求视频:lcd1602使用教程

直接去看LCD1602的英文资料是最好的。如果懒得看那就去看看《手把手教你学单片机》，在电驴那里有得下载。大概是第16讲左右。

给你程序参考

/****************************************
//基于单片机的LCD1602的定时程序//
//作者:jammylee
//日期:2008-2-25
//版本:V1.0
//晶振:12MHZ
****************************************/

#include"reg52.h"
#include
#include

typedef unsigned char uchar;
typedef unsigned int uint;

#define LCD_Data P0
#define Busy 0x80 //用于检测LCD状态字中的Busy标识

sbit ADC0832_CLK = P1^5;
sbit ADC0832_DODI = P1^6;
sbit ADC0832_CS = P1^7;

sbit LCD_RS=P2^7;//定义引脚
sbit LCD_RW=P2^6;
sbit LCD_E=P2^5;

float volts,amps;

//5ms延时
void Delay5Ms(void)
{
unsigned int TempCyc = 5552;
while(TempCyc--);
}

//400ms延时
void Delay400Ms(void)
{
unsigned char TempCycA = 5;
unsigned int TempCycB;
while(TempCycA--)
{
TempCycB=7269;
while(TempCycB--);
};
}

//读状态
unsigned char ReadStatusLCD(void)
{
LCD_Data = 0xFF;
LCD_RS = 0;
LCD_RW = 1;
LCD_E = 0;
LCD_E = 0;
LCD_E = 1;
while (LCD_Data & Busy); //检测忙信号
return(LCD_Data);
}

//写数据
void WriteDataLCD(unsigned char WDLCD)
{
ReadStatusLCD(); //检测忙
LCD_Data = WDLCD;
LCD_RS = 1;
LCD_RW = 0;
LCD_E = 0; //若晶振速度太高可以在这后加小的延时
LCD_E = 0; //延时
LCD_E = 1;
}

//写指令
void WriteCommandLCD(unsigned char WCLCD,BuysC) //BuysC为0时忽略忙检测
{
if (BuysC) ReadStatusLCD(); //根据需要检测忙
LCD_Data = WCLCD;
LCD_RS = 0;
LCD_RW = 0;
LCD_E = 0;
LCD_E = 0;
LCD_E = 1;
}

//读数据
unsigned char ReadDataLCD(void)
{
LCD_RS = 1;
LCD_RW = 1;
LCD_E = 0;
LCD_E = 0;
LCD_E = 1;
return(LCD_Data);
}

void LCDInit(void) //LCM初始化
{
LCD_Data = 0;
WriteCommandLCD(0x38,0); //三次显示模式设置，不检测忙信号
Delay5Ms();
WriteCommandLCD(0x38,0);
Delay5Ms();
WriteCommandLCD(0x38,0);
Delay5Ms();

WriteCommandLCD(0x38,1); //显示模式设置,开始要求每次检测忙信号
WriteCommandLCD(0x08,1); //关闭显示
WriteCommandLCD(0x01,1); //显示清屏
WriteCommandLCD(0x06,1); // 显示光标移动设置
WriteCommandLCD(0x0C,1); // 显示开及光标设置
}

//按指定位置显示一个字符
void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData)
{
Y &= 0x1;
X &= 0xF; //限制X不能大于15，Y不能大于1
if (Y) X |= 0x40; //当要显示第二行时地址码+0x40;
X |= 0x80; // 算出指令码
WriteCommandLCD(X, 0); //这里不检测忙信号，发送地址码
WriteDataLCD(DData);
}

//按指定位置显示一串字符
void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData)
{
unsigned char ListLength;

ListLength = 0;
Y &= 0x1;
X &= 0xF; //限制X不能大于15，Y不能大于1
while (DData[ListLength]>=0x20) //若到达字串尾则退出
{
if (X <= 0xF) //X坐标应小于0xF
{
DisplayOneChar(X, Y, DData[ListLength]); //显示单个字符
ListLength++;
X++;
}
}
}

我有郭天祥的1602教学视频！！！有160M大！