delay.lst

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C51 COMPILER V7.06   DELAY                                                                 05/18/2008 14:29:17 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE DELAY
OBJECT MODULE PLACED IN delay.OBJ
COMPILER INVOKED BY: E:\My Electronic\Tools\Design tools\keil7.06\C51\BIN\C51.EXE delay.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <REG52.H>
   2                     
   3          void delay_2us(unsigned char us)        //精确延时时间=2*us*T+5*T,      T为一个机器周期
   4          {
   5   1              while(--us);
   6   1      }
   7          
   8          void delay_1ms() //IR_Receive.c
   9          {
  10   1              delay_2us(250);
  11   1              delay_2us(246);
  12   1      }               
  13          
  14          void delay_ms(unsigned int ms)  //延时时间=8*ms*T(约等于,实际值比此值大,延时时间越长,误差越大,最大误差262*T
             -)
  15          {                                                                                       //T为大括号中函数的执行时间
  16   1              while(--ms)
  17   1              {
  18   2                      delay_2us(200);
  19   2                      delay_2us(200);
  20   2                      delay_2us(200);
  21   2                      delay_2us(200);
  22   2      
  23   2              }
  24   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     42    ----
   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)