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     编程技巧: 优质代码的十诫

    使用LPC932制作的一款电表---LcdParse
    程序匠人 发表于 2005-10-15 15:31:00  阅读全文 | 回复(0) | 引用通告 | 编辑

    使用LPC932制作的一款电表---LcdParse
    redbug 发表于 2005-10-14 16:35:00 


    #i nclude <REG932.H>
    #i nclude <define.h>
    #i nclude <Stdio.h>
    #i nclude <Intrins.h>

    void LcdFull(unsigned char DataOne,unsigned char DataTwo,unsigned char DataThree,unsigned char DataFour)
    {
        unsigned char data i,j,k;
         unsigned char idata DataBufA[4],DataBufB[4];
        unsigned char code    Digit[12]={   
                                        0xBE,    //0
                                        0x06,    //1
                                        0x7C,    //2
                                        0x5E,    //3
                                        0xC6,    //4
                                        0xDA,    //5
                                        0xFA,    //6
                                        0x0E,    //7
                                        0xFE,    //8
                                        0xDE,    //9
                                        0xf8,   //a--E
                                        0x40,   //b--_
                                      };  
       DataBufA[0]=DataOne;
       DataBufA[1]=DataTwo;
       DataBufA[2]=DataThree;
       DataBufA[3]=DataFour;
      
       if(BataMoveFg)
       {
         for(i=0;i<4;i++)//
         {
           k=DataBufA[i];           
           j=DataBufA[i+1];           
           k=k&0x0f;                       
           k=k<<4;                           
           j=j>>4;                   
           j=j&0x0f;   
           DataBufB[i]=k|j;
         }
       }
       for(i=0;i<3;i++)
       {
          k=DataBufB[i] & 0xf0;
          k=k>>4;
          LcdShowBuf[i+i]=Digit[k];
          k=DataBufB[i] & 0x0f;
          LcdShowBuf[i+i+1]=Digit[k];
       }

    }
    void LcdDisplayData(unsigned char DataOne,unsigned char DataTwo,unsigned char DataThree,unsigned char DataFour,unsigned char DataFive,unsigned char DataSix,unsigned char DataSeven)
    {
           unsigned char data i;

        LcdShowBuf[6]=DataFive;
        LcdShowBuf[7]=DataSix;

        switch(DataSeven)
        {
           case 0x00 : //没有小数点的显示/                 
                       LcdFull(DataOne,DataTwo,DataThree,DataFour);                 
           break;
           case 0x21 : //第2位带小数点的显示/                 
                       LcdFull(DataOne,DataTwo,DataThree,DataFour); 
                       LcdShowBuf[1]=LcdShowBuf[1]|0x01;
           break;
           case 0x41 : //第4位带小数点的显示/                 
                       LcdFull(DataOne,DataTwo,DataThree,DataFour); 
                       LcdShowBuf[1]=LcdShowBuf[1]|0x01;
                       LcdShowBuf[3]=LcdShowBuf[3]|0x01;
           break;
           case 0x51 : //第5位带小数点的显示/                 
                       LcdFull(DataOne,DataTwo,DataThree,DataFour); 
                       LcdShowBuf[4]=LcdShowBuf[4]|0x01;
           break;
       }
       if(ComFg)
       {
            LcdShowBuf[7]=LcdShowBuf[7]|0x10;
       }
       else
       {
            LcdShowBuf[7]=LcdShowBuf[7]&0xef;
       }
       if(ReverseFgToLcd)
       {
            LcdShowBuf[7]=LcdShowBuf[7]|0x40;
       }
       else
       {
            LcdShowBuf[7]=LcdShowBuf[7]&0xbf;
       }    
       LcdStart();
       LcdSendId(0xa0);               //写数据操作
       LcdSendAddress(0x00);
       for(i=0;i<8;i++)
       {
            LcdSendByte(LcdShowBuf[i]);
            Delay(LcdDelay);
       }
       LcdStop();
    }
    void LcdParse(void)
    {
        unsigned char data i,j,k,l,m;
        unsigned char data databuf[4];
        if(LcdTimeFg)
        {
            m=LcdShowBit[0]&0x80;
            switch(LcdRunData)
            {
                case 0x01 ://第01种显示方式数据提取到显示缓冲区---当前日期/                  
                           if(LcdShowBit[0]&0x01)
                           {
                              i=IicByteRead(0x64,0x40) & 0x3f;
                              j=IicByteRead(0x64,0x50) & 0x1f;
                              k=IicByteRead(0x64,0x60);
                              l=0;
                              BataMoveFg=0;//不执行移位操作
                              LcdDisplayData(i,j,k,l,0x80,0x00,0x41);
                           }
                           else
                           {
                              LcdRunData=0x02;
                           }
                  break;      
                  case 0x02 ://第02种显示方式数据提取到显示缓冲区---当前时间/
                             if(LcdShowBit[0]&0x02)
                             {
                                 k=IicByteRead(0x64,0x00) & 0x7f;
                                 j=IicByteRead(0x64,0x10) & 0x7f;
                                 i=IicByteRead(0x64,0x20) & 0x3f;
                                 l=0;
                                 BataMoveFg=0;//不执行移位操作
                                 LcdDisplayData(i,j,k,l,0x40,0x0c,0x00);
                             }
                             else
                             {
                                 LcdRunData=0x03;
                             }
                  break;                               
                  case 0x03 ://第03种显示方式数据提取到显示缓冲区---当前总电量(整数加小数|整数)
               
                                //电表先显示整数---6位整数
                                if(m)
                             {       
                                 BataMoveFg=0;//不执行移位操作
                                    for(i=0;i<4;i++)   
                                    {
                                       databuf[i]=HexToBcd(SumPulseData[i]);
                                    }
                                 LcdDisplayData(databuf[2],databuf[1],databuf[0],0x00,0x08,0x82,0x00);
                             }
                             //电表显示整数加小数---5位整数加一位小数
                             else
                             {
                                 BataMoveFg=1;//执行移位操?
                                    for(i=0;i<4;i++)   
                                    {
                                       databuf[i]=HexToBcd(SumPulseData[i]);
                                    }
                                 LcdDisplayData(databuf[3],databuf[2],databuf[1],databuf[0],0x08,0x82,0x51);
                             }
                  break;                              
                  case 0x04 ://第04种显示方式数据提取到显示缓冲区---当前总电量(小数)/
                             //显示小数---4位小数最后两位代表脉冲个数
                             if(m)
                             {
                                 BataMoveFg=0;//不执行移位操作
                                 LcdDisplayData(0x00,SumPulseData[4],SumPulseData[3],0x00,0x08,0x82,0x21);
                             }
                             else
                             {
                                   LcdRunData=0x05;
                                }
                  break;                              
                  case 0x05 ://第05种显示方式数据提取到显示缓冲区---当前峰电量(整数加小数|整数)/
                             //电表先显示整数---6位整数 
                                if(m)
                              {       
                                  BataMoveFg=0;//不执行移位操作
                                     for(i=0;i<4;i++)   
                                     {
                                        databuf[i]=HexToBcd(FengPulseData[i]);
                                     }
                                  LcdDisplayData(databuf[2],databuf[1],databuf[0],0x00,0x04,0x82,0x00);
                              }
                              //电表显示整数加小数---5位整数加一位小数
                              else
                              {
                                  BataMoveFg=1;//执行移位操?
                                     for(i=0;i<4;i++)   
                                     {
                                        databuf[i]=HexToBcd(FengPulseData[i]);
                                     }
                                  LcdDisplayData(databuf[3],databuf[2],databuf[1],databuf[0],0x04,0x82,0x51);
                              }
                  break;                         
                  case 0x06 ://第06种显示方式数据提取到显示缓冲区---当前峰电量(小数)/
                             //显示小数---4位小数最后两位代表脉冲个数
                             if(m)
                             {
                                 BataMoveFg=0;//不执行移位操作
                                 for(i=0;i<4;i++)   
                                    {
                                        databuf[i]=HexToBcd(FengPulseData[i]);
                                    }
                                 LcdDisplayData(0x00,databuf[4],databuf[3],0x00,0x04,0x82,0x21);
                             }
                                else
                                {
                                    LcdRunData=0x07;
                                }  
                  break;       
                  case 0x07 ://第07种显示方式数据提取到显示缓冲区---当前谷电量(整数加小数|整数)/
                                //电表先显示整数---6位整数
                                if(m)
                             {
                                 BataMoveFg=0;//不执行移位操作
                                    for(i=0;i<4;i++)   
                                    {
                                        databuf[i]=HexToBcd(GuPulseData[i]);
                                    }
                                 LcdDisplayData(databuf[2],databuf[1],databuf[0],0x00,0x01,0x82,0x00);
                             }
                             //电表显示整数加小数---5位整数加一位小数
                             else
                             {
                                 BataMoveFg=1;//执行移位操?
                                    for(i=0;i<4;i++)   
                                    {
                                        databuf[i]=HexToBcd(GuPulseData[i]);
                                    }
                                 LcdDisplayData(databuf[3],databuf[2],databuf[1],databuf[0],0x01,0x82,0x51);
                             }
                  break;        
                  case 0x08 ://第08种显示方式数据提取到显示缓冲区---当前谷电量(小数)/
                             //显示小数---4位小数最后两位代表脉冲个数
                             if(m)
                             {
                                 BataMoveFg=0;//不执行移位操作
                                 for(i=0;i<4;i++)   
                                    {
                                       databuf[i]=HexToBcd(GuPulseData[i]);
                                    }
                                 LcdDisplayData(0x00,databuf[4],databuf[3],0x00,0x01,0x82,0x21);
                             }
                                else
                                {
                                    LcdRunData=0x09;
                                }
                  break;                             
                  case 0x09 ://第09种显示方式数据提取到显示缓冲区---电表地址(后6位)/
                             //电表显示后六位表地址---6位整数
                                if(LcdShowBit[0]&0x20)
                             {
                                 IicMuchByteRead(0xa0,0x83,3);
                                 BataMoveFg=0;//不执行移位操作
                                 LcdDisplayData(IIcBuf[0],IIcBuf[1],IIcBuf[2],0x00,0x01,0x82,0x00);
                             }
                             else
                             {
                                 LcdRunData=0x0a;
                             }
                  break;                                 
                  case 0x0a ://第10种显示方式数据提取到显示缓冲区---电表自检/
                             //电表显示错误特征码(E-0000)
                                if(LcdShowBit[0]&0x40)
                             {
                                 IIcBuf[2]=IicByteRead(0xa0,0xC9);
                                 BataMoveFg=0;//不执行移位操作
                                 LcdDisplayData(0xab,0x00,IIcBuf[2],0x00,0x00,0x00,0x00);
                             }
                             else
                             {
                                 LcdRunData=0x0b;
                             }
                  break;                                
                  case 0x0b ://第11种显示方式数据提取到显示缓冲区---上月总电量(整数加小数|整数)/
                               //电表先显示整数---6位整数 
                                if(LcdShowBit[1]&0x01)
                             {
                                  if(m)
                               {
                                   IicMuchByteRead(0xa0,0x20,3);
                                   BataMoveFg=0;//不执行移位操作
                                   LcdDisplayData(IIcBuf[2],IIcBuf[1],IIcBuf[0],0x00,0x18,0x82,0x00);
                               }
                               //电表显示整数加小数---5位整数加一位小数
                               else
                               {
                                   IicMuchByteRead(0xa0,0x20,4);
                                   BataMoveFg=1;//执行移位操作
                                   LcdDisplayData(IIcBuf[3],IIcBuf[2],IIcBuf[2],IIcBuf[0],0x18,0x82,0x51);
                               }
                             }
                             else
                             {
                                   LcdRunData=0x0d;
                             }
                  break;                            
                  case 0x0c ://第12种显示方式数据提取到显示缓冲区---上月总电量(小数)/
                             //显示小数---4位小数最后两位代表脉冲个数
                             if(m)
                             {
                                 IicMuchByteRead(0xa0,0x23,2);
                                 BataMoveFg=0;//不执行移位操作
                                 LcdDisplayData(0x00,IIcBuf[2],IIcBuf[1],0x00,0x18,0x82,0x21);
                             }
                  break;
                  case 0x0d ://第13种显示方式数据提取到显示缓冲区---上月峰电量(整数加小数|整数)/
                             //电表先显示整数---6位整数 
                                if(LcdShowBit[1]&0x02)
                             {
                                    if(m)
                                 {
                                     IicMuchByteRead(0xa0,0x25,3);
                                     BataMoveFg=0;//不执行移位操作
                                     LcdDisplayData(IIcBuf[2],IIcBuf[1],IIcBuf[0],0x00,0x14,0x82,0x00);
                                 }
                                 //电表显示整数加小数---5位整数加一位小数
                                 else
                                 {
                                     IicMuchByteRead(0xa0,0x25,4);
                                     BataMoveFg=1;//执行移位操作
                                     LcdDisplayData(IIcBuf[3],IIcBuf[2],IIcBuf[1],IIcBuf[0],0x14,0x82,0x51);
                                 }
     
     

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