main.c

LCD12864液晶C语言程序用于带字库的液晶

#include <reg52.H>
#include <absacc.h>

#define uint unsigned  int
#define uchar unsigned char

/***********LCD读写控制字************************/  
#define LCD_WR_CMD    XBYTE[0xfcea]	   //写命令
#define LCD_RD_CMD    XBYTE[0xfeea]	   //读状态字
#define LCD_WR_DATA   XBYTE[0xfdea]	   //写显示数据
#define LCD_RD_DATA   XBYTE[0xffea]	   //读显示数据

unsigned char code name00[]={"湖北师范学院电工"};
unsigned char code name01[]={"电子示范中心"};
unsigned char code name02[]={"祝洪峰制作"};
unsigned char code name03[]={"2007年07月17日"};

/*************延时n ms子函数**************************/
void delay(unsigned int tt)//延时1ms
{
   unsigned char j;
   while(tt--)
    {
   		for(j=0;j<125;j++)
    	{;}
 	}
} 
/****************判断是否忙子函数*******************/
void chk_busy(void)		
{
	uchar temp;
	do
	{
		temp=LCD_RD_CMD;
	}
	while((temp|0x7f)==0xff);	
}
/****************写指令子函数*********/
void  lcd_wr_cmd(uchar cmdcode)
{
	chk_busy();
	LCD_WR_CMD = cmdcode;
}	

/*******************写数据子函数********************/
void lcd_wr_data(uchar ldata)
{
	chk_busy();
	LCD_WR_DATA=ldata;	
}

void init_lcd(void)
{
	lcd_wr_cmd(0x01);			//清屏
	lcd_wr_cmd(0x08);			//选中全屏
	lcd_wr_cmd(0x03);			//设置位地址归位
	lcd_wr_cmd(0x30);			//设置液晶功能
	lcd_wr_cmd(0x0c);			 //点亮全屏
	lcd_wr_cmd(0x01);			 //清贫
}
void outChinese(unsigned char place,unsigned char unit,unsigned char charcode[] )
{
	unsigned char i;
 	lcd_wr_cmd(place);
 	for(i=0;i<unit*2;i++)//一个汉字为两个字符
 	{
 		lcd_wr_data(charcode[i]);
	}
}

void main(void)
{
	init_lcd();
	delay(100);
	//lcd_wr_data("主");
	//lcd_wr_data(0xff);
	while(1)
	{
	
		outChinese(0x80,8,name00);//第一行：80-87H

		outChinese(0x91,6,name01);//第二行：90-97H
		
 		outChinese(0x89,5,name02);//第三行：88-8FH
		
 		outChinese(0x98,7,name03);//第四行：98-9FH
		delay(100);
	
	}
}