使用STM32红牛开发的GPIO模拟I2C控制八个AT24C02的读写

#ifndef __STM32F10x_I2C_H

#define __STM32F10x_I2C_H

/* Includes ------------------------------------------------------------------*/

#include "stm32f10x_map.h"

/* Exported types ------------------------------------------------------------*/ /* I2C Init structure definition */

void I2C_GenerateSTART(void);

void I2C_GenerateSTOP(void);

void I2C_SendData(u8 Data);

u8 I2C_ReceiveData(void);

void Ack(void);

bool WaitAck(void);

void NAck(void);

void wait(u16 Data);

void GPIOC_Config_OUT(void);

void GPIOC_Config_IN(void);

#endif /*__STM32F10x_I2C_H */

//C文件

/******************** (C) COPYRIGHT 2011 STMicroelectronics ********************

* File Name : stm32f10x_i2c.c

* Author : Tanglin

* Version : V2.0.1

* Date : 11/9/2011

* Description : This file provides all the I2C firmware functions.

********************************************************************************

/* Includes ------------------------------------------------------------------*/

#include "stm32f10x_i2c.h"

#include "stm32f10x_rcc.h"

#include "i2c_ee.h"

void I2C_GenerateSTART(void)

{

SDAH;//SDA=1;

wait(10);

SCLH;//SCL=1;

wait(10);

SDAL;//SDA=0;