jianpancxu.lst

本文件包含了使用C语言编写单片机的各种入门程序

C51 COMPILER V8.02   JIANPANCXU                                                            07/28/2008 14:13:59 PAGE 1   


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

line level    source

   1          #include<reg51.h>
   2          sbit sda=P0^2;
   3          sbit scl=P0^3;
   4          unsigned int b,keycode;
   5          code char  led[17]={0x11,0xd7,
   6          0x32,0x92,0xd4,0x98,0x18,0xd3,
   7          0x10,0x90,0x50,0x1c,0x39,0x16,
   8          0x38,0x78,0xff};
   9          
  10          void delay(int k)
  11          {
  12   1      int l;
  13   1      for(;k>0;k--)
  14   1      for(l=0;l<400;l++);
  15   1      }
  16          
  17          shift(int k)
  18          {
  19   1      int t,led1=led[k];
  20   1      for(t=0;t<8;t++)
  21   1      {
  22   2      scl=0;
  23   2      if(led1&0x80)
  24   2      sda=1;
  25   2      else 
  26   2      sda=0;
  27   2      scl=1;
  28   2      scl=0;
  29   2      sda=0;
  30   2      led1=led1<<1;
  31   2      }
  32   1      }
  33          
  34          display()
  35          {
  36   1      shift(16);
  37   1      shift(16);
  38   1      shift(16);
  39   1      shift(16);
  40   1      shift(16);
  41   1      shift(16);
  42   1      shift(16);
  43   1      shift(b);
  44   1      }
  45          
  46          keyscan()
  47          {
  48   1      int k1,k2;
  49   1      P2=0xf0;
  50   1      k1=P2; 
  51   1      P2=0x0f;
  52   1      k2=P2;
  53   1      keycode=k1+k2;
  54   1      switch(keycode)
  55   1      {
C51 COMPILER V8.02   JIANPANCXU                                                            07/28/2008 14:13:59 PAGE 2   

  56   2      case 0xe7: b=0;break;
  57   2      case 0xd7: b=1;break;
  58   2      case 0xb7: b=2;break;
  59   2      case 0x77: b=3;break;
  60   2      
  61   2      case 0xeb: b=4;break;
  62   2      case 0xdb: b=5;break;
  63   2      case 0xbb: b=6;break;
  64   2      case 0x7b: b=7;break;
  65   2      
  66   2      case 0xed: b=8;break;
  67   2      case 0xdd: b=9;break;
  68   2      case 0xbd: b=10;break;
  69   2      case 0x7d: b=11;break;
  70   2      
  71   2      case 0xee: b=12;break;
  72   2      case 0xde: b=13;break;
  73   2      case 0xbe: b=14;break;
  74   2      case 0x7e: b=15;break;
  75   2      } 
  76   1      
  77   1      }
  78          
  79           main()
  80          {
  81   1      while(1)
  82   1      {
  83   2      keyscan();
  84   2      display();
  85   2      delay(200);
  86   2      }
  87   1      }
  88          
  89          
  90          
  91          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    330    ----
   CONSTANT SIZE    =     17    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      4    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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