1602程序修改

ID:59106 · 发表于 2014-2-19 10:10

请问1602的代码如何写啊，这是我写的但是运行不了，怎么回事呢#include<reg52.h>sbit dula=P2^6;
sbit wela=P2^7;
sbit lcden=P3^4;
sbit lcdrs=P3^5;
unsigned char code table[]="I LOVE MCU!";
unsigned char code table1[]="WWW.TXMCU.COM";
unsigned char num;
void delay(unsigned int t);
void write_com(unsigned char com)
{
lcdrs=0;
P0=com;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void write_data(unsigned char date)
{
lcdrs=1;
P0=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void init()
{
  dula=0;
  wela=0;
  lcden=0;
  write_com(0x38);
  write_com(0x0c);
  write_com(0x06);
  write_com(0x01);
}
void main()
{

   init();
   write_com(0x80);
   for(num=0;num<11;num++)
      {
      write_data(table[num]);
      delay(5);
      }
   write_com(0x80+0x40);
   for(num=0;num<13;num++)
   {
   write_data(table1[num]);
   delay(5);
   }
while(1);
}
void delay(unsigned int t)
{
  while(--t);
}

ID:1 · 发表于 2014-2-24 22:40

#include "at89x52.h"
#include "51hei.h"

#define LCM_RW  P2_7 //定义引脚
#define LCM_RS  P3_5
#define LCM_E P3_4
#define LCM_Data  P0
#define Busy 0x80 //用于检测LCM状态字中的Busy标识

void WriteDataLCM(unsigned char WDLCM);
void WriteCommandLCM(unsigned char WCLCM,BuysC);
unsigned char ReadDataLCM(void);
unsigned char ReadStatusLCM(void);
void LCMInit(void);
void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData);
void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData);
void Delay5Ms(void);
void Delay400Ms(void);

unsigned char code uctech[] = {" *51hei* "};
unsigned char code net[] = {" www.51Hei.com "};

void main(void)
{
  guandz();//关闭点阵
  guanled();//关闭led数码管

  Delay400Ms(); //启动等待，等LCM讲入工作状态
  LCMInit(); //LCM初始化
  Delay5Ms(); //延时片刻(可不要)

  DisplayListChar(0, 5, uctech);
  DisplayListChar(0, 0, net);
  ReadDataLCM();//测试用句无意义

while(1);
}

//写数据
void WriteDataLCM(unsigned char WDLCM)
{
ReadStatusLCM(); //检测忙
LCM_Data = WDLCM;
LCM_RS = 1;
LCM_RW = 0;
LCM_E = 0; //若晶振速度太高可以在这后加小的延时
LCM_E = 0; //延时
LCM_E = 1;
}

//写指令
void WriteCommandLCM(unsigned char WCLCM,BuysC) //BuysC为0时忽略忙检测
{
if (BuysC) ReadStatusLCM(); //根据需要检测忙
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); //检测忙信号
return(LCM_Data);
}

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

WriteCommandLCM(0x38,1); //显示模式设置,开始要求每次检测忙信号
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
WriteCommandLCM(X, 0); //这里不检测忙信号，发送地址码
WriteDataLCM(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]>0x19) //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++;
}
  }
}

//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--);
};

}

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