C51 COMPILER V7.06   ADC0832                                                               08/25/2008 11:59:19 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE ADC0832
OBJECT MODULE PLACED IN adc0832.OBJ
COMPILER INVOKED BY: d:\Keil2\C51\BIN\C51.EXE adc0832.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg52.h>//包含相應的頭文件
   2          
   3          #include<stdio.h>
   4          #include<intrins.h>
   5          
   6          
   7          sbit CS=P3^4;//定義數模轉換器硬件對應引腳
   8          sbit CLK=P3^5;
   9          sbit DO=P3^6;
  10          sbit DI=P3^7;
  11          
  12          bit ADFlag;
  13          
  14          unsigned char code DIS[]={0xfd,0xfb,0xf7};  //定義數碼管位碼
  15          unsigned char code Datatab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};//7段數碼管段碼表
  16          data unsigned char  Display[3];//定義臨時存放數碼管數值
  17          
  18          void Init_Timer1(void)
  19          {
  20   1       TMOD |= 0x10;                       
  21   1       TH1=0xff;                      /* Init value */
  22   1       TL1=0x00;
  23   1       //PT1=1;                   /* 優先級    */
  24   1       EA=1;                      /* interupt enable */
  25   1       ET1=1;                     /* enable timer1 interrupt */
  26   1       TR1=1;  
  27   1      }
  28          
  29          unsigned char ReadADC(unsigned char channel)
  30          {
  31   1       unsigned char i,j;
  32   1       unsigned char Temp=0;
  33   1       channel <<=3;                
  34   1       channel |=3;
  35   1           CS =0;                  //按照資料進行時序操作
  36   1       for(i=0;i<3;i++)            //輸入指令，包含通道選擇
  37   1          {
  38   2           CLK=0;
  39   2               _nop_();
  40   2           DI=channel;
  41   2           channel>>=1;
  42   2           _nop_();
  43   2           CLK=1; 
  44   2           DI=0;
  45   2         }   
  46   1         CLK=0;
  47   1          _nop_();
  48   1         CLK=1;
  49   1      for(j=0;j<8;j++)   //處理讀入8位數據
  50   1         {
  51   2          CLK=0;
  52   2              _nop_();
  53   2          Temp=(Temp<<1)|DO;
  54   2         _nop_();
  55   2          CLK=1;
C51 COMPILER V7.06   ADC0832                                                               08/25/2008 11:59:19 PAGE 2   

  56   2          }
  57   1        CS=1;
  58   1      return(Temp); //返回轉換值
  59   1      
  60   1      }
  61          
  62          
  63          void Timer1_isr(void) interrupt 3 using 1//定時器1執行數碼管動態掃描
  64          {
  65   1      
  66   1       static unsigned char count,j;
  67   1       TH1=0xfb;              /* Init value */
  68   1       TL1=0x00;
  69   1       j++;
  70   1       if(j==200) {j=0;ADFlag=1;}
  71   1       P0=Display[count];
  72   1       P2=DIS[count];
  73   1       count++;
  74   1       if(count==3)
  75   1       count=0;
  76   1      
  77   1       
  78   1      }
  79          
  80          main()
  81          {
  82   1       unsigned char ADtemp;//定義中間變量
  83   1      // unsigned char temp;
  84   1       Init_Timer1();
  85   1      
  86   1      
  87   1                      while(1)
  88   1                      {
  89   2                       if(ADFlag)      //定時采集輸入模擬量
  90   2                 {
  91   3         
  92   3                      ADFlag=0;
  93   3                      ADtemp=ReadADC(0);
  94   3                      Display[0]=Datatab[((ADtemp-5)/50)]&0x7f;//處理電壓顯示
  95   3                      Display[1]=Datatab[((ADtemp-5)%50)/10];
  96   3                      Display[2]=Datatab[((ADtemp-5)%50)%10];
  97   3                         }
  98   2                      }
  99   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    205    ----
   CONSTANT SIZE    =     13    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      5    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)