fangbo1.lst

用单片机产生方波的一个小程序。 方波的频率为1HZ.

C51 COMPILER V7.20   FANGBO1                                                               11/01/2007 17:26:00 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE FANGBO1
OBJECT MODULE PLACED IN fangbo1.OBJ
COMPILER INVOKED BY: E:\Proteus\Keil C\C51\BIN\C51.EXE fangbo1.c ROM(SMALL) BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<regx51.h>
   2          #define TIMER0_COUNT  0XFC18
   3          int timer0_tick;
   4          
   5          static void timer0_isr(void) interrupt TF0_VECTOR using 1
   6          {TR0=0;
   7   1       TL0=(0XFC18&0X00FF);
   8   1       TH0=(0XFC18>>8);
   9   1       TR0=1;
  10   1       timer0_tick++;
  11   1       if(timer0_tick==1000)
  12   1         timer0_tick=0;
  13   1         P2=~P2;
  14   1       }
  15          
  16          static void timer0_initialize(void)
  17          {EA=0;
  18   1       timer0_tick=0;
  19   1       TMOD&=0XF0;
  20   1       TMOD|=0X01;
  21   1       TL0=(0XFC18&0X00FF);
  22   1       TH0=(0XFC18>>8);
  23   1       PT0=0;
  24   1       ET0=1;
  25   1       TR0=1;
  26   1       EA=1;
  27   1       }
  28          
  29           void main(void)
  30          {timer0_initialize();
  31   1       while(1);
  32   1       }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     76    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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