text2.lst

定时器应用程序

C51 COMPILER V7.06   TEXT2                                                                 03/30/2009 20:03:16 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE TEXT2
OBJECT MODULE PLACED IN Text2.OBJ
COMPILER INVOKED BY: F:\施伟\KEIL\C51\BIN\C51.EXE Text2.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <reg52.h>
   2          sbit  P0_0=P0^0;
   3          unsigned char count=0;
   4                  void main (void)        
   5                  {
   6   1                      TMOD=0x01;//P0工作（定时）方式一
   7   1                      TH0=0xb1;
   8   1                      TL0=0xdf;//计数20毫秒的基础值
   9   1                      TR0=1;//启动T0
  10   1                              while(1)
  11   1                              {
  12   2                                      if(TF0)
  13   2                                      {//TFO是溢出标志（如果满了TFO的值就是1）
  14   3                                              TH0=0xb1;
  15   3                                              TL0=0xdf;
  16   3                                              TF0=0;//软件置零
  17   3                                              count++;
  18   3                                                      if(count>=50)
  19   3                                                      {
  20   4                                                              count=0;
  21   4                                                              P0_0=~P0_0;
  22   4                                                      }
  23   3                                      }
  24   2                              }
  25   1                      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     38    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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