12864ʦ

12864液晶显示

#include<reg52.h> 
#define uchar unsigned char
#define uint unsigned int 
#include"12864zifu.h"
#include"12864tupian.h"
sbit rs=P2^0;
sbit rw=P2^1;                 //控制端口定义
sbit en=P2^2;
sbit cs1=P2^3;
sbit cs2=P2^4; 
sbit rst=P2^5; 
void delay(uint z)
{
	uint x,y;
	for(z=x;x>0;x--)
		for(y=10;y>0;y--);
}
void LCD_choose(uchar cs) //选屏
{
	switch(cs)
	{
		case 0:cs1=0;cs2=1;break;
		case 1:cs1=1;cs2=0;break;
		case 2:cs1=0;cs2=0;break;
		default:break;
	}
}
void LCD_check_busy()  //忙检查
{
	uchar state;
	rs=0;
	rw=1;
	do
	{
		P0=0x00;
		en=1;
		state=P0&0x80;
		en=0;
	}
	while(state==0x80);
}
void LCD_write_cmd(uchar cmd) //写命令
{
	LCD_check_busy();
	rs=0;
	rw=0;
	en=1;
	delay(5);
	P0=cmd;
	en=0;		  //形成一个脉冲
}
void LCD_write_data(uchar dat)	//写数据
{
	LCD_check_busy();
	rs=1;
	rw=0;
	delay(5);
	en=1;
	P0=dat;
	en=0;
}
void LCD_clear()  //清理全屏
{
	uchar i,k;
	LCD_choose(2);
	LCD_write_cmd(0xb8);
	LCD_write_cmd(0x40);
	for(i=0;i<8;i++) //八页，逐页清理
	{
		LCD_write_cmd(0xb8+i);
		for(k=0;k<64;k++)	 //每半屏64列，逐列清理
		{
		 	LCD_write_cmd(0x40+k);
			LCD_write_data(0x00);
		}
	}
}
void LCD_init()
{
	LCD_choose(2);
	LCD_write_cmd(0x3e); //关显示
	LCD_write_cmd(0xb8);  //第0页
	LCD_write_cmd(0xc0); //第0行
	LCD_write_cmd(0x40);  //第0列
	LCD_write_cmd(0x3f);//开显示
}
uchar LCD_read_data(uchar page,uchar row)
{				   //从第page页，第row列读数据
	uchar dat;
	LCD_check_busy();
	LCD_write_cmd(0xb8+page);
	LCD_write_cmd(0x40+row);
	P0=0xff;
	rs=0;
	rw=1;
	en=1;
	en=0;
	en=1;
	dat=P0;
	en=0;
	return dat;
}
void LCD_display_dot(uchar cs,uchar page,uchar row)
{					  //写一个点
	uchar dat;
	LCD_choose(cs);
	dat=LCD_read_data(page/8,row);
	LCD_write_cmd(0xb8+page/8);
	LCD_write_cmd(0x40+row);
	LCD_write_data(1);
}
/*8X16点阵显示*/
void LCD_display8(uchar cs,uchar page,uchar row,uchar *s)
{							 
	uchar i;
	LCD_choose(cs);
	page<<=1; //八小页分成四大页
	row=row*8;//六十四列分八大列
	LCD_write_cmd(0xb8+page);//从第几行显示
	LCD_write_cmd(0x40+row); //从第几列显示，每扫描完一列，列会自动加一
	for	(i=0;i<8;i++)
		LCD_write_data(s[i]);//写数据
	LCD_write_cmd(0xb9+page);
	LCD_write_cmd(0x40+row);
	for(i=8;i<16;i++)
		LCD_write_data(s[i]);
}
/*16X16点阵显示*/
void LCD_display16(uchar cs,uchar page,uchar row,uchar *s)
{
	uchar i;
	LCD_choose(cs);
	page<<=1;
	row=row*8;
	LCD_write_cmd(0xb8+page);
	LCD_write_cmd(0x40+row);
	for(i=0;i<16;i++)
		LCD_write_data(s[i]);
	LCD_write_cmd(0xb9+page);
	LCD_write_cmd(0x40+row);
	for(i=16;i<32;i++)
		LCD_write_data(s[i]);
}
void main()
{
	LCD_init();
	LCD_clear();
		
	LCD_display16(0,0,4,hui);
	LCD_display16(0,0,6,zhou);
	LCD_display16(1,0,0,xue);
	LCD_display16(1,0,2,yuan);

	LCD_display16(0,1,3,dian1);
	LCD_display16(0,1,5,zi);
	LCD_display8(0,1,7,ke1);
	LCD_display8(1,1,0,ke2);
	LCD_display16(1,1,1,xue);
	LCD_display16(1,1,3,xi);
	
	LCD_display8(0,2,2,shu2);
	LCD_display8(0,2,3,shu0);
	LCD_display8(0,2,4,shu1);
	LCD_display8(0,2,5,shu2);
	LCD_display16(0,2,6,nian);
	LCD_display8(1,2,0,shu8);
	LCD_display16(1,2,1,yue);
	LCD_display8(1,2,3,shu9);
	LCD_display16(1,2,4,ri);

 	LCD_display16(0,3,4,he);
	LCD_display16(0,3,6,ping);
	LCD_display16(1,3,0,qing);
	LCD_display16(1,3,2,feng);


	LCD_display_dot(0,48,4);
	LCD_display_dot(0,40,4);
	while(1);
}