shiyan.lst

单片机C开发键盘显示,用proteus仿真.

C51 COMPILER V7.09   SHIYAN                                                                12/22/2005 15:36:25 PAGE 1   


C51 COMPILER V7.09, COMPILATION OF MODULE SHIYAN
OBJECT MODULE PLACED IN SHIYAN.OBJ
COMPILER INVOKED BY: D:\Program Files\C51\BIN\C51.EXE SHIYAN.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include"reg51.h"
   2          #include"LCD1602.h"
   3          
   4          #include"hardware.h"
   5          
   6          char code tab[4][4]={           {'1','4','7','#'},
   7                                                  {'2','5','8','0'},
   8                                                  {'3','6','9','*'},
   9                                                  {'A','B','C','D'}};       //0到F的16个键植
  10          
  11          void delay(unsigned char a)
  12                  {
  13   1              unsigned char i;
  14   1              while(a--)
  15   1                      for(i=100;i>0;i--)
  16   1                              ;
  17   1              }
  18          
  19          char kbscan()          //键盘扫描
  20                  {
  21   1              unsigned char hang,lie,key;
  22   1              if(P3!=0x0f)
  23   1              delay(5);
  24   1              if(P3!=0x0f)
  25   1                      {
  26   2                      switch(P3&0x0f)
  27   2                                      {
  28   3                                      case 0x0e:lie=0;break;
  29   3                                      case 0x0d:lie=1;break;
  30   3                                      case 0x0b:lie=2;break;
  31   3                                      case 7:lie=3;break;
  32   3                                      }
  33   2                      P3=0xf0;
  34   2                      P3=0xf0;
  35   2                      switch(P3&0xf0)
  36   2                                      {
  37   3                                      case 0xe0:hang=0;break;
  38   3                                      case 0xd0:hang=1;break;
  39   3                                      case 0xb0:hang=2;break;
  40   3                                      case 0x70:hang=3;break;
  41   3                                      }
  42   2                      P3=0x0f;
  43   2                      while(P3!=0x0f);
  44   2                      key=tab[hang][lie];
  45   2                      }
  46   1              else
  47   1                      key=0;
  48   1              return (key);
  49   1              }
  50          
  51          void main()
  52                  {
  53   1              unsigned char temp;
  54   1              LCD_initial();
  55   1              LCD_prints("piaoling");
C51 COMPILER V7.09   SHIYAN                                                                12/22/2005 15:36:25 PAGE 2   

  56   1              P3=0x0f;
  57   1              P0=0xff;
  58   1              while(1)
  59   1                      {
  60   2                      temp=kbscan();
  61   2                      if(temp!=0)
  62   2                              {
  63   3                              P0=temp;
  64   3                              LCD_set_position(0x40);
  65   3                              LCD_printc(temp);
  66   3                              }
  67   2                      }
  68   1              }
  69          
  70          
  71          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    203    ----
   CONSTANT SIZE    =     25    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       4
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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