main.lst

从零开始学51单片机源代码

C51 COMPILER V8.08   MAIN                                                                  07/02/2012 22:51:19 PAGE 1   


C51 COMPILER V8.08, 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          //main.c
   2          #include <reg51.h>      //包含头文件    
   3          #include "fun.h"  
   4          
   5          void  INT0_interrupt() interrupt 0
   6          {
   7   1              running = ~running;       //切换暂停/计时
   8   1              if (running)
   9   1              {//切换为运行 
  10   2                      TR0 = 1;
  11   2              }
  12   1              else
  13   1              { //切换为暂停 
  14   2                      TR0 = 0;
  15   2              } 
  16   1      }
  17          
  18          void Timer0_interrupt() interrupt 1
  19          {
  20   1              TH0 = T0_50ms >> 8;        //重装初值 
  21   1              TL0 = T0_50ms;
  22   1      
  23   1              if ((++ count_in_T0) == 20)//count_in_T0自加到20，计时1s
  24   1              {
  25   2                      count_in_T0 = 0;
  26   2                      if ( (++ display_num) ==60)
  27   2                      {//display_num自加1后判断是否等于60
  28   3                              display_num = 0;
  29   3                      }
  30   2              }
  31   1      }
  32          
  33          main()
  34          {
  35   1              unsigned char shi, ge;  //定义十位、个位要输出的数据 
  36   1      
  37   1              init_port();
  38   1              init_int();     
  39   1              init_timer();
  40   1              
  41   1              display_num = 0;
  42   1              count_in_T0 = 0;
  43   1              running = 0;
  44   1              //把两个数码管都关闭 
  45   1              en2 = 1;
  46   1              en1 = 1;
  47   1              EA = 1;//开总中断 
  48   1              TR0 = 1;//启动T0
  49   1      
  50   1              while(1)
  51   1              {
  52   2                      shi =  display_num / 10;
  53   2                      ge = display_num % 10;
  54   2                      display(shi,ge);
  55   2                      //检测清零按键 
C51 COMPILER V8.08   MAIN                                                                  07/02/2012 22:51:19 PAGE 2   

  56   2                      if ( clear == 0)
  57   2                      {
  58   3                              ms_delay(10);
  59   3                              if ( clear == 0 )
  60   3                              {//确认按下清零按钮 
  61   4                                      if ( !running )//如果处于暂停状态 
  62   4                                              display_num = 0;
  63   4                              }
  64   3                      }
  65   2              }
  66   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    200    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     12    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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