1602存档.txt

模块化的液晶显示范例

#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit lcden=P3^4;
sbit lcdrs=P3^5;
uchar code table[]="I LOVE YOU!";
uchar code table1[]="WWW.21ic.COM";
//sbit dula=P2^6;
//sbit wela=P2^7;
uchar num,key;
void delay(uint z)      //延时子函数
{
	uint x,y;
	for(x=z;x>0;x--)
		for(y=124;y>0;y--);	
}
void write_com(uchar com)   //写指令
{
	lcdrs=0;
	P0=com;
	delay(5);
	lcden=1;
	delay(5);
	lcden=0;
}

void write_data(uchar date)   //写数据
{
	lcdrs=1;
	P0=date;
	delay(5);
	lcden=1;
	delay(5);
	lcden=0;
}

void init()   //初始化液晶
{
	//dula=0;
	//wela=0;
	lcden=0;
	write_com(0x38);  //xianshi shezi
	write_com(0x0f);  //0x0f光标闪烁，0x0e不闪烁 0x0c不显示光标
	write_com(0x06);  //光标自动加一，整屏不移动
	write_com(0x01);  //清屏
	write_com(0x80+0x10);  //数据指针初始化
	
}

void main()
{
	init();
	for(num=0;num<11;num++)       //写第一行数据
	{	
		write_data(table[num]);
		delay(20);
		
	}
//	write_com(1);  //清屏
	write_com(0x80+0x50);        //确定位置写第二行数据
	for(num=0;num<12;num++)
	{	
		write_data(table1[num]);
		delay(20);
		
	}
   /********整屏左移*********/

	for(num=0;num<16;num++)
	{
	write_com(0x1c);
	delay(200);	

	}
	
	


	while(1);		
}