46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/*
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* gertboard.h:
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* Access routines for the SPI devices on the Gertboard
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* Copyright (c) 2012 Gordon Henderson
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*
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* The Gertboard has an MCP4802 dual-channel D to A convertor
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* connected to the SPI bus, selected via chip-select B.
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*
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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
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* published by the Free Software Foundation, either version 3 of the
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* License, or (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
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* License along with wiringPi.
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* If not, see <http://www.gnu.org/licenses/>.
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***********************************************************************
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Old routines
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extern void gertboardAnalogWrite (const int chan, const int value) ;
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extern int gertboardAnalogRead (const int chan) ;
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extern int gertboardSPISetup (void) ;
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// New
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extern int gertboardAnalogSetup (const int pinBase) ;
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#ifdef __cplusplus
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}
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#endif
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