C51 COMPILER V7.50   MAIN                                                                  05/03/2005 21:25:33 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: D:\Keil\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <reg51.h>
   2          #include <math.h>
   3          
   4          #define uint unsigned int
   5          
   6          sbit P2_4=P2^4;
   7          
   8          uint t=25000;
   9          uint v=0;
  10          uint count=0;
  11          
  12          void usec(uint c)       //延時１微秒
  13          {
  14   1              uint d;
  15   1              for(d=0;d<c;d++);
  16   1      }
  17          
  18          
  19          /*void msec(uint a)     //延時１毫秒
  20          {
  21                  uint b,c;
  22                  for(b=0;b<a;b++)
  23                          for(c=0;c<425;c++);  
  24          } */
  25          
  26          
  27          main()
  28          { 
  29   1              //P1=P1&0x0d;            //無動作
  30   1              //P2=0;
  31   1         TMOD=(TMOD&0x0f)|0x20;  //初始化定時器，產生脈寬     NEED TO BE CHECKED
  32   1              TH1=56;
  33   1              TL1=TH1;
  34   1          ET1=1;
  35   1              TR1=1;
  36   1              EA=1;
  37   1      for(v=200;v<25000;v=v+500)
  38   1      {
  39   2          do
  40   2          {      
  41   3               P2_4=1;
  42   3               usec(v);
  43   3               P2_4=0;
  44   3               usec(t-v);
  45   3               count++;           
  46   3               } while(count<1000);
  47   2               count=0;
  48   2            
  49   2      }
  50   1      /*for(v=22000;v<500;v=v-500)
  51   1      {
  52   1          do
  53   1          {      
  54   1               P2_4=1;
  55   1               usec(v);
C51 COMPILER V7.50   MAIN                                                                  05/03/2005 21:25:33 PAGE 2   

  56   1               P2_4=0;
  57   1               usec(t-v);
  58   1               count++;           
  59   1               } while(count<1000);
  60   1               count=0;
  61   1            
  62   1      } */
  63   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    117    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      6    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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