lcm1601_8bit.c

用51单片机P0口驱动LCM1601模组显示程序.

/*
〖说明〗用单片机八位驱动LCM1601显示模块显示指定字符串
〖文件〗LCM1601_8BIT.C
〖作者〗TEGEST
〖修改〗修改建议可发到21ICBBS讨论.
〖版本〗V1.00A Build 0811
*/
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar code table[]="0123456789ABCDEF";
sbit lcdrs=P2^2;
sbit lcdrw=P2^3;
sbit lcden=P2^4;
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)
{
	lcdrs=0;
	P0=com;
	delay(1);
	lcden=1;
	delay(1);
	lcden=0;
}

void write_data(uchar date)
{
	lcdrs=1;
	P0=date;
	delay(1);
	lcden=1;
	delay(1);
	lcden=0;
}
void init()
{
	delay(20);
	lcden=0;
	lcdrw=0;
	write_com(0x38);//2line display on
	write_com(0x38);//2line display on
	write_com(0x38);//2line display on
	delay(1);
	write_com(0x06);//display on/off control
	delay(1);
	write_com(0x0c);//entry mode set
	delay(1);
	write_com(0x01);//display clear
	delay(1);

	}
void main()
{
	init();

	for(num=0;num<8;num++)
	{
		write_data(table[num]);
		delay(1);
	}
		write_com(0xc0);//指定第二行的地址
	for(num=8;num<16;num++)
	{
		write_data(table[num]);
		delay(1);
	}	
		write_com(0x06);
		delay(1);

	while(1);
}