lcd1602.h

单片机 单片机基本功能 单片机基本功能实现

#include "at89x51.h"
#define uchar unsigned char
#define uint unsigned int
#define busy 0x80
sbit RS=P1^4;
sbit RW=P1^5;
sbit E=P1^6;
sfr lcd_data=0xa0;
void cls(void);
void initlcd();
void check_busy(void);
void write_data(uchar x);
void write_instruction(uchar x);
void delay(uint i);