lcd12864.c

52单片机开发板的实例程序

 #include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit rs=P1^0;
sbit rw=P1^1;
sbit en=P1^2;
uchar code one[]="智天电子";
uchar code two[]="52与AVR 实验板";
uchar code three[]="单片机 C语言学习";
uchar code four[]="从零开始快速入门 ";
void delay(uint z)
{
	uint x,y;
	for(x=z;x>0;x--)
	for(y=110;y>0;y--);
}
void write12864_command(uchar command)//写指令子函数
{
   rs=0;
   rw=0;
   P2=command;
   delay(2);
   en=1;
   delay(3);
   en=0;
}
void write12864_data(uchar date)//写数据子函数
{
   rs=1;
   rw=0;
   P2=date;
   delay(2);
   en=1;
   delay(3);
   en=0;
}
void init()
{	
	en=0;
	rw=0;
	write12864_command(0x38);
	write12864_command(0x01);
	write12864_command(0x0c);
	write12864_command(0x06);
	write12864_command(0x80);
}
void main()
{		uchar i,ge,shi,bai,temp=0;
		init();
    write12864_command(0x80);
	for(i=0;one[i]!='\0';i++)
			{
				write12864_data(one[i]);
				delay(1);
			}
write12864_command(0x90);
	for(i=0;two[i]!='\0';i++)
			{
				write12864_data(two[i]);
				delay(1);
			}
write12864_command(0x88);
	for(i=0;three[i]!='\0';i++)
			{
				write12864_data(three[i]);
				delay(1);
			}
write12864_command(0x98);
	for(i=0;four[i]!='\0';i++)
			{
				write12864_data(four[i]);
				delay(1);
			}
	    while(1)   
		{
    	  bai=temp/100;
		  shi=temp%100/10;
		  ge=temp%10;
		  write12864_command(0x80+5);
		  write12864_data(0x30+bai);
		  write12864_data(0x30+shi);
		  write12864_data(0x30+ge); 
		  temp++;
		  if(temp>200)
		  temp=0;
		  delay(800);
		}
	
}