test.lst

51单片机经典程序。初学者使用。包括键盘控制

C51 COMPILER V7.20   TEST                                                                  11/17/2005 09:55:06 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE TEST
OBJECT MODULE PLACED IN test.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE test.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          /*----------------------------------www.00IC.com-----------------------------------------
   2                                ╔=======================================╗
   3                                ┆     00IC-51开发板配套实验学习例程     ┆
   4                                ┆             Version 2.0.1             ┆
   5                                ┆                                       ┆
   6                                ┆               零零电子                ┆
   7                                ┆                                       ┆
   8                                ┆          http://www.00IC.com          ┆
   9                                ┆         E-mail:[e-mail]         ┆
  10                                ╚=======================================╝
  11          ************************* ********* 程序功能说明 ********************************************
  12                             按下S1按键产生中断，单片机对中断次数从0到9进行计数，同时在数码管上显示
  13                                             注意：做本试验时请将ISP下载线拔掉，不然数码管无法显示
  14          ********************************************************************************************/
  15          #include<reg52.h>
  16          sbit s1 = P2^0;
  17          sbit s2 = P2^1;
  18          sbit s3 = P2^2;
  19          sbit s4 = P2^3;
  20          sbit en = P2^5;
  21          int dispcount = 0;
  22          
  23          void Delay(int m)
  24          {
  25   1              while(--m);
  26   1      }
  27          
  28          void ext_int0() interrupt 0    //中断服务程序
  29          {  
  30   1              EA = 0;
  31   1              Delay(4000);
  32   1              dispcount++;              //每按一次中断按键，计数加一
  33   1          if(dispcount==10)     
  34   1                      dispcount=0;
  35   1              EA = 1;
  36   1      }
  37          
  38          void display(void)            //数码管显示函数
  39          {
  40   1              s1 = 0;
  41   1              s2 = 0;
  42   1              s3 = 0;
  43   1              s4 = 0;
  44   1              en = 1;
  45   1              switch(dispcount)
  46   1              {                                                       
  47   2                      case 0:
  48   2                              P0 = 0xC0;                       //display  0    
  49   2                              Delay(60000);    
  50   2                              break;
  51   2                      case 1:
  52   2                              P0 = 0xF9;               //display  1
  53   2                              Delay(60000);
  54   2                              break;
  55   2                      case 2: 
C51 COMPILER V7.20   TEST                                                                  11/17/2005 09:55:06 PAGE 2   

  56   2                              P0 = 0xA4;      
  57   2                              Delay(60000);            //display  2
  58   2                              break;
  59   2                      case 3:
  60   2                              P0 = 0xB0;               //display  3    
  61   2                              Delay(60000);     
  62   2                              break;
  63   2                      case 4:
  64   2                              P0 = 0x99;              //display  4
  65   2                              break;
  66   2                      case 5:
  67   2                              P0 = 0x92;          //display  5
  68   2                              Delay(60000);
  69   2                              break;
  70   2                      case 6:
  71   2                              P0 = 0x82;              //display  6
  72   2                              Delay(60000);
  73   2                              break;
  74   2                      case 7:
  75   2                              P0 = 0xF8;                      //display  7
  76   2                              Delay(60000);
  77   2                              break;
  78   2                      case 8:
  79   2                              P0 = 0x80;         //display  8
  80   2                              Delay(60000);
  81   2                              break;
  82   2                      case 9:
  83   2                              P0 = 0x90;         //display  9
  84   2                              Delay(60000);
  85   2                              break;
  86   2                      default:
  87   2                              P0 = 0x88;         //display  A 
  88   2                              Delay(60000);
  89   2                              break;
  90   2              }
  91   1      }
  92          void main()
  93          {
  94   1              TCON=0x01;  //中断设置
  95   1              IE=0x81;
  96   1              while(1)   //循环执行
  97   1              {
  98   2              display();     //只须调用显示函数
  99   2          }
 100   1      }
 101          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    188    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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