i2c.h

环境：keil c51 i2c调度工具

#include <reg52.h>
sbit	SCL=P1^6;
sbit	SDA=P1^7;
sbit	SCL1=P1^4;//4//4
sbit	SDA1=P1^5;

extern unsigned char i2c_data;
extern unsigned char i2c_device_address;
extern unsigned char i2c_data_shift,i2c_data_shift1;
extern bit IIC_ERROR;
extern  void  delay_ms(unsigned char);