sd2000.h

lcd1602的四位数据线用法

#ifndef __SD2000_H__
#define __SD2000_H__

#include <reg51.h>

typedef unsigned char uchar;
typedef unsigned int uint;
sbit	SDA=P2^0;
sbit	SCL=P2^2;
//uchar   data1,data2,data3,data4;

#define true  1
#define false 0		

/********SD2000函数名********/
void I2CWait(void);
bit  I2CStart(void);
void I2CStop(void);
void I2CAck(void);
void I2CNoAck(void);
bit  I2CWaitAck(void);
void I2CSendByte(uchar demand,bit order);
uchar I2CReceiveByte(void);
void I2CReadDate(void);
void I2CWriteStatus(void);
void I2CWriteTime(void);
//void Delay(uint nn);






#endif