#include"reg51.h"#include"lcd1602.h"sbitLCM_RS=P3^5;//控制IOsbitLCM_RW=P3^6;sbitLCM_E=P3^7;#defineLCM_DataP1//DataPortvoidDelay5Ms(void);voidWriteDataLCM(unsignedcharWDLC...

#include "reg51.h"

#include "lcd1602.h"

sbit LCM_RS = P3^5; //控制IO

sbit LCM_RW = P3^6;

sbit LCM_E = P3^7;

#define LCM_Data P1 //Data Port

void Delay5Ms(void);

void WriteDataLCM(unsigned char WDLCM);

void WriteCommandLCM(unsigned char WCLCM,BuysC);

//unsigned char ReadDataLCM(void);

//unsigned char ReadStatusLCM(void);

void ReadStatusLCM(void);

//unsigned char code ASCII[15] = {'0','1','2','3','4','5','6','7','8','9','.','-','M'};

//写数据

void WriteDataLCM(unsigned char WDLCM)

{

ReadStatusLCM(); //

LCM_Data = WDLCM;

LCM_RS = 1;

LCM_RW = 0;

LCM_E = 0; //

LCM_E = 0; //

LCM_E = 1;

}

//写命令

void WriteCommandLCM(unsigned char WCLCM,BuysC) //

{

if (BuysC) ReadStatusLCM(); //检测忙信号

LCM_Data = WCLCM;

LCM_RS = 0;

LCM_RW = 0;

LCM_E = 0;

LCM_E = 0;

LCM_E = 1;

}

//读数据

//unsigned char ReadDataLCM(void)

//{

//LCM_RS = 1;

//LCM_RW = 1;

//LCM_E = 0;

//LCM_E = 0;

//LCM_E = 1;

//return(LCM_Data);

//}

//读状态

//unsigned char ReadStatusLCM(void)

//{

//LCM_Data = 0xFF;

//LCM_RS = 0;

//LCM_RW = 1;

//LCM_E = 0;

//LCM_E = 0;

//LCM_E = 1;

//while (LCM_Data & Busy); //?ì2a?|D?o?

//return(LCM_Data);

//}

void ReadStatusLCM(void)

{

Delay5Ms();

}

//初始化LCD1602

void LCMInit(void)

{

LCM_Data = 0;

WriteCommandLCM(0x38,0);//3次显示模式设置,不检测忙信号

Delay5Ms();

WriteCommandLCM(0x38,0);

Delay5Ms();

WriteCommandLCM(0x38,0);

Delay5Ms();

WriteCommandLCM(0x38,1); //3次显示模式设置,检测忙信号

WriteCommandLCM(0x08,1); //关闭显示

WriteCommandLCM(0x01,1); //显示清屏

WriteCommandLCM(0x06,1); //显示光标移动设置

WriteCommandLCM(0x0C,1); //显示开关

}

//显示一个字符

void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData)

{

Y &= 0x1;

X &= 0xF;

if (Y) X |= 0x40; // 限制一行字符不能超过16个，否则换行

X |= 0x80; //算上基地址

WriteCommandLCM(X, 1); //发送命令字

WriteDataLCM(DData); //·发送数据

}

//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; //限制位置不能超限

while (DData[ListLength]>0x19)

{

if (X <= 0xF) //

{

DisplayOneChar(X, Y, DData[ListLength]); //显示一个字符

ListLength++;

X++;

}

}

}

//延时

void Delay5Ms(void)

{

unsigned int TempCyc = 1552;

while(TempCyc--);

}

画一个流程图。

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