00001 /*--------------------------------------------------------------------------- 00002 * Copyright (C) 2003 Dallas Semiconductor Corporation, All Rights Reserved. 00003 * 00004 * Permission is hereby granted, free of charge, to any person obtaining a 00005 * copy of this software and associated documentation files (the "Software"), 00006 * to deal in the Software without restriction, including without limitation 00007 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 00008 * and/or sell copies of the Software, and to permit persons to whom the 00009 * Software is furnished to do so, subject to the following conditions: 00010 * 00011 * The above copyright notice and this permission notice shall be included 00012 * in all copies or substantial portions of the Software. 00013 * 00014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 00015 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00016 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 00017 * IN NO EVENT SHALL DALLAS SEMICONDUCTOR BE LIABLE FOR ANY CLAIM, DAMAGES 00018 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 00019 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 00020 * OTHER DEALINGS IN THE SOFTWARE. 00021 * 00022 * Except as contained in this notice, the name of Dallas Semiconductor 00023 * shall not be used except as stated in the Dallas Semiconductor 00024 * Branding Policy. 00025 * --------------------------------------------------------------------------- 00026 * 00027 * This file contains function definitions for I2C access functions. 00028 * This file is intended for use with the Keil MicroVision (uVision) C compiler. 00029 * 00030 * --------------------------------------------------------------------------- 00031 */ 00032 #ifndef __tini_i2c_ 00033 #define __tini_i2c_ 00034 00056 #define TINI_I2C_VERSION 1 00057 00058 00062 //--------------------------------------------------------------------------- 00063 int i2c_version(); 00064 00068 //--------------------------------------------------------------------------- 00069 00070 void i2c_delay(void); 00074 //--------------------------------------------------------------------------- 00075 00076 void i2c_start(void); 00082 //--------------------------------------------------------------------------- 00083 00084 void i2c_bit(unsigned char singlebit); 00090 //--------------------------------------------------------------------------- 00091 unsigned char i2c_readbit(void); 00092 00096 //--------------------------------------------------------------------------- 00097 void i2c_stop(void); 00098 00107 //--------------------------------------------------------------------------- 00108 unsigned char i2c_readbyte(unsigned char doACK); 00109 00117 //--------------------------------------------------------------------------- 00118 unsigned char i2c_writebyte(unsigned char singlebyte); 00119 00128 //--------------------------------------------------------------------------- 00129 unsigned char i2c_select(unsigned char address); 00130 00143 //--------------------------------------------------------------------------- 00144 unsigned char i2c_writeblock(unsigned char address,unsigned char *barr,int length); 00145 00158 //--------------------------------------------------------------------------- 00159 unsigned char i2c_readblock(unsigned char address,unsigned char *barr,int length); 00160 00175 //--------------------------------------------------------------------------- 00176 unsigned char i2c_writereadblock(unsigned char address,unsigned char *barr1,int length1, 00177 unsigned char *barr2,int length2); 00178 00179 /* Define SCL and SDA to talk on the designated TINIs400 pins */ 00180 //#define I2C_SDA P1_0 00181 //#define I2C_SCL P1_1 00182 00185 #define I2C_SDA P3_4 00186 00189 #define I2C_SCL P3_5 00190 00194 #define I2C_ENABLE_SCL_WAIT_FOR_SLOW_SLAVES 0 00195 00199 #define I2C_MAXIMUM_SCL_WAITCOUNT 10000 00200 00203 #define I2C_DELAY_LOOP_COUNT 0 00204 00205 #endif 00206 00207
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