ad max197.lst

At89s52单片机与max197的AD程序

C51 COMPILER V8.02   AD_MAX197                                                             04/27/2007 16:20:02 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE AD_MAX197
OBJECT MODULE PLACED IN AD Max197.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE AD Max197.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          
   2          #include "main.h"
   3          #include "reg52.h"
   4          #include "absacc.h"
   5          
   6          #define Ad_Channel XBYTE[0x0200]      //外部的地址
   7          sbit P3_0=P3^0;
   8          sbit P3_1=P3^1;
   9          
  10          
  11          /*************数据处理完成采集的数据的十六进制转换为十进制的形式*************/
  12          
  13          void Process_Data()
  14          {
  15   1          unsigned int Digit_Data;
  16   1              Digit_Data =((Channel_Msb&0x0f)<<8) + Channel_Lsb;
  17   1          Volatge_AD =(Digit_Data / 4096.0) *(2.5*2);
  18   1      }    
  19           
  20          
  21          
  22          /*************定时采集对197进行控制,向197的控制字寄存器中写入控制字,对外围电压信号进行采集*************/
  23          
  24          void Collection_Data()
  25          {  
  26   1         //if(136==Buffer_Key)
  27   1         Ad_Channel = 0x40;     //启动转换;197处于正常工作的内部时钟模式;通道0；输入的电压是0--5v
  28   1         /*
  29   1         if(132==Buffer_Key)    
  30   1         Ad_Channel = 0x41;     //                                                                       通道1
  31   1         if(130==Buffer_Key)
  32   1         Ad_Channel = 0x42;     //                                                                       通道2
  33   1         if(129==Buffer_Key)
  34   1         Ad_Channel = 0x43;     //                                                                       通道3
  35   1         if(72==Buffer_Key)
  36   1         Ad_Channel = 0x44;     //                                                                       通道4
  37   1         if(68==Buffer_Key)
  38   1         Ad_Channel = 0x45;     //                                                                       通道5
  39   1         if(66==Buffer_Key)
  40   1         Ad_Channel = 0x46;    //                                                                            通道6
  41   1         if(65==Buffer_Key)
  42   1         Ad_Channel = 0x47;    //                                                                            通道7 */
  43   1        
  44   1         while(P3_0!=0)  //查询是否转换完毕；如果没有转换完毕则P3_0是高电平；则P3_0是低电平为读出低位数据做准备
  45   1          {
  46   2              P3_1 = 0;
  47   2          }
  48   1          Channel_Lsb= Ad_Channel;    //P3_1是低电平；读出低位数据
  49   1          P3_1 = 1;                   //P3_1是高电平；读出高四位数据
  50   1          Channel_Msb= Ad_Channel;
  51   1          P3_1 = 0;                   //为下依次读出低位数据做准备
  52   1      }
  53          
  54          
  55          
C51 COMPILER V8.02   AD_MAX197                                                             04/27/2007 16:20:02 PAGE 2   

  56          
  57          
  58          
  59          
  60          
  61          
  62          
  63          
  64          
  65          
  66          
  67          
  68          
  69          
  70          
  71          
  72          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     77    ----
   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)