timer-smg.lst

单片机C语言程序设计实训100例

C51 COMPILER V8.08   TIMER_SMG                                                             08/10/2009 14:01:10 PAGE 1   


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

line level    source

   1          #include <reg52.h>
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          
   5          sbit K1 = P3^7;
   6          uchar i,Second_Counts,Key_Flag_Idx;
   7          bit Key_State;
   8          uchar DSY_CODE[]=
   9          {
  10                  0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f
  11          };
  12          
  13          void DelayMS(uint ms)
  14          {
  15   1              uchar t;
  16   1              while(ms--)
  17   1              {
  18   2                      for(t=0;t<120;t++);
  19   2              }
  20   1      }
  21          
  22          void Key_Event_Handle()
  23          {
  24   1              if(Key_State == 0)
  25   1              {
  26   2                      Key_Flag_Idx=(Key_Flag_Idx+1)%3;
  27   2                      switch(Key_Flag_Idx)
  28   2                      {
  29   3                              case 1:EA=1;ET0=1;TR0=1;break;
  30   3                              case 2:EA=0;ET0=0;TR0=0;break;
  31   3                              case 0:P0=0x3f;P2=0x3f;i=0;Second_Counts=0;
  32   3                      }
  33   2              }
  34   1      }
  35          
  36          void main()
  37          {
  38   1              P0 = 0x3f;
  39   1              P2 = 0x3f;
  40   1              i = 0;
  41   1              Second_Counts = 0;
  42   1              Key_State = 1;
  43   1              TMOD = 0x01;
  44   1              TH0  = (65535-50000)/256;
  45   1              TL0  = (65535-50000)%256; 
  46   1              while(1)
  47   1              {
  48   2                      if(Key_State != K1)
  49   2                      {
  50   3                              DelayMS(10);
  51   3                              Key_State = K1;
  52   3                              Key_Event_Handle();
  53   3                      }
  54   2              }
  55   1      }
C51 COMPILER V8.08   TIMER_SMG                                                             08/10/2009 14:01:10 PAGE 2   

  56          
  57          void DSY_Refresh() interrupt 1
  58          {
  59   1              TH0  = (65535-50000)/256;
  60   1              TL0  = (65535-50000)%256;
  61   1              if(++i==2)
  62   1              {
  63   2                      i = 0;
  64   2                      ++Second_Counts;
  65   2                      P0 = DSY_CODE[Second_Counts/10];
  66   2                      P2 = DSY_CODE[Second_Counts%10];
  67   2                      if(Second_Counts == 100) Second_Counts = 0;
  68   2              }
  69   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    197    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     13    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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