lcd.c

开发能够动态显示的液晶屏程序,可下载学习交流

#include <reg51.h>
#define uchar unsigned char
#define uint unsigned int
uchar code table[]="Hello good veryone!";
uchar code table1[]="how do you do";

sbit lcden = P2^7;
sbit wr = P2^6;
sbit rs = P2^5;

uchar num;


void delay(uint z)
{
	uint x,y;
	for(x=z;x>0;x--)
		for(y=110;y>0;y--);
}

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

void write_data(uchar date)
{
	rs=1;
	P0=date;
	delay(5);
	lcden=0;
	delay(5);
	lcden=1;
	delay(5);
	lcden=0;
	delay(5);
}

void init()
{
	wr=0;
	write_com(0x38);
	write_com(0x0e);
	write_com(0x06);
	write_com(0x01);
	write_com(0x80+0x1);
}

void main()
{
	init();
	for(num=0;num<20;num++)
	{
		write_data(table[num]);
		delay(50);
	}
//	write_com(1);
	write_com(0x80+0x41);
	for(num=0;num<13;num++)
	{
		write_data(table1[num]);
		delay(50);
	}
	/*
	for(num=0;num<8;num++)
	{
		write_com(0x18);
		delay(20);
	}*/
	while(1);
}