main.lst

幅频特性测试：主要用DDS芯片AD9851实现在5秒内完成步进为1KHZ的频率特性测试。

C51 COMPILER V8.02   MAIN                                                                  04/18/2009 22:02:43 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN main.OBJ
COMPILER INVOKED BY: E:\学习软件安装程序\Keil3\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<c8051f020.h>
   2          #include "initial.h"
   3          #define sysclk         22118400        // SYSCLK frequency in Hz 
   4                      
   5          xdata long uint value,value1;    
   6          xdata long uint i=0;               //DDS扫频计数值
   7          uchar stop0;
   8          
   9          uchar keynum;
  10                  
  11          sbit bwg = P3^5;
  12          sbit ad637 = P3^3;
  13          
  14          
  15          
  16          void main( )
  17          {     
  18   1              SYSTEM_Init();                            //系统初始化
  19   1              PORT_Init();                              //端口初始化
  20   1              delay(10);
  21   1              AD9851_Init(); 
  22   1              while(1)  
  23   1              {                                                               
  24   2                 keynum=KeyEn();
  25   2                 if(keynum==12)         //dds   C
  26   2                 {  
  27   3                        f_add();
  28   3                 }    
  29   2               
  30   2                
  31   2              } 
  32   1      }                        
  33          
  34          
  35          
  36          
  37          
  38          void f_add()
  39          {
  40   1      //            Lcd1602_Clear_All( );                
  41   1                    stop0=0;
  42   1              //        ad637=0;                
  43   1                    while(!stop0)
  44   1                        {      
  45   2                           for(i=0;i<3960;i++)
  46   2                               {   
  47   3                                   keynum=KeyEn(); //i=2;
  48   3                                   /*display_f(100*i+100); 
  49   3                                       AD9851_DDS_Control(100*i+100,0);*/
  50   3      //                               display_f(1000*i+400000); 
  51   3                                       AD9851_DDS_Control(1000*i+40000,0); 
  52   3                                       delay(500); //while(1);                
  53   3                                          if(bwg==0) 
  54   3                                          {
  55   4                                             stop0=1;
C51 COMPILER V8.02   MAIN                                                                  04/18/2009 22:02:43 PAGE 2   

  56   4                                                 break;
  57   4                                              }
  58   3                               } 
  59   2                        }
  60   1                               // Lcd1602_Write_String(1,12,"stop");  
  61   1      }
  62          
  63          
  64          
  65          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    176    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =     12    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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