/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2008 by Rob Purchase * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #ifndef I2C_TARGET_H #define I2C_TARGET_H /* Definitions for the TCC77X I2C bus */ #define SDA_BIT (1<<10) #define SCL_BIT (1<<11) #define SCL (GPIOB & SCL_BIT) #define SCL_HI GPIOB |= SCL_BIT #define SCL_LO GPIOB &= ~SCL_BIT #define SDA (GPIOB & SDA_BIT) #define SDA_HI GPIOB |= SDA_BIT #define SDA_LO GPIOB &= ~SDA_BIT #define SDA_INPUT GPIOB_DIR &= ~SDA_BIT #define SDA_OUTPUT GPIOB_DIR |= SDA_BIT #endif /* I2C_TARGET_H */