time1.lst

主要用于在单片机中可以随时变更的延时操作,采用单片机的定时器实现

C51 COMPILER V7.50   TIME1                                                                 10/25/2007 15:59:59 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE TIME1
OBJECT MODULE PLACED IN time1.OBJ
COMPILER INVOKED BY: F:\Program Files\keil\C51\BIN\C51.EXE time1.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          //20ms timing,
   2          
   3          #include<reg51.h>
   4          #define uchar unsigned char
   5          #define uint unsigned int
   6          void delay(uchar n)
   7          {
   8   1        loop:
   9   1          TL1=0x30;//2ms定时
  10   1          TH1=0x18;
  11   1          TR1=1;
  12   1          while(!TF1);//等待中断
  13   1              TF1=0;
  14   1              n--;
  15   1              if(n)goto loop;
  16   1              TR1=0;
  17   1      }
  18          void main()
  19          {
  20   1        TMOD=0x10;//set time0工作方式1,16位计数方式 
  21   1        delay(10);//循环10次,构成20MS,此出可根据实际情况修改
  22   1       }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     26    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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