| /*************************************************************************** |
| * __________ __ ___. |
| * 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 */ |