counter.lst

一种多功能频率计

C51 COMPILER V8.08   COUNTER                                                               09/23/2008 07:30:53 PAGE 1   


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

line level    source

   1          #include<reg52.h>
   2          #include<counter.h>
   3          unsigned long INT0_count=0;
   4           uchar Cflag;
   5           uchar Kflag=1;
   6          unsigned long counter(uchar gate_time)
   7          { unsigned long  count=0;
   8   1        uint stop;
   9   1         Kflag=1;
  10   1        
  11   1        
  12   1        stop=gate_time*20;
  13   1        TH1=0x46; /*定时器1装处初值*/
  14   1        TL1=0x00;
  15   1              EX1=1; 
  16   1              ET1=1; /*开定时器中断*/
  17   1              EX0=1;/*开外部中断*/
  18   1              TR1=1; /*开定时器1*/
  19   1              EA=1;  /*开总中断*/
  20   1      
  21   1              while(Kflag&&(Cflag<=stop));
  22   1          EX0=0;    /*关外部中断*/
  23   1              TR1=0;
  24   1          EA=0;
  25   1          Cflag=0;
  26   1              count=INT0_count;    /*闸门时间内中断次数*/
  27   1              INT0_count=0;
  28   1          return count;
  29   1      }
  30          void time1() interrupt 3 using 1
  31          { 
  32   1        TR1=0;
  33   1        Cflag++; 
  34   1        TH1=0x46;
  35   1        TL1=0x00;                      
  36   1        TR1=1;
  37   1      }
  38          
  39          void int0() interrupt 0 using 0
  40          {
  41   1              EX0=0;
  42   1              INT0_count++;
  43   1              EX0=1;
  44   1      }
  45          
  46          void int1() interrupt 2 using 2
  47          {
  48   1              Kflag=0;
  49   1              INT0_count=0;//若产生中断则返回值为0，在measure_F函数中检测出有键按下
  50   1              EX1=0;
  51   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    151    ----
C51 COMPILER V8.08   COUNTER                                                               09/23/2008 07:30:53 PAGE 2   

   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      6       4
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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