adc0832.lst

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C51 COMPILER V7.06   ADC0832                                                               03/25/2008 14:08:22 PAGE 1   


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

stmt level    source

   1          #include<reg52.h>//包含相应的头文件
   2          
   3          #include<stdio.h>
   4          #include<intrins.h>
   5          
   6          sbit CS=P1^6;//定义数模转换器硬件对应引脚
   7          sbit CLK=P1^3;
   8          sbit DO=P1^4;
   9          sbit DI=P1^5;
  10          
  11          bit ADFlag;
  12          
  13          unsigned char code DIS[]={0xf7,0xfb,0xfd};  //定义数码管位码
  14          unsigned char code Datatab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};//7段数码管段码表
  15          data unsigned char  Display[3];//定义临时存放数码管数值
  16          
  17          void Init_Timer1(void)
  18          {
  19   1       TMOD |= 0x10;                       
  20   1       TH1=0xff;                      /* Init value */
  21   1       TL1=0x00;
  22   1       //PT1=1;                   /* 优先级    */
  23   1       EA=1;                      /* interupt enable */
  24   1       ET1=1;                     /* enable timer1 interrupt */
  25   1       TR1=1;  
  26   1      }
  27          
  28          unsigned char ReadADC(unsigned char channel)
  29          {
  30   1       unsigned char i,j;
  31   1       unsigned char Temp=0;
  32   1       channel=channel+5;
  33   1           CS =0;                  //按照资料进行时序操作
  34   1       for(i=0;i<3;i++)            //输入指令，包含通道选择
  35   1          {
  36   2           CLK=0;
  37   2               _nop_();
  38   2           DI=channel;
  39   2           channel>>=1;
  40   2           _nop_();
  41   2           CLK=1;   
  42   2         }   
  43   1         CLK=0;
  44   1          _nop_();
  45   1         CLK=1;
  46   1      for(j=0;j<8;j++)   //处理读入8位数据
  47   1         {
  48   2          CLK=0;
  49   2              _nop_();
  50   2          Temp=(Temp<<1)|DO;
  51   2         _nop_();
  52   2          CLK=1;
  53   2          }
  54   1        CS=1;
  55   1      return(Temp); //返回转换值
C51 COMPILER V7.06   ADC0832                                                               03/25/2008 14:08:22 PAGE 2   

  56   1      
  57   1      }
  58          
  59          
  60          void Timer1_isr(void) interrupt 3 using 1//定时器1执行数码管动态扫描
  61          {
  62   1      
  63   1       static unsigned char count,j;
  64   1       TH1=0xfb;              /* Init value */
  65   1       TL1=0x00;
  66   1       j++;
  67   1       if(j==200) {j=0;ADFlag=1;}
  68   1       P0=Display[count];
  69   1       P2=DIS[count];
  70   1       count++;
  71   1       if(count==3)
  72   1       count=0;
  73   1      
  74   1       
  75   1      }
  76          
  77          main()
  78          {
  79   1       unsigned char ADtemp;//定义中间变量
  80   1      // unsigned char temp;
  81   1       Init_Timer1();
  82   1      
  83   1      
  84   1                      while(1)
  85   1                      {
  86   2                       if(ADFlag)      //定时采集输入模拟量
  87   2                 {
  88   3         
  89   3                      ADFlag=0;
  90   3                      ADtemp=ReadADC(2);
  91   3                      Display[0]=Datatab[((ADtemp-5)/50)]&0x7f;//处理电压显示
  92   3                      Display[1]=Datatab[((ADtemp-5)%50)/10];
  93   3                      Display[2]=Datatab[((ADtemp-5)%50)%10];
  94   3                         }
  95   2                      }
  96   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    197    ----
   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)