v_test.lst

基于51设计的电压表

C51 COMPILER V7.50   V_TEST                                                                01/16/2008 15:45:17 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE V_TEST
OBJECT MODULE PLACED IN .\V_TEST.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE .\V_TEST.c DEBUG OBJECTEXTEND

line level    source

   1          #include"regx52.h"
   2          #include"absacc.h"
   3          
   4          #define IN0 XBYTE[0x7ff8]
   5          unsigned char dispbitcode[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
   6          unsigned char dispbuf[4]; //存放数码管显示数据
   7          unsigned int i;
   8          unsigned int j;
   9          unsigned char getdata;  //存放读入数据
  10          unsigned int temp;
  11          unsigned char count;
  12          sbit ad_busy = P3^2; //忙信号
  13          sbit CLK = P3^5;  //时钟信号
  14          
  15          void Delay(unsigned int i)//延时
  16          {
  17   1        unsigned int j;
  18   1        for(;i>0;i--)
  19   1        {
  20   2              for(j=0;j<125;j++)
  21   2              {;}
  22   2        }
  23   1      }
  24          
  25          void Display()
  26          { 
  27   1              P1=dispbitcode[dispbuf[3]];
  28   1              P3_0=0;
  29   1              P3_1=1;
  30   1              P3_3=1;
  31   1              P3_4=1;
  32   1              Delay(10);
  33   1              P1=0x00;
  34   1              P1=dispbitcode[dispbuf[2]];
  35   1              P1_7=1;//小数点
  36   1              P3_0=1;
  37   1              P3_1=0;
  38   1              P3_3=1;
  39   1              P3_4=1;
  40   1              Delay(10); 
  41   1              P1=0x00;
  42   1              P1=dispbitcode[dispbuf[1]];
  43   1              P3_0=1;
  44   1              P3_1=1;
  45   1              P3_3=0;
  46   1              P3_4=1;
  47   1              Delay(10);
  48   1              P1=0x00;
  49   1              P1=dispbitcode[dispbuf[0]];
  50   1              P3_0=1;
  51   1              P3_1=1;
  52   1              P3_3=1;
  53   1              P3_4=0;
  54   1              Delay(10);
  55   1              P1=0x00;
C51 COMPILER V7.50   V_TEST                                                                01/16/2008 15:45:17 PAGE 2   

  56   1      }
  57          
  58          void t1(void) interrupt 3 using 0 //CLOCK时钟信号
  59           {
  60   1              TH1=(65536-200)/256;
  61   1              TL1=(65536-200)%256;
  62   1              CLK=~CLK;
  63   1        }
  64          
  65          void TimeInitial()
  66          { 
  67   1              TMOD=0x10;//定时器工作在方式1
  68   1              TH1=(65536-200)/256;
  69   1              TL1=(65536-200)%256; //频率500HZ
  70   1              EA=1;
  71   1              ET1=1;
  72   1              TR1=1;
  73   1      }
  74          
  75          
  76          
  77          void main()
  78          {
  79   1              unsigned char p;
  80   1              unsigned char xdata *ad_adr;
  81   1              TimeInitial();
  82   1              ad_adr = &IN0;
  83   1              while(1){
  84   2                      *ad_adr = 0;
  85   2                      p=p;
  86   2                      p=p;
  87   2                      while(ad_busy==0);
  88   2                      getdata = *ad_adr;
  89   2                      temp=getdata*1.0/255*500;
  90   2                      dispbuf[0] = temp%10;
  91   2                      dispbuf[1] = temp/10%10;
  92   2                      dispbuf[2] = temp/100%10;
  93   2                      dispbuf[3] = temp/1000;
  94   2                      Display();
  95   2              }
  96   1      
  97   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    275    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     22       2
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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