1602.c

1602液晶显示

#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit rs=P2^4;
sbit lcden=P2^6;
sbit wr=P2^5;
uchar code table[]=" 2008-11-6  wen";
uchar code table1[]="   00:00:00";
void delay(uint z)
{
	uchar x,y;
	for(x=z;x>0;x--)
	  for(y=100;y>0;y--);
}

//***********液晶写指令程序*********************************//

void write_com(char com)  
{
	rs=0;
	lcden=0;
	P0=com;
	delay(5);
	lcden=1;
	lcden=0;		
}

void write_date(char date)
{
	rs=1;
	lcden=0;
	P0=date;
	delay(5);
	lcden=1;
	lcden=0;		
}

void init()
{
	uchar num;
	lcden=0;
	wr=0;
	write_com(0x38);
	write_com(0x0c);
	write_com(0x06);
	write_com(0x01);
	write_com(0x80);
	for(num=0;num<15;num++)
	{
		write_date(table[num]);
		delay(20);
	}
	write_com(0x80+0x40);
	for(num=0;num>11;num++)
	{
		write_date(table1[num]);
		delay(20);
	}
}

void main()
{
	init();
	while(1);
}