text1.lst

量程自动切换数字电压表原理图文件。。源程序

C51 COMPILER V8.08   TEXT1                                                                 11/05/2008 21:39:48 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE TEXT1
OBJECT MODULE PLACED IN Text1.OBJ
COMPILER INVOKED BY: E:\学习软件\keil\C51\BIN\C51.EXE Text1.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg52.h>
   2          unsigned char code dispbitcode[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
   3          unsigned char dispbuf[4];
   4          unsigned int i;
   5          unsigned int j;
   6          unsigned int getdata;
   7          unsigned int temp;
   8          unsigned int temp1;
   9          unsigned char count;
  10          unsigned char d;
  11          sbit ST=P3^0;
  12          sbit OE=P3^1;
  13          sbit EOC=P3^2;
  14          sbit CLK=P3^3;
  15          sbit P34=P3^4;
  16          sbit P35=P3^5;
  17          sbit P36=P3^6;
  18          sbit P20=P2^0;
  19          sbit P21=P2^1;
  20          sbit P22=P2^2;
  21          sbit P23=P2^3;
  22          sbit P17=P1^7;
  23          //sbit s3=P2^7;  //位定义，控制模拟开关
  24          sbit s2=P2^6;
  25          sbit s1=P2^5;
  26          #define  _v10 {s1=1;s2=0;}
  27          #define  _v20 {s1=0;s2=1;}
  28           
  29          
  30          unsigned char m;
  31          
  32          void TimeInitial();
  33          void Delay(unsigned int i);
  34          
  35          void TimeInitial()
  36          { TMOD=0x10;
  37   1       TH1=(65536-200)/256;
  38   1       TL1=(65536-200)%256;
  39   1       EA=1;
  40   1       ET1=1;
  41   1       TR1=1;
  42   1       }
  43          void Delay(unsigned int i)
  44          {
  45   1        unsigned int j;
  46   1        for(;i>0;i--)
  47   1        {
  48   2        for(j=0;j<125;j++)
  49   2        {;}
  50   2        }
  51   1      }
  52           
  53          void Display()
  54          
  55          { 
C51 COMPILER V8.08   TEXT1                                                                 11/05/2008 21:39:48 PAGE 2   

  56   1      P1=dispbitcode[dispbuf[3]];
  57   1       P20=0;
  58   1       P21=1;
  59   1       P22=1;
  60   1       P23=1;
  61   1       Delay(10);
  62   1       P1=0x00;
  63   1       P1=dispbitcode[dispbuf[2]];
  64   1       P17=1;
  65   1       P20=1;
  66   1       P21=0;
  67   1       P22=1;
  68   1       P23=1;
  69   1       Delay(10); 
  70   1       P1=0x00;
  71   1       P1=dispbitcode[dispbuf[1]];
  72   1       P20=1;
  73   1       P21=1;
  74   1       P22=0;
  75   1       P23=1;
  76   1       Delay(10);
  77   1       P1=0x00;
  78   1       P1=dispbitcode[dispbuf[0]];
  79   1       P20=1;
  80   1       P21=1;
  81   1       P22=1;
  82   1       P23=0;
  83   1       Delay(10);
  84   1       P1=0x00;
  85   1      }
  86          void main()
  87          {
  88   1      TimeInitial();
  89   1      P34=0;
  90   1      P35=0;
  91   1      P36=0;
  92   1      _v20;
  93   1      m=4;
  94   1      while(1)
  95   1      {       
  96   2              ST=0;
  97   2              OE=0;
  98   2              ST=1;
  99   2              ST=0;
 100   2              while(EOC==0);
 101   2              OE=1;
 102   2              getdata=P0;
 103   2              OE=0;
 104   2      
 105   2              if ( s1==0&&s2==1 && getdata<128)
 106   2              {       
 107   3                      _v10;
 108   3                      m=2;
 109   3                      
 110   3              
 111   3              }
 112   2              else if( s1==1&&s2==0&&  getdata>254)
 113   2              {
 114   3                      _v20;
 115   3                      m=4;
 116   3      
 117   3              }
C51 COMPILER V8.08   TEXT1                                                                 11/05/2008 21:39:48 PAGE 3   

 118   2              temp=(getdata*1.0/255)*500*m;
 119   2              dispbuf[0]=temp%10;
 120   2              dispbuf[1]=temp/10%10;
 121   2              dispbuf[2]=temp/100%10;
 122   2              dispbuf[3]=temp/1000;
 123   2              Display();
 124   2      
 125   2      }
 126   1      }
 127          
 128          void t1(void) interrupt 3 using 0
 129           {
 130   1        TH1=(65536-200)/256;
 131   1        TL1=(65536-200)%256;
 132   1        CLK=~CLK;
 133   1        }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    352    ----
   CONSTANT SIZE    =     10    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     17    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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