key-smg.lst

单片机C语言程序设计实训100例

C51 COMPILER V8.08   KEY_SMG                                                               08/10/2009 09:18:55 PAGE 1   


C51 COMPILER V8.08, COMPILATION OF MODULE KEY_SMG
OBJECT MODULE PLACED IN key-smg.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE key-smg.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <reg52.h>
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          
   5          uchar code DSY_CODE[]=
   6          {
   7                  0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff
   8          };
   9          uchar code DSY_Index[]=
  10          {
  11                  0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01
  12          };
  13          uchar Display_Buffer[]=
  14          {
  15                  0,10,10,10,10,10,10,10
  16          };
  17          
  18          void DelayMS(uint x)
  19          {
  20   1              uchar t;
  21   1              while(x--)
  22   1              {
  23   2                      for(t=0;t<120;t++);
  24   2              }
  25   1      }
  26          
  27          void Show_Count_ON_DSY()
  28          {
  29   1              uchar i;
  30   1              for(i=0;i<8;i++)
  31   1              {
  32   2                      P2 = DSY_Index[i];
  33   2                      P0 = DSY_CODE[Display_Buffer[i]];
  34   2                      DelayMS(2);
  35   2              }
  36   1      }
  37          
  38          void main()
  39          {
  40   1              uchar i;
  41   1              uchar Key_NO,Key_Counts=0;
  42   1              P0 = 0xff;
  43   1              P1 = 0xff;
  44   1              P2 = 0x00;
  45   1              while(1)
  46   1              {
  47   2                      Show_Count_ON_DSY();
  48   2                      P1 = 0xff;
  49   2                      Key_NO = P1;
  50   2                      switch(Key_NO)
  51   2                      {
  52   3                              case 0xfe: Key_Counts++;
  53   3                                                      if(Key_Counts>8)
  54   3                                                              Key_Counts = 8;
  55   3                                                      Display_Buffer[Key_Counts-1] = Key_Counts;
C51 COMPILER V8.08   KEY_SMG                                                               08/10/2009 09:18:55 PAGE 2   

  56   3                                                      break;
  57   3                              case 0xfd: if(Key_Counts>0)
  58   3                                                              Display_Buffer[--Key_Counts] = 10;
  59   3                                                      if(Key_Counts==0)       
  60   3                                                      Display_Buffer[0] = 0;
  61   3                                                      break;
  62   3                              case 0xfb: Display_Buffer[0]=0;
  63   3                                                      for(i=1;i<8;i++)
  64   3                                                              Display_Buffer[i] = 10;
  65   3                                                      Key_Counts = 0;
  66   3                      }
  67   2                      while(P1 != 0xff)
  68   2                              Show_Count_ON_DSY();
  69   2              }
  70   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    158    ----
   CONSTANT SIZE    =     19    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      8       1
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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