标题:
lcd1602单片机驱动程序
[打印本页]
作者:
750548292
时间:
2017-11-24 11:14
标题:
lcd1602单片机驱动程序
lcd1602驱动程序
单片机源程序如下:
#include<lcd1602.h>
#include<reg52.h>
#include<delay.h>
#include<string.h>
#include<intrins.h>
#define uchar unsigned char
sbit RS = P2^0;
sbit RW = P2^1;
sbit E = P2^2;
void check_busy(void)
{
uchar dt;
do
{
dt=0xff;
E=0;
RS=0;
RW=1;
E=1;
dt=P0;
}while(dt&0x80);
E=0;
}
void LCD_Write_Cmd(unsigned char cmd) //写命令
{
check_busy();
E=0;
RS=0;
RW=0;
P0=cmd;
E=1;
_nop_();
E=0;
delay(1);
}
void LCD_Write_Dat(unsigned char dat)//写数据
{
check_busy();
E=0;
RS=1;
RW=0;
P0=dat;
E=1;
_nop_();
E=0;
delay(1);
}
//LCD初始化
void LCD_Init(void)
{
LCD_Write_Cmd(LCD_Clear); // 清屏
delayms(2);
LCD_Write_Cmd(LCD_C_BLK);//让光标闪烁
delayms(2);
LCD_Write_Cmd(LCD_S_RMove);
delayms(2);
LCD_Write_Cmd(LCD_Double57);//双行显示
delayms(2);
}
void LCD_String(unsigned char addr,unsigned char *s)
{
LCD_Write_Cmd(addr);
while(*s>0)
{
LCD_Write_Dat(*s++);
delay(100);
}
}
void LCD_Write_VarDat(char addr,float num)
{
int temp;
char Q,B,S,G;
……………………
…………限于本文篇幅 余下代码请从51黑下载附件…………
复制代码
所有资料51hei提供下载:
lcd1602.rar
(1.39 KB, 下载次数: 9)
2017-11-24 11:13 上传
点击文件名下载附件
lcd1602驱动程序
下载积分: 黑币 -5
欢迎光临 (http://www.51hei.com/bbs/)
Powered by Discuz! X3.1