timer.lst

上学时做的一个51单片机按键显示程序

C51 COMPILER V7.07   TIMER                                                                 11/25/2005 20:21:58 PAGE 1   


C51 COMPILER V7.07, COMPILATION OF MODULE TIMER
OBJECT MODULE PLACED IN timer.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE timer.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /*
   2          * Copyright(c)2005 - 2009 danise .China
   3          * All rights reserved.
   4          * Redistribution and use in source and bianry forms
   5          * with or without modification ,are permitted provided
   6          * that following conditions are met:
   7          * 
   8          * 1.Redistrubution of source code must retain the 
   9          * above copyright notice,this list of conditions and
  10          * following disclaimer.
  11          * 
  12          * 2.Redistributions in binary form must reproduce the 
  13          * above copyright notice,this list of conditions and 
  14          * following disclaimer in the documentation and /or other
  15          * materials provided with the distribution.
  16          * 
  17          * Alternately, this acknowledgment may appear in the software
  18          * itself,if and wherever such third-party acknowledgements
  19          * normally appear.
  20          *
  21          * This software is designed for key board and led display.
  22          * 
  23                  
  24          */
  25          #include "./include/datatypes.h"
  26          #include "./include/keyboard.h"
  27          #include "./include/timer.h"
  28          UINT8 clock0 = 0;
  29          UINT8 elapsetime = 0;
  30          UINT16 sreensaveclk = 0;
  31          /*
  32                  Timer0 interrupt server request 
  33          */
  34          void Timer0ISR(void) interrupt 1
  35          {       
  36   1              UINT8 keyVal = 0;
  37   1              CPL932_TL0 = 0x6b;
  38   1              CPL932_TH0 = 0x71; /*osc 7.3M  , 10 ms  */
  39   1              keyVal = GetSafeKeyValue();
  40   1              AnalyseKeyVal( keyVal );
  41   1      
  42   1      }
  43          /*
  44                  Timer1 interrupt server request 
  45          */
  46          void Timer1ISR(void) interrupt 3
  47          {
  48   1              EA = 0;
  49   1              CPL932_TL1 = 0x1;
  50   1              CPL932_TH1 = 0x0; /*osc 12M  , 10 ms  */
  51   1      
  52   1              if (sreensaveclk < 65530)
  53   1                      sreensaveclk++;
  54   1              else
  55   1                      sreensaveclk=65530; 
C51 COMPILER V7.07   TIMER                                                                 11/25/2005 20:21:58 PAGE 2   

  56   1      
  57   1              if(elapsetime<253)
  58   1                  elapsetime++;
  59   1              else
  60   1                      elapsetime=254;
  61   1      
  62   1              if(clock0>0)
  63   1                      clock0--;
  64   1      
  65   1              EA=1;
  66   1      
  67   1              
  68   1      }
  69          void wait( UINT8 n ) /* n < 255 */
  70          {
  71   1              clock0 = n;
  72   1              while(clock0){};
  73   1      }
  74          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    201    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      4    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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