C51 COMPILER V8.02   8_23                                                                  08/24/2007 15:23:15 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE 8_23
OBJECT MODULE PLACED IN 8=23.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE 8=23.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<at89x52.h>
   2          #define uint unsigned int
   3          #define uchar unsigned char
   4          #define SPI_CLK P0_6
   5          #define SPI_DATA P3_1
   6          #define CS_DA P3_4
   7          uint n,m,j=0;
   8          
   9          /*********************************
  10          延時程序 延時xms
  11          ************************************/
  12          void delayms(unsigned char x)//////     延時xms
  13          { unsigned char y=123;
  14   1        unsigned char j;
  15   1        while(x--)
  16   1          {
  17   2            for(j=0;j<y;j++);
  18   2          }
  19   1      }
  20          
  21          /********************
  22           5615的驅動程序
  23          **********************/
  24          
  25          void da5615(uint da)
  26          {
  27   1      uchar i;
  28   1      da<<=6;
  29   1      
  30   1      CS_DA=0;
  31   1      SPI_CLK=0;
  32   1      
  33   1      for (i=0;i<12;i++)
  34   1      {
  35   2      SPI_DATA=(bit)(da&0x8000);
  36   2      SPI_CLK=1;
  37   2      da<<=1;
  38   2      SPI_CLK=0;
  39   2      }
  40   1      
  41   1      CS_DA=1;
  42   1      SPI_CLK=0;
  43   1      for (i=0;i<12;i++);
  44   1      } 
  45          /*************************
  46          主函數
  47          **********************/
  48          void main()
  49          {
  50   1      while(1)
  51   1      {
  52   2        for(n=0;n<20;n++)      //     20個方波
  53   2        {
  54   3         da5615(1);
  55   3         delayms(20);
C51 COMPILER V8.02   8_23                                                                  08/24/2007 15:23:15 PAGE 2   

  56   3         da5615(1000);  //2.48
  57   3         delayms(20);
  58   3         }
  59   2      
  60   2       for(n=0;n<20;n++)      // 20個三角波
  61   2       {
  62   3         while(j<1000)
  63   3         {
  64   4         da5615(j);
  65   4         j+=4;
  66   4         }
  67   3          while(j>1)
  68   3         {
  69   4         da5615(j);
  70   4         j-=4;
  71   4         }
  72   3       }
  73   2      
  74   2      
  75   2       }
  76   1      
  77   1      }
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C51 COMPILER V8.02   8_23                                                                  08/24/2007 15:23:15 PAGE 3   

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MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    201    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      6    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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