wave.lst

数据采集系统的好参考资料,高精度的传感器采集系统

C51 COMPILER V7.50   WAVE                                                                  09/13/2006 09:30:07 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE WAVE
OBJECT MODULE PLACED IN WAVE.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE WAVE.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg51.h>
   2          
   3          extern bit Ex0Flag;
   4          sbit WAV = P2^4;                                        //超声波控制端口
   5          void delay1(unsigned int t);
   6          //-------------------------------------------------------------------
   7          //函数：unsigned char Get_dis(void)
   8          //功能：检测物体的实际距离
   9          //-------------------------------------------------------------------
  10          unsigned char Get_dis(void)
  11          {
  12   1              unsigned long timer,distance;                                   //超声波检测距离
  13   1              TMOD=0x11;
  14   1              EA=1;ET0=1;
  15   1              if(Ex0Flag==0)
  16   1              {
  17   2                      TH0=0;TL0=0;TR0=1;
  18   2                      
  19   2                      WAV=1;                                                                          //发出声波
  20   2                      delay1(50);
  21   2                      WAV=0;
  22   2                                                              
  23   2                      EX0=1;
  24   2              }                                               
  25   1              else if(Ex0Flag==1)                                                             //接收返回的声波
  26   1              {                       
  27   2                      timer=TH0*256+TL0;
  28   2                      distance=timer*168/1000;
  29   2                      Ex0Flag=0; 
  30   2              }
  31   1              return(distance);
  32   1      }
  33          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     95    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       8
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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