main.lst

c51

C51 COMPILER V7.20   MAIN                                                                  01/14/2008 15:32:37 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: F:\Program_Files\Keil\C51-Product\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <reg52.h>
   2          
   3          #include <kc51.h>
   4          
   5          //精确定时1秒钟闪烁LED
   6          //P1_0 要控制的LED灯
   7          #define K1 P3_2    //按键K1
   8          
   9          
  10          void main(void)
  11          {
  12   1              RCAP2H =0x10; //赋T2的预置值0x1000，溢出30次就是1秒钟
  13   1              RCAP2L =0x00;   
  14   1      
  15   1              EA=1;     //打开总中断
  16   1              ET2=1;    //打开定时器2中断
  17   1              TR2=1;    //启动定时器
  18   1      
  19   1              while(1)
  20   1              {               ;//主程序在这里就不断自循环，实际应用中，这里是做主要工作
  21   2              }
  22   1      }
  23          
  24          //定时器2中断
  25          timer2() interrupt 5  
  26          {
  27   1              static uchar t;
  28   1              TF2=0;
  29   1              t++;
  30   1      
  31   1              if(t==30) //T2的预置值0x1000，溢出30次就是1秒钟,晶振22118400HZ
  32   1              {
  33   2                      t=0;
  34   2                      P1_0 = ~P1_0;   //反转LED灯的亮灭
  35   2              }
  36   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     37    ----
   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)