ad9851.lst

单片机控制FPGA的程序,包括AD转换,频率输出,测试程序

C51 COMPILER V8.02   AD9851                                                                08/26/2002 21:45:31 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE AD9851
OBJECT MODULE PLACED IN ad9851.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE ad9851.c LARGE BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include "includes.h"
   2          
   3          void delay(unsigned int t_i)
   4          {
   5   1        unsigned int i;
   6   1        for(i = t_i; i > 0; i--);
   7   1      
   8   1      }
   9          void ad9851_init(void)
  10          {
  11   1        RESET = 0;
  12   1        W_CLK = 0;
  13   1        FQ_UD = 0;
  14   1        RESET = 1;     //9851复位
  15   1        delay(delay_con);
  16   1        RESET = 0;   
  17   1        delay(delay_con);
  18   1      
  19   1        W_CLK = 0;     //改变为串行数据传输模式
  20   1        delay(delay_con);
  21   1        W_CLK = 1;
  22   1        delay(delay_con);
  23   1        W_CLK = 0;
  24   1        delay(delay_con);
  25   1        FQ_UD = 1;
  26   1        delay(delay_con);
  27   1        FQ_UD = 0;
  28   1      
  29   1      }
  30          
  31          void ad9851_send(unsigned char* ptr_data)
  32          {
  33   1        unsigned char i,j;
  34   1        unsigned char temp;
  35   1        FQ_UD = 0;
  36   1        for(i = 0; i < 5; i++)
  37   1        {
  38   2          temp = *(ptr_data + i);
  39   2          for(j = 0; j < 8; j++)
  40   2              { 
  41   3                D7 = (temp>>j) & 0x01;
  42   3            W_CLK = 1;
  43   3                delay(delay_con);
  44   3                W_CLK = 0;
  45   3                delay(delay_con);
  46   3              }
  47   2        }
  48   1        FQ_UD = 1;
  49   1        delay(delay_con);
  50   1        FQ_UD = 0;
  51   1      }
  52          void ad9851_calfreq(double freq/*单位是MHz*/,float phase_data/*单位是度，应为11。25度的整数倍*/, unsigned 
             -char* ptr_data)
  53          {
  54   1        unsigned char i;
C51 COMPILER V8.02   AD9851                                                                08/26/2002 21:45:31 PAGE 2   

  55   1        unsigned char temp_phase;
  56   1        unsigned long temp_fdata;
  57   1        temp_fdata =  (freq / STEP_OSC) * 1000000;
  58   1        for(i = 0; i <4; i++)
  59   1          *(ptr_data + i) = (temp_fdata >> (8 * i)) & 0xff;
  60   1      
  61   1      
  62   1        temp_phase = (unsigned char)(phase_data /11.25);
  63   1        *(ptr_data + 4) = ((temp_phase << 3) & 0xf8);  //如果采用掉电模式，再或上PWR_DOWN,如果采用6*osc则或上MUL
             -T6
  64   1      
  65   1      }
  66          
  67          
  68          
*** WARNING C316 IN LINE 68 OF ad9851.c: unterminated conditionals


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    294    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----      20
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


C51 COMPILATION COMPLETE.  1 WARNING(S),  0 ERROR(S)