超声波.lst

基于51单片机设计的实时测试距离的程序

C51 COMPILER V7.06   __声瞋                                                                10/27/2007 17:48:09 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE __声瞋
OBJECT MODULE PLACED IN 超声波.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 超声波.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          //T0用于计时  int0用于判断接收标志
   2          
   3          #include <at89x51.h>
   4          #define uchar  unsigned char
   5          #define fa P1_0
   6          
   7          #define speed 334
   8          
   9          unsigned short time;
  10          
  11          void maichong(uchar i)
  12          {
  13   1              uchar j=10;
  14   1              fa=0;
  15   1              TH0=0;
  16   1              TL0=0;
  17   1              TR0=1;
  18   1      
  19   1              while(i--)
  20   1              {
  21   2                      fa=1;
  22   2                      while(j--);
  23   2                      j=10;
  24   2                      fa=0;
  25   2                      while(j--);
  26   2                      j=10;
  27   2              }
  28   1      }
  29          
  30          
  31          void set ()
  32          {
  33   1              EA=0;
  34   1              IT0=1;
  35   1              TMOD=0X01;
  36   1              EX0=1;
  37   1              ET0=1;
  38   1              TR0=0;                  //停止计时 
  39   1              EA=1;   
  40   1      }
  41          
  42          
  43          
  44          
  45          
  46          void main()
  47          {
  48   1      
  49   1      }
  50          
  51          
  52          void shoudao()interrupt 0               //收到外中断0
  53          {
  54   1              TR0=0;
  55   1              time=(TH0<<8)+TL0;
C51 COMPILER V7.06   __声瞋                                                                10/27/2007 17:48:09 PAGE 2   

  56   1      
  57   1      }
  58          
  59          
  60          void jishi()interrupt 1
  61          {
  62   1      
  63   1      
  64   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    104    ----
   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)