i2c.h

这是一种温度变送器的源代码

#define read 1;
#define write 0;

extern bit SMB_BUSY;   
extern bit SMB_RW;
extern bit RW_flag;
extern bit Ack1;
extern bit Ack2;

void SMbus_init(void);
void SMbus_24c02_read(unsigned char addr);
void SMbus_24c02_write(unsigned char addr,unsigned char dat);