原创 液晶TC4004 检测不到忙标志

#include<intrins.h>
#include <reg52.h>

#define Uchar unsigned char
#define Uint unsigned int
#define Busy 0x80       // 忙判别位

void LcdWriteData1( char dataW);
void LcdWriteCommand1( Uchar CMD1,Uchar AttribC1);
void LcdReset1( void );
void DispOneChar1(Uchar x,Uchar y,Uchar Wdata);
void ePutstr1(Uchar x,Uchar y, Uchar code *ptr);
void Delay(unsigned int t);

void Checkbusy1();

sbit LcdE1=P3^4;
sbit LcdRS="P3"^5;
sbit LcdWR="P3"^6;
sbit LcdE2=P2^5;

 //     检测忙
 /*void Checkbusy1()
 {
       P3=P3|0x40;                      // RS="0",WR=1
       while(1)
       { Uchar tag1;
        //P0=0xff;
        P3=P3|0x50;                       //RS=0,WR=1 E1=1读状态
        tag1=P0;
        P3=P3&0xef;                       //锁定数据   E1=0
        if((tag1&Busy)==0x00)    // 检测忙信号?
        break;
       }
  } */
     void Checkbusy1()
 {
       while(1)
       { Uchar tag1;

        //P0=0xff;
        LcdRS="0";                     //RS=0,WR=1 E1=1读状态
        LcdWR="1";
        LcdE1=1;
        tag1=P0;
        LcdE1=0;                     //锁定数据
        if((tag1&Busy)==0x00)  // 检测忙信号?
        break;
       }
  }
   void Checkbusy2()
 {
       while(1)
       { Uchar tag2;

        //P0=0xff;
        LcdRS="0";                     //RS=0,WR=1 E1=1读状态
        LcdWR="1";
        LcdE2=1;
        tag2=P0;
        LcdE2=0;                     //锁定数据
        if((tag2&Busy)==0x00)  // 检测忙信号?
        break;
       }
  }
// 写控制字符子程序: E="1" RS="0" RW="0"

/*void LcdWriteCommand1( Uchar CMD1,Uchar AttribC1 )
{

 if (AttribC1)
     {
           Checkbusy1();
           P3=P3&0xbf;                       //RS=0,WR=0 E1=0写命令
           P0= CMD1;
           P3=P3|0x10;                       //锁定数据
           P3=P3&0xef;
     }
        else
      {

       P3=P3&0x8f;                       //RS=0,WR=0 ,E1=0写命令
       P0= CMD1;
       P3=P3|0x10;                       //锁定数据  E1=1后 E1=0
       P3=P3&0xef;
       }
}     */
// 写控制字符子程序: E="1" RS="0" RW="0"

void LcdWriteCommand1( Uchar CMD1,Uchar AttribC1 )
{

 if (AttribC1)
     {
           Checkbusy1();
           //P0=0xff;
           LcdRS="0";
           LcdWR="0";                 //写命令
           P0= CMD1;
           LcdE1=1;
           LcdE1=0;                   //锁定数据

     }
      else
      {
         LcdRS="0";
         LcdWR="0";
         P0= CMD1;
         LcdE1=1;
         LcdE1=0;                   //锁定数据
       }
}
// 写控制字符子程序: E="1" RS="0" RW="0"

void LcdWriteCommand2( Uchar CMD2,Uchar AttribC2 )
{

 if (AttribC2)
     {
           Checkbusy2();
           //P0=0xff;
           LcdRS="0";
           LcdWR="0";                 //写命令
           P0= CMD2;
           LcdE2=1;
           LcdE2=0;                   //锁定数据

     }
      else
      {
         LcdRS="0";
         LcdWR="0";
         P0= CMD2;
         LcdE2=1;
         LcdE2=0;                   //锁定数据
       }
}

void Delay(unsigned int t)
{
 int k,l,m;
 for(k=0;k<t;k++)
     {
     for(l=0;l<200;l++)
         {
         m="0";
         }
     }
}

// 初始化程序, 必须按照产品资料介绍的初始化过程进行
void LcdReset1( void )
{

    LcdWriteCommand1(0x38,0);   // 显示模式设置(不检测忙信号)
 Delay(50);
 LcdWriteCommand1(0x38,0);   // 共三次
 Delay(50);
 LcdWriteCommand1(0x38,0);
 Delay(50);

 LcdWriteCommand1(0x38,1); //6功能设置, 显示模式设置(以后均检测忙信号)
                                              // 8位数据,两行显示, 5*10点阵
        // Delay(100);
        LcdWriteCommand1(0x08,1);  //4 显示关闭
        // Delay(100);
    LcdWriteCommand1(0x01,1);  //1清显示, 显示清屏
         //Delay(100);
        LcdWriteCommand1(0x02,1);  //3输入方式, 光标由左向右移,AC加一,禁止流动
          //Delay(100);
        LcdWriteCommand1(0x06,1);  //5移位, 光标右移,AC加一,显示不动
        // Delay(100);
 LcdWriteCommand1(0x0f,1);  //4显示开关,整体显示打开,光标显示开,光标闪烁
}

// 初始化程序, 必须按照产品资料介绍的初始化过程进行
void LcdReset2( void )
{

    LcdWriteCommand2(0x38,0);   // 显示模式设置(不检测忙信号)
  Delay(50);
 LcdWriteCommand2(0x38,0);   // 共三次
  Delay(50);
 LcdWriteCommand2(0x38,0);
  Delay(50);

 LcdWriteCommand2(0x38,1); //6功能设置, 显示模式设置(以后均检测忙信号)
                                              // 8位数据,两行显示, 5*10点阵
        LcdWriteCommand2(0x08,1);  //4 显示关闭
    LcdWriteCommand2(0x01,1);  //1清显示, 显示清屏
        LcdWriteCommand2(0x02,1);  //3输入方式, 光标由左向右移,AC加一,禁止流动
        LcdWriteCommand2(0x06,1);  //5移位, 光标右移,AC加一,显示不动
 LcdWriteCommand2(0x0f,1);  //4显示开关,整体显示打开,光标显示开,光标闪烁
}

 // 当前位置写字符子程序: E =1 RS="1" RW="0"
/*void LcdWriteData1( char dataW1 )
{

 Checkbusy1();
        P3=P3|0x20;              //RS=1, RW="0", E1 =0
        P3=P3&0xbf;
        P0= dataW1;
        P3=P3|0x10;               //锁定数据
        P3=P3&0xef;
}*/

void LcdWriteData1( char dataW1 )
{

 Checkbusy1();
        LcdRS="1";                 //RS=1, RW="0", E2 =0
        LcdWR="0";
        P0= dataW1;
        LcdE1=1;                 //锁定数据
        LcdE1=0;
}
void LcdWriteData2( char dataW2 )
{

 Checkbusy2();
        LcdRS="1";                 //RS=1, RW="0", E2 =0
        LcdWR="0";
        P0= dataW2;
        LcdE2=1;                 //锁定数据
        LcdE2=0;
}

 // 显示光标定位
void LocateXY1( char posx,char posy)
{

Uchar temp;

 temp = posx & 0xf;
 posy &= 0x1;
 if ( posy )temp |= 0x40;
 temp |= 0x80;
 LcdWriteCommand1(temp,0);
}

// 按指定位置显示数出一个字符
void DispOneChar1(Uchar x,Uchar y,Uchar Wdata)
 {
 LocateXY1( x, y );         // 定位显示地址
 LcdWriteData1( Wdata );        // 写字符
}

void ePutstr1(Uchar x,Uchar y, Uchar code *ptr)
{
Uchar i,l=0;
 while (ptr[l] >31){l++;};
 for (i=0;i<l;i++) {
  DispOneChar1(x++,y,ptr);
  if ( x == 16 )
{
   x = 0; y ^= 1;
  }
 }
}