ch06.lst

这是一个用keil C做的动态扫描7段LED数码管程序,是用proteus做的仿真.适合初学者学习使用.

C51 COMPILER V8.12   CH06                                                                  08/18/2008 22:23:37 PAGE 1   


C51 COMPILER V8.12, COMPILATION OF MODULE CH06
OBJECT MODULE PLACED IN ch06.OBJ
COMPILER INVOKED BY: C:\program files\Keil\C51\BIN\C51.EXE ch06.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg51.h>
   2          #define LEDS 2
   3          sbit PB1=P3^0;
   4          sbit PB2=P3^1;
   5          sbit PB3=P3^2;
   6          //sbit outpl=P0;
   7          unsigned char select[]={0x01,0x02};
   8          unsigned char LED_CODES[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x98};
   9          void delay(int x);
  10          void display(int x,y,z);
  11          int gw,sw;
  12          int s;
  13          char isflash;
  14          void main()
  15          {
  16   1              sw=0;
  17   1              gw=0;
  18   1              isflash=0;
  19   1              PB1=PB2=1;
  20   1              while(1)
  21   1              {
  22   2                      if(PB1==0)
  23   2                      {
  24   3                              isflash=1;
  25   3                              delay(1);
  26   3                              gw++;
  27   3                              if(gw>9)
  28   3                              {
  29   4                                      gw=0;
  30   4                                      sw++;
  31   4                                      if(sw>9)sw=0;
  32   4                              }
  33   3                      }
  34   2                      if(PB2==0)
  35   2                      {
  36   3                              isflash=1;
  37   3                              delay(1);
  38   3                              gw--;
  39   3                              if(gw<0)
  40   3                              {
  41   4                                      gw=9;
  42   4                                      sw--;
  43   4                                      if(sw<0)sw=9;   
  44   4                              }
  45   3      
  46   3                      }
  47   2                      if(PB3==0)
  48   2                      {
  49   3                              s=sw*10+gw;
  50   3                              //outpl=s&0xff;
  51   3                              isflash=0;
  52   3                      }  
  53   2                      if(isflash==1)
  54   2                      {
  55   3                              display(150,sw,gw);
C51 COMPILER V8.12   CH06                                                                  08/18/2008 22:23:37 PAGE 2   

  56   3                              P1=0xff;
  57   3                              delay(200);     
  58   3                      }
  59   2                      else
  60   2                      {
  61   3                              display(150,sw,gw);
  62   3                      }       
  63   2              }
  64   1      }
  65          void delay(int x)
  66          {
  67   1              int i;
  68   1              int j;
  69   1              for(i=x;i>0;i--)
  70   1                      for(j=120;j>0;j--);
  71   1      }
  72          void display(int x,y,z)
  73          {
  74   1              char i=0;
  75   1              int ws;
  76   1              int disp_code[2];
  77   1              int xh;
  78   1              disp_code[0]=y;
  79   1              disp_code[1]=z;
  80   1              for(xh=x;xh>0;xh--)
  81   1              {
  82   2                      ws=disp_code[i];
  83   2                      P2=0;
  84   2                      P1=LED_CODES[ws];
  85   2                      P2=select[i];
  86   2                      delay(1);
  87   2                      i++;
  88   2                      if(i>1)i=0;
  89   2              }
  90   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    299    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     19       4
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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