels using one point at a time
|
||||
|
||||
for (y = 0 ; y < 5 ; ++y)
|
||||
for (x = 0 ; x < 12 ; ++x)
|
||||
scrollPhatPoint (x, y, 1) ;
|
||||
scrollPhatUpdate () ;
|
||||
|
||||
prompt ("Display ought to be all lit-up") ;
|
||||
|
||||
// Big rectangle
|
||||
|
||||
scrollPhatClear () ;
|
||||
scrollPhatRectangle (0,0, 10, 4, 1, 0) ;
|
||||
scrollPhatUpdate () ;
|
||||
|
||||
prompt ("There should now be a rectangle round the outside") ;
|
||||
|
||||
scrollPhatLine (0,0, 10,4, 1) ;
|
||||
scrollPhatLine (0,4, 10,0, 1) ;
|
||||
scrollPhatUpdate () ;
|
||||
|
||||
prompt ("Diagonal lines") ;
|
||||
|
||||
scrollPhatIntensity (1) ;
|
||||
|
||||
prompt ("Minimum brightness") ;
|
||||
|
||||
scrollPhatIntensity (100) ;
|
||||
|
||||
prompt ("Maximum brightness") ;
|
||||
|
||||
scrollPhatIntensity (10) ;
|
||||
|
||||
prompt ("Default brightness") ;
|
||||
|
||||
scrollPhatClear () ;
|
||||
|
||||
printf (" Message Test...Press Ctrl-C to exit: ") ;
|
||||
fflush (stdout) ;
|
||||
|
||||
scrollPhatPrintSpeed (20) ;
|
||||
for (;;)
|
||||
scrollPhatPuts (" Welcome to the scroll phat from Pimoroni ") ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -223,19 +223,20 @@ void cmReadall (void)
|
|||
printf ("| Pin | Mode | Value | | Pin | Mode | Value |\n") ;
|
||||
printf ("+-----+------+-------+ +-----+------+-------+\n") ;
|
||||
|
||||
for (pin = 0 ; pin < 28 ; ++pin)
|
||||
for (pin = 0 ; pin < 27 ; ++pin)
|
||||
{
|
||||
printf ("| %3d ", pin) ;
|
||||
printf ("| %-4s ", alts [getAlt (pin)]) ;
|
||||
printf ("| %s ", digitalRead (pin) == HIGH ? "High" : "Low ") ;
|
||||
printf ("| ") ;
|
||||
printf ("| %3d ", pin + 28) ;
|
||||
printf ("| %-4s ", alts [getAlt (pin + 28)]) ;
|
||||
printf ("| %s ", digitalRead (pin + 28) == HIGH ? "High" : "Low ") ;
|
||||
printf ("| %3d ", pin + 27) ;
|
||||
printf ("| %-4s ", alts [getAlt (pin + 27)]) ;
|
||||
printf ("| %s ", digitalRead (pin + 27) == HIGH ? "High" : "Low ") ;
|
||||
printf ("|\n") ;
|
||||
}
|
||||
|
||||
printf ("+-----+------+-------+ +-----+------+-------+\n") ;
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
|
|
@ -55,7 +55,7 @@ SRC = wiringPi.c \
|
|||
sr595.c \
|
||||
pcf8574.c pcf8591.c \
|
||||
mcp3002.c mcp3004.c mcp4802.c mcp3422.c \
|
||||
max31855.c max5322.c \
|
||||
max31855.c max5322.c ads1115.c \
|
||||
sn3218.c \
|
||||
drcSerial.c \
|
||||
wpiExtensions.c
|
||||
|
@ -69,7 +69,7 @@ HEADERS = wiringPi.h \
|
|||
sr595.h \
|
||||
pcf8574.h pcf8591.h \
|
||||
mcp3002.h mcp3004.h mcp4802.h mcp3422.h \
|
||||
max31855.h max5322.h \
|
||||
max31855.h max5322.h ads1115.h \
|
||||
sn3218.h \
|
||||
drcSerial.h \
|
||||
wpiExtensions.h
|
||||
|
|
|
@ -0,0 +1,293 @@
|
|||
/*
|
||||
* ads1115.c:
|
||||
* Extend wiringPi with the ADS1115 I2C 16-bit ADC
|
||||
* Copyright (c) 2016 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/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
/*
|
||||
*********************************************************************************
|
||||
* We're going to work in a hybrid mode to fit in with the wiringPi way of
|
||||
* doing things, so there will be 4 analog pin which read the 4 single-ended
|
||||
* channels as usual, also some fake digitalOutputs - these are the control
|
||||
* registers that allow the user to put it into single/diff mode, set the
|
||||
* gain and data rates.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
#include <byteswap.h>
|
||||
#include <stdio.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#include <wiringPi.h>
|
||||
#include <wiringPiI2C.h>
|
||||
|
||||
#include "ads1115.h"
|
||||
|
||||
// Bits in the config register (it's a 16-bit register)
|
||||
|
||||
#define CONFIG_OS_MASK (0x8000) // Operational Status Register
|
||||
#define CONFIG_OS_SINGLE (0x8000) // Write - Starts a single-conversion
|
||||
// Read 1 = Conversion complete
|
||||
|
||||
// The multiplexor
|
||||
|
||||
#define CONFIG_MUX_MASK (0x7000)
|
||||
|
||||
// Differential modes
|
||||
|
||||
#define CONFIG_MUX_DIFF_0_1 (0x0000) // Pos = AIN0, Neg = AIN1 (default)
|
||||
#define CONFIG_MUX_DIFF_0_3 (0x1000) // Pos = AIN0, Neg = AIN3
|
||||
#define CONFIG_MUX_DIFF_1_3 (0x2000) // Pos = AIN1, Neg = AIN3
|
||||
#define CONFIG_MUX_DIFF_2_3 (0x3000) // Pos = AIN2, Neg = AIN3 (2nd differential channel)
|
||||
|
||||
// Single-ended modes
|
||||
|
||||
#define CONFIG_MUX_SINGLE_0 (0x4000) // AIN0
|
||||
#define CONFIG_MUX_SINGLE_1 (0x5000) // AIN1
|
||||
#define CONFIG_MUX_SINGLE_2 (0x6000) // AIN2
|
||||
#define CONFIG_MUX_SINGLE_3 (0x7000) // AIN3
|
||||
|
||||
// Programmable Gain Amplifier
|
||||
|
||||
#define CONFIG_PGA_MASK (0x0E00)
|
||||
#define CONFIG_PGA_6_144V (0x0000) // +/-6.144V range = Gain 2/3
|
||||
#define CONFIG_PGA_4_096V (0x0200) // +/-4.096V range = Gain 1
|
||||
#define CONFIG_PGA_2_048V (0x0400) // +/-2.048V range = Gain 2 (default)
|
||||
#define CONFIG_PGA_1_024V (0x0600) // +/-1.024V range = Gain 4
|
||||
#define CONFIG_PGA_0_512V (0x0800) // +/-0.512V range = Gain 8
|
||||
#define CONFIG_PGA_0_256V (0x0A00) // +/-0.256V range = Gain 16
|
||||
|
||||
#define CONFIG_MODE (0x0100) // 0 is continuous, 1 is single-shot (default)
|
||||
|
||||
// Data Rate
|
||||
|
||||
#define CONFIG_DR_MASK (0x00E0)
|
||||
#define CONFIG_DR_8SPS (0x0000) // 8 samples per second
|
||||
#define CONFIG_DR_16SPS (0x0020) // 16 samples per second
|
||||
#define CONFIG_DR_32SPS (0x0040) // 32 samples per second
|
||||
#define CONFIG_DR_64SPS (0x0060) // 64 samples per second
|
||||
#define CONFIG_DR_128SPS (0x0080) // 128 samples per second (default)
|
||||
#define CONFIG_DR_475SPS (0x00A0) // 475 samples per second
|
||||
#define CONFIG_DR_860SPS (0x00C0) // 860 samples per second
|
||||
|
||||
// Comparator mode
|
||||
|
||||
#define CONFIG_CMODE_MASK (0x0010)
|
||||
#define CONFIG_CMODE_TRAD (0x0000) // Traditional comparator with hysteresis (default)
|
||||
#define CONFIG_CMODE_WINDOW (0x0010) // Window comparator
|
||||
|
||||
// Comparator polarity - the polarity of the output alert/rdy pin
|
||||
|
||||
#define CONFIG_CPOL_MASK (0x0008)
|
||||
#define CONFIG_CPOL_ACTVLOW (0x0000) // Active low (default)
|
||||
#define CONFIG_CPOL_ACTVHI (0x0008) // Active high
|
||||
|
||||
// Latching comparator - does the alert/rdy pin latch
|
||||
|
||||
#define CONFIG_CLAT_MASK (0x0004)
|
||||
#define CONFIG_CLAT_NONLAT (0x0000) // Non-latching comparator (default)
|
||||
#define CONFIG_CLAT_LATCH (0x0004) // Latching comparator
|
||||
|
||||
// Comparitor queue
|
||||
|
||||
#define CONFIG_CQUE_MASK (0x0003)
|
||||
#define CONFIG_CQUE_1CONV (0x0000) // Assert after one conversions
|
||||
#define CONFIG_CQUE_2CONV (0x0001) // Assert after two conversions
|
||||
#define CONFIG_CQUE_4CONV (0x0002) // Assert after four conversions
|
||||
#define CONFIG_CQUE_NONE (0x0003) // Disable the comparator (default)
|
||||
|
||||
#define CONFIG_DEFAULT (0x8583) // From the datasheet
|
||||
|
||||
|
||||
static const uint16_t dataRates [8] =
|
||||
{
|
||||
CONFIG_DR_8SPS, CONFIG_DR_16SPS, CONFIG_DR_32SPS, CONFIG_DR_64SPS, CONFIG_DR_128SPS, CONFIG_DR_475SPS, CONFIG_DR_860SPS
|
||||
} ;
|
||||
|
||||
static const uint16_t gains [6] =
|
||||
{
|
||||
CONFIG_PGA_6_144V, CONFIG_PGA_4_096V, CONFIG_PGA_2_048V, CONFIG_PGA_1_024V, CONFIG_PGA_0_512V, CONFIG_PGA_0_256V
|
||||
} ;
|
||||
|
||||
|
||||
/*
|
||||
* analogRead:
|
||||
* Pin is the channel to sample on the device.
|
||||
* Channels 0-3 are single ended inputs,
|
||||
* channels 4-7 are the various differential combinations.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int myAnalogRead (struct wiringPiNodeStruct *node, int pin)
|
||||
{
|
||||
int chan = pin - node->pinBase ;
|
||||
int16_t result ;
|
||||
uint16_t config = CONFIG_DEFAULT ;
|
||||
|
||||
chan &= 7 ;
|
||||
|
||||
// Setup the configuration register
|
||||
|
||||
// Set PGA/voltage range
|
||||
|
||||
config &= ~CONFIG_PGA_MASK ;
|
||||
config |= node->data0 ;
|
||||
|
||||
// Set sample speed
|
||||
|
||||
config &= ~CONFIG_DR_MASK ;
|
||||
config |= node->data1 ;
|
||||
|
||||
// Set single-ended channel or differential mode
|
||||
|
||||
config &= ~CONFIG_MUX_MASK ;
|
||||
|
||||
switch (chan)
|
||||
{
|
||||
case 0: config |= CONFIG_MUX_SINGLE_0 ; break ;
|
||||
case 1: config |= CONFIG_MUX_SINGLE_1 ; break ;
|
||||
case 2: config |= CONFIG_MUX_SINGLE_2 ; break ;
|
||||
case 3: config |= CONFIG_MUX_SINGLE_3 ; break ;
|
||||
|
||||
case 4: config |= CONFIG_MUX_DIFF_0_1 ; break ;
|
||||
case 5: config |= CONFIG_MUX_DIFF_2_3 ; break ;
|
||||
case 6: config |= CONFIG_MUX_DIFF_0_3 ; break ;
|
||||
case 7: config |= CONFIG_MUX_DIFF_1_3 ; break ;
|
||||
}
|
||||
|
||||
// Start a single conversion
|
||||
|
||||
config |= CONFIG_OS_SINGLE ;
|
||||
config = __bswap_16 (config) ;
|
||||
wiringPiI2CWriteReg16 (node->fd, 1, config) ;
|
||||
|
||||
// Wait for the conversion to complete
|
||||
|
||||
for (;;)
|
||||
{
|
||||
result = wiringPiI2CReadReg16 (node->fd, 1) ;
|
||||
result = __bswap_16 (result) ;
|
||||
if ((result & CONFIG_OS_MASK) != 0)
|
||||
break ;
|
||||
delayMicroseconds (100) ;
|
||||
}
|
||||
|
||||
result = wiringPiI2CReadReg16 (node->fd, 0) ;
|
||||
result = __bswap_16 (result) ;
|
||||
|
||||
// Sometimes with a 0v input on a single-ended channel the internal 0v reference
|
||||
// can be higher than the input, so you get a negative result...
|
||||
|
||||
if ( (chan < 4) && (result < 0) )
|
||||
return 0 ;
|
||||
else
|
||||
return (int)result ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* digitalWrite:
|
||||
* It may seem odd to have a digital write here, but it's the best way
|
||||
* to pass paramters into the chip in the wiringPi way of things.
|
||||
* We have 2 digital registers:
|
||||
* 0 is the gain control
|
||||
* 1 is the data rate control
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myDigitalWrite (struct wiringPiNodeStruct *node, int pin, int data)
|
||||
{
|
||||
int chan = pin - node->pinBase ;
|
||||
chan &= 3 ;
|
||||
|
||||
if (chan == 0) // Gain Control
|
||||
{
|
||||
if ( (data < 0) || (data > 6) ) // Use default if out of range
|
||||
data = 2 ;
|
||||
node->data0 = gains [data] ;
|
||||
}
|
||||
else // Data rate control
|
||||
{
|
||||
if ( (data < 0) || (data > 7) ) // Use default if out of range
|
||||
data = 4 ;
|
||||
node->data0 = dataRates [data] ;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* analogWrite:
|
||||
* We're using this to write to the 2 comparitor threshold registers.
|
||||
* We could use a digitalWrite here but as it's an analog comparison
|
||||
* then it feels better to do it this way.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static void myAnalogWrite (struct wiringPiNodeStruct *node, int pin, int data)
|
||||
{
|
||||
int chan = pin - node->pinBase ;
|
||||
int reg ;
|
||||
int16_t ndata ;
|
||||
|
||||
chan &= 3 ;
|
||||
|
||||
reg = chan + 2 ;
|
||||
|
||||
/**/ if (data < -32767)
|
||||
ndata = -32767 ;
|
||||
else if (data > 32767)
|
||||
ndata = 32767 ;
|
||||
else
|
||||
ndata = (int16_t)data ;
|
||||
|
||||
ndata = __bswap_16 (ndata) ;
|
||||
wiringPiI2CWriteReg16 (node->fd, reg, data) ;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* ads1115Setup:
|
||||
* Create a new wiringPi device node for an ads1115 on the Pi's
|
||||
* I2C interface.
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
int ads1115Setup (const int pinBase, int i2cAddr)
|
||||
{
|
||||
struct wiringPiNodeStruct *node ;
|
||||
int fd ;
|
||||
|
||||
if ((fd = wiringPiI2CSetup (i2cAddr)) < 0)
|
||||
return -1 ;
|
||||
|
||||
node = wiringPiNewNode (pinBase, 8) ;
|
||||
|
||||
node->fd = fd ;
|
||||
node->data0 = CONFIG_PGA_4_096V ; // Gain in data0
|
||||
node->data1 = CONFIG_DR_128SPS ; // Samples/sec in data1
|
||||
node->analogRead = myAnalogRead ;
|
||||
node->analogWrite = myAnalogWrite ;
|
||||
node->digitalWrite = myDigitalWrite ;
|
||||
|
||||
return 0 ;
|
||||
}
|
|
@ -0,0 +1,55 @@
|
|||
/*
|
||||
* ads1115.c:
|
||||
* Extend wiringPi with the ADS1115 I2C 16-bit ADC
|
||||
* Copyright (c) 2016 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/>.
|
||||
***********************************************************************
|
||||
*/
|
||||
|
||||
// Constants for some of the internal functions
|
||||
|
||||
// Gain
|
||||
|
||||
#define ADS1115_GAIN_6 0
|
||||
#define ADS1115_GAIN_4 1
|
||||
#define ADS1115_GAIN_2 2
|
||||
#define ADS1115_GAIN_1 3
|
||||
#define ADS1115_GAIN_HALF 4
|
||||
#define ADS1115_GAIN_QUARTER 5
|
||||
|
||||
// Data rate
|
||||
|
||||
#define ADS1115_DR_8 0
|
||||
#define ADS1115_DR_16 1
|
||||
#define ADS1115_DR_32 2
|
||||
#define ADS1115_DR_64 3
|
||||
#define ADS1115_DR_128 4
|
||||
#define ADS1115_DR_250 5
|
||||
#define ADS1115_DR_475 6
|
||||
#define ADS1115_DR_860 7
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
extern int ads1115Setup (int pinBase, int i2cAddress) ;
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
|
@ -461,6 +461,7 @@ static uint8_t gpioToShift [] =
|
|||
0,3,6,9,12,15,18,21,24,27,
|
||||
0,3,6,9,12,15,18,21,24,27,
|
||||
0,3,6,9,12,15,18,21,24,27,
|
||||
0,3,6,9,12,15,18,21,24,27,
|
||||
} ;
|
||||
|
||||
|
||||
|
@ -1970,6 +1971,16 @@ int wiringPiSetup (void)
|
|||
int fd ;
|
||||
int boardRev ;
|
||||
int model, rev, mem, maker, overVolted ;
|
||||
static int alreadyCalled = FALSE ;
|
||||
|
||||
// This is here to trap the unwary - those who's program appears to work then fails some
|
||||
// time later with a weird error message because you run out of file-handles.
|
||||
|
||||
if (alreadyCalled)
|
||||
(void)wiringPiFailure (WPI_FATAL, "wiringPiSetup*: You must only call this once per program run. This is a fatal error. Please fix your code.\n") ;
|
||||
|
||||
alreadyCalled = TRUE ;
|
||||
|
||||
|
||||
if (getenv (ENV_DEBUG) != NULL)
|
||||
wiringPiDebug = TRUE ;
|
||||
|
@ -1994,12 +2005,14 @@ int wiringPiSetup (void)
|
|||
pinToGpio = pinToGpioR1 ;
|
||||
physToGpio = physToGpioR1 ;
|
||||
}
|
||||
else // A, B, Rev 2, B+, CM, Pi2
|
||||
else // A, B, Rev 2, B+, CM, Pi2, Zero
|
||||
{
|
||||
pinToGpio = pinToGpioR2 ;
|
||||
physToGpio = physToGpioR2 ;
|
||||
}
|
||||
|
||||
// Note that a Zero is a model 1
|
||||
|
||||
if (piModel2)
|
||||
RASPBERRY_PI_PERI_BASE = 0x3F000000 ;
|
||||
else
|
||||
|
@ -2153,6 +2166,15 @@ int wiringPiSetupSys (void)
|
|||
int boardRev ;
|
||||
int pin ;
|
||||
char fName [128] ;
|
||||
static int alreadyCalled = FALSE ;
|
||||
|
||||
// This is here to trap the unwary - those who's program appears to work then fails some
|
||||
// time later with a weird error message because you run out of file-handles.
|
||||
|
||||
if (alreadyCalled)
|
||||
(void)wiringPiFailure (WPI_FATAL, "wiringPiSetupSys: You must only call this once per program run. This is a fatal error. Please fix your code.\n") ;
|
||||
|
||||
alreadyCalled = TRUE ;
|
||||
|
||||
if (getenv (ENV_DEBUG) != NULL)
|
||||
wiringPiDebug = TRUE ;
|
||||
|
|
|
@ -52,6 +52,7 @@
|
|||
#include "mcp3422.h"
|
||||
#include "max31855.h"
|
||||
#include "max5322.h"
|
||||
#include "ads1115.h"
|
||||
#include "sn3218.h"
|
||||
#include "drcSerial.h"
|
||||
|
||||
|
@ -374,6 +375,32 @@ static int doExtensionPcf8574 (char *progName, int pinBase, char *params)
|
|||
}
|
||||
|
||||
|
||||
/*
|
||||
* doExtensionAds1115:
|
||||
* Analog Input
|
||||
* ads1115:base:i2cAddr
|
||||
*********************************************************************************
|
||||
*/
|
||||
|
||||
static int doExtensionAds1115 (char *progName, int pinBase, char *params)
|
||||
{
|
||||
int i2c ;
|
||||
|
||||
if ((params = extractInt (progName, params, &i2c)) == NULL)
|
||||
return FALSE ;
|
||||
|
||||
if ((i2c < 0x03) || (i2c > 0x77))
|
||||
{
|
||||
verbError ("%s: i2c address (0x%X) out of range", progName, i2c) ;
|
||||
return FALSE ;
|
||||
}
|
||||
|
||||
ads1115Setup (pinBase, i2c) ;
|
||||
|
||||
return TRUE ;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* doExtensionPcf8591:
|
||||
* Analog IO
|
||||
|
@ -654,6 +681,7 @@ static struct extensionFunctionStruct extensionFunctions [] =
|
|||
{ "mcp4802", &doExtensionMcp4802 },
|
||||
{ "mcp3422", &doExtensionMcp3422 },
|
||||
{ "max31855", &doExtensionMax31855 },
|
||||
{ "ads1115", &doExtensionAds1115 },
|
||||
{ "max5322", &doExtensionMax5322 },
|
||||
{ "sn3218", &doExtensionSn3218 },
|
||||
{ "drcs", &doExtensionDrcS },
|
||||
|
|
Loading…
Reference in New Issue