water_test.lst

ti的12位AD采集c实现

C51 COMPILER V7.06   WATER_TEST                                                            11/27/2005 14:53:41 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE WATER_TEST
OBJECT MODULE PLACED IN water_test.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE water_test.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg52.h>
   2          #include "adc.h"
   3          #include<INTRINS.H>
   4          #include <stdio.h>
   5          #define uchar unsigned char
   6          #define uint unsigned int
   7          #define ushort unsigned short
   8          
   9          sbit EOC = P1^3;
  10          sbit CLK = P1^4;
  11          sbit DIN = P1^5;
  12          sbit DOUT = P1^6;
  13          sbit CS = P1^7;
  14          
  15          
  16          sbit P10 = P1^0;
  17          sbit P11 = P1^1;
  18          
  19          
  20          float idata voltage;
  21          void adc_init(void);
  22          float adc_voltage(int channel);
  23          float adc_value(int channel);
  24          
  25          void adc_init(void)
  26          {
  27   1              CS = 1;
  28   1              CLK = 0;
  29   1      }
  30          
  31          float adc_voltage(int channel)
  32          {
  33   1              float r;
  34   1              switch(channel)
  35   1                      {
  36   2                      case 1:r = adc_value(channel); r = r;return r;          
  37   2                      case 0:r = adc_value(channel); r = r;return r;          
  38   2                      default:return 0;
  39   2                      }
  40   1      }
  41          
  42          float adc_value(int channel)
  43          {
  44   1              int i;
  45   1              uchar d;
  46   1              ushort r;
  47   1      
  48   1              d = (((unsigned char)channel)<<4)+0x02;
  49   1              CS = 0;
  50   1              for(i=0;i<12;i++)
  51   1                      {
  52   2                      if(i<8)
  53   2                              {
  54   3                              if( d&(1<<(7-i))) DIN = 1;else DIN=0;
  55   3                              }
C51 COMPILER V7.06   WATER_TEST                                                            11/27/2005 14:53:41 PAGE 2   

  56   2                      else
  57   2                              DIN = 0;
  58   2                      CLK = 1;
  59   2                      CLK = 0;
  60   2                      }
  61   1              DIN = 0;
  62   1              while(EOC==0);
  63   1      
  64   1              r = 0;
  65   1              for(i=0;i<12;i++)
  66   1                      {
  67   2                      CLK = 1;
  68   2                      if(DOUT)r|=(1<<i);
  69   2                      CLK = 0;
  70   2                      }
  71   1              CS = 1;
  72   1              return (float)r*5/4095.0;
  73   1      }
  74          
  75          
  76          
  77          void main(void)
  78          {
  79   1              
  80   1              adc_init(); 
  81   1              while(1)
  82   1              {
  83   2              voltage=adc_voltage(0);
  84   2                       
  85   2              }
  86   1              
  87   1      }
  88          
  89          
  90          
  91          
  92          
  93          
  94          
  95          
  96          
  97          
  98          
  99          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    221    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       6
   IDATA SIZE       =      4    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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