|
- /*
- * gertboard.h:
- * Access routines for the SPI devices on the Gertboard
- * Copyright (c) 2012 Gordon Henderson
- *
- * The Gertboard has an MCP4802 dual-channel D to A convertor
- * connected to the SPI bus, selected via chip-select B.
- *
- ***********************************************************************
- * 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 void gertboardAnalogWrite (int chan, int value) ;
- extern int gertboardAnalogRead (int chan) ;
- extern int gertboardSPISetup (void) ;
-
- #ifdef __cplusplus
- }
- #endif
|