main.lst

一个很好的数字电压表的源程序～～～～～～～值得大家参考。

C51 COMPILER V8.02   MAIN                                                                  12/11/2006 20:54:22 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <AT89X52.H>
   2           
   3          unsigned char code dispbitcode[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
   4          unsigned char code dispcode[]={0x3f,0x6f,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00};
   5          unsigned char dispbuf[8]={10,10,10,10,0,0,0,0};
   6          unsigned char dispcount;
   7          unsigned char getdata;
   8          unsigned int temp;
   9          unsigned char i;
  10          
  11          sbit ST=P3^0;
  12          sbit OE=P3^1;
  13          sbit EOC=P3^2;
  14          sbit CLK=P3^3;
  15          
  16          void main()
  17          {
  18   1       ST=0;
  19   1       OE=0;
  20   1       ET0=1;
  21   1       ET1=1;
  22   1       EA=1;
  23   1       TMOD=0X12;
  24   1       TH0=216;
  25   1       TL0=216;
  26   1       TH1=(65536-4000)/256;
  27   1       TL1=(65536-4000)%256;
  28   1       TR1=1;
  29   1       TR0=1;
  30   1       ST=1;
  31   1       ST=0;
  32   1       while(1)        
  33   1        {
  34   2                if(EOC==1)
  35   2                {
  36   3                 OE=1;
  37   3                 getdata=P0;
  38   3                 OE=0;
  39   3                 temp=getdata*235;
  40   3                 temp=temp/128;
  41   3                 i=5;
  42   3                 dispbuf[0]=10;
  43   3                 dispbuf[1]=10;
  44   3                 dispbuf[2]=10;
  45   3                 dispbuf[3]=10;
  46   3                 dispbuf[4]=0;
  47   3                 dispbuf[5]=0;
  48   3                 dispbuf[6]=0;
  49   3                 dispbuf[7]=0;
  50   3                 while(temp/10)
  51   3                   {
  52   4                         dispbuf[i]=temp%10;
  53   4                         temp=temp/10;
  54   4                         i++;
  55   4                       }         
C51 COMPILER V8.02   MAIN                                                                  12/11/2006 20:54:22 PAGE 2   

  56   3                 dispbuf[i]=temp;
  57   3                 ST=1;
  58   3                 ST=0;                
  59   3                }                                                                                                     
  60   2        }
  61   1      
  62   1      }
  63          
  64          void t0(void) interrupt 1 using 0
  65          {
  66   1       CLK=~CLK;
  67   1      }
  68          
  69          void t1(void) interrupt 3 using 0
  70          {
  71   1       TH1=(65536-4000)/256;
  72   1       TL1=(65536-4000)%256;
  73   1       P1=dispcode[dispbuf[dispcount]];
  74   1       P2=dispcode[dispcount];
  75   1       if(dispcount==7)
  76   1        {
  77   2              P1=P1|0X80;
  78   2         }
  79   1       dispcount++;
  80   1       if(dispcount==8)
  81   1        {
  82   2         dispcount=0;
  83   2        }
  84   1      }
  85          
  86                                    


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    215    ----
   CONSTANT SIZE    =     18    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     13    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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