C51 COMPILER V7.06   AD9850_1                                                              05/12/2005 15:39:24 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE AD9850_1
OBJECT MODULE PLACED IN ad9850-1.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil20\C51\BIN\C51.EXE ad9850-1.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          //-----------------------函數聲明，變量定義--------------------------------------------------------
   2          #include <reg51.h>
   3          #include <intrins.h>
   4          #include<ABSACC.H>              
   5          //-----------------------定義管腳--------------------------------------------------------
   6          #define  data_OUT P1
   7          sbit FQ_UD=P3^0;          //AD9850信號更新申請 
   8          sbit W_CLK=P3^1;          //寫控制字時鐘
   9          unsigned char CON_word[5]; 
  10          //Word  data[7] data[6] data[5] data[4] data[3] data[2] data[1] data[0]
  11          //W0    Phase b         Phase b3        Phase b2        Phase b1        Phase b0        Power Down      Control     Control
  12          //W1    Freq-b31    Freq-b30    Freq-b29        Freq-b28        Freq-b27        Freq-b26        Freq-b25        Freq-b24
  13          //W2    Freq-b23        Freq-b22        Freq-b21        Freq-b20        Freq-b19        Freq-b18        Freq-b17        Freq-b16
  14          //W3    Freq-b15        Freq-b14        Freq-b13        Freq-b12        Freq-b11        Freq-b10        Freq-b9 Freq-b8
  15          //W4    Freq-b7     Freq-b6         Freq-b5         Freq-b4         Freq-b3         Freq-b2       
  16          //--------------------------------------------------------------------------------------------------
  17          // 函數名稱： delay
  18          // 入口參數： N
  19          // 函數功能：延時子程序，實現(16*N+24)us的延時 
  20          // 系統采用11.0592MHz的時鐘時,延時滿足要求,其它情況需要改動
  21          //--------------------------------------------------------------------------------------------------
  22            void delay(unsigned  int N)  
  23            {
  24   1        int i; 
  25   1        for(i=0;i<N;i++);
  26   1        }
  27          //--------------------------------------------------------------------------------------------------
  28          // 函數名稱： WRITE_AD9850
  29          // 函數功能： 將控制字寫入AD9850
  30          //--------------------------------------------------------------------------------------------------
  31          void WRITE_AD9850(void)
  32          {  
  33   1           unsigned char i;
  34   1           FQ_UD=0;
  35   1           W_CLK=0;
  36   1               delay(0);
  37   1               CON_word[0]=CON_word[0]&0xFC; //置工作方式選擇位為00
  38   1           for(i=0;i<5;i++)
  39   1           {
  40   2           data_OUT=CON_word[i];      //送控制字 
  41   2           W_CLK=0;
  42   2           delay(0);
  43   2           W_CLK=1;                   //上升延
  44   2           delay(0);
  45   2           }
  46   1           FQ_UD=1;               //上升延要求AD9850改變輸出
  47   1      } 
  48          //--------------------------------------------------------------------------------------------------
  49          // 函數名稱：main
  50          // 用戶主函數
  51          // 函數功能：主函數
  52          //--------------------------------------------------------------------------------------------------
  53          void main()
  54               {
  55   1               FQ_UD=0;
C51 COMPILER V7.06   AD9850_1                                                              05/12/2005 15:39:24 PAGE 2   

  56   1               WRITE_AD9850();
  57   1               }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     65    ----
   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)