cj.lst

ad7812采集程序10位的

C51 COMPILER V8.05a   CJ                                                                   09/04/2008 14:18:24 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE CJ
OBJECT MODULE PLACED IN cj.OBJ
COMPILER INVOKED BY: c:\Keil\C51\BIN\C51.EXE cj.c DEBUG OBJECTEXTEND

line level    source

   1            #include "at89x51.h"
   2            #include "intrins.h"   /*用NOP()      */
   3            #define tfs_rfs P1_0
   4            #define dout P1_1
   5             #define din P1_2
   6             #define sclk P1_3
   7             #define convst P1_4
   8            volatile unsigned int ad7812_res;
   9           void initad7812();
  10          void commad7812(unsigned int cmd);
  11            void start_ad();
  12          
  13              void delay(unsigned int t)
  14            {
  15   1        for(;t>0;t--);
  16   1        }
  17          
  18              void main()
  19            {     
  20   1        unsigned int ad_result;
  21   1        initad7812();
  22   1        delay(50);
  23   1        while(1)
  24   1        {
  25   2        start_ad();
  26   2         delay(100);
  27   2         commad7812(0x4040);
  28   2         ad_result=ad7812_res>>6;
  29   2        }
  30   1        }
  31          
  32             void initad7812()
  33          {
  34   1      convst=1;
  35   1      commad7812(0x6040);
  36   1      }
  37          
  38           void commad7812( unsigned int cmd)
  39           {
  40   1       unsigned char ip;
  41   1       unsigned int pbit;
  42   1       unsigned char tempres;
  43   1       ad7812_res=0;
  44   1       pbit=0x8000;
  45   1       tfs_rfs=0;
  46   1       _nop_();
  47   1       tfs_rfs=1;
  48   1       sclk=1;
  49   1       tfs_rfs=0;
  50   1       for(ip=0;ip<16;ip++)
  51   1       {
  52   2       ad7812_res<<=1;
  53   2       dout=1;
  54   2       din=(cmd & pbit)?1:0;
  55   2       _nop_();
C51 COMPILER V8.05a   CJ                                                                   09/04/2008 14:18:24 PAGE 2   

  56   2       _nop_();
  57   2       sclk=0;
  58   2       tempres=dout;
  59   2       ad7812_res+=tempres;
  60   2       _nop_();
  61   2       _nop_();
  62   2       sclk=1;
  63   2       pbit>>=1;
  64   2      
  65   2       }
  66   1       }      
  67          
  68            void start_ad()
  69           {
  70   1       convst=0;
  71   1       _nop_();
  72   1       convst=1;
  73   1       }
  74          
  75          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    163    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2       4
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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