leg.lst

本程序实现了基于74ls373锁存器的LED显示系统的Protues仿真。实例简单明了

C51 COMPILER V7.06   LEG                                                                   12/24/2008 11:42:23 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE LEG
OBJECT MODULE PLACED IN leg.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE leg.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg51.h>
   2          #include <absacc.h>
   3          
   4          #define CON  XBYTE[0xFEFF]  
   5          unsigned char code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; //共阴极的
   6          sbit p31=P3^1;
   7          sbit p30=P3^0;
   8          void delay_ms(unsigned char ms )    
   9          {
  10   1              unsigned short i;
  11   1              while (ms--) {
  12   2                      for(i=0;i!=125;i++);
  13   2              }
  14   1      }
  15          
  16          void disp(int n)
  17          {
  18   1              char i,dat[4],a;
  19   1              dat[3]=n/1000;
  20   1              dat[2]=(n/100)%10;
  21   1              dat[1]=(n/10)%10;
  22   1              dat[0]=n%10;
  23   1              CON=0X01;
  24   1              a=1;
  25   1              for(i=0;i<4;i++)
  26   1              {               
  27   2                      CON=table[dat[i]];
  28   2                      P1=~a; 
  29   2                      delay_ms(3);//如果闪烁，把这个参数调试小些。
  30   2                      CON=0;
  31   2                      a<<=1;
  32   2              }
  33   1      }
  34          
  35          main()
  36          {
  37   1              while(1)
  38   1              { 
  39   2                      disp(5678);
  40   2                      delay_ms(20);//这个参数要尽可能小，在实际应用中 这个可以没有。但是 disp()中延时参数要非常小才行
  41   2      
  42   2              }       
  43   1      }
  44          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    158    ----
   CONSTANT SIZE    =     10    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       4
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.

C51 COMPILER V7.06   LEG                                                                   12/24/2008 11:42:23 PAGE 2   


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