ad9851.lst

89S51单片机并行驱动AD9851的程序

C51 COMPILER V7.50   AD9851                                                                05/24/2006 14:01:59 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE AD9851
OBJECT MODULE PLACED IN AD9851.OBJ
COMPILER INVOKED BY: e:\Keil\C51\BIN\C51.EXE AD9851.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #ifndef __AD9851_C__
   2          #define __AD9851_C__
   3          
   4          #include "regx51.h"
   5                                                    
   6          
   7          unsigned long f_freqword;
   8          unsigned char f_phaseword;
   9          
  10          
  11          #define RST_DDS P2_5
  12          #define CLK_DDS P2_7
  13          #define UPDATE  P2_6
  14          #define Data_DDS P0
  15          
  16          
  17          void InitDDSport()
  18          {
  19   1              RST_DDS = 1;
  20   1              RST_DDS = 0;
  21   1              Data_DDS = 0;
  22   1              CLK_DDS = 0;
  23   1              UPDATE = 1;
  24   1      }
  25          
  26          
  27          void SendData()
  28          {
  29   1              UPDATE=0;
  30   1      
  31   1              Data_DDS = f_phaseword;
  32   1              CLK_DDS=0;
  33   1              CLK_DDS=1;
  34   1      
  35   1              Data_DDS = f_freqword>>24;
  36   1              CLK_DDS = 0;
  37   1              CLK_DDS = 1;
  38   1              Data_DDS = (f_freqword>>16) & 0xFF;
  39   1              CLK_DDS = 0;
  40   1              CLK_DDS = 1;
  41   1              Data_DDS = (f_freqword>>8) & 0xFF;
  42   1              CLK_DDS = 0;
  43   1              CLK_DDS = 1;
  44   1              Data_DDS = f_freqword & 0xFF;
  45   1              CLK_DDS = 0;
  46   1              CLK_DDS = 1;
  47   1      
  48   1              UPDATE=1;
  49   1              UPDATE=0;
  50   1      }
  51          
  52          void SendFreq(double freq)
  53          {
  54   1              f_freqword=(unsigned long)freq*26.5121438;
  55   1              SendData();
C51 COMPILER V7.50   AD9851                                                                05/24/2006 14:01:59 PAGE 2   

  56   1      }
  57          
  58          void SendPhase(unsigned char phase)
  59          {
  60   1              f_phaseword = (phase<<3) | 1;
  61   1              SendData();
  62   1      }
  63          
  64          
  65          #endif


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    138    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      5    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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