dac0804.lst

8位DA转换程序

C51 COMPILER V7.06   DAC0804                                                               04/12/2009 15:01:30 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE DAC0804
OBJECT MODULE PLACED IN DAC0804.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE DAC0804.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          //flow light and beep 
   2          #include <reg51.h>
   3          #include <intrins.h>
   4          #define uint unsigned int
   5          #define uchar unsigned char
   6          sbit adrd=P3^7;                          //IO口定义
   7          sbit adwr=P3^6;
   8          sbit diola=P2^5;
   9          sbit dula=P2^6;
  10          sbit wela=P2^7;
  11          sbit csda=P3^5;
  12          
  13          
  14          sbit dawr=P3^6;
  15          
  16          unsigned char j,k;
  17          unsigned char a,b;
  18          
  19          sbit beep=P2^3;
  20          
  21          void dazhuanhuan();
  22          
  23          void delay10ms()
  24          {
  25   1          for(a=100;a>0;a--)
  26   1          for(b=225;b>0;b--);
  27   1      }
  28             //拧动AD旁边的电位器，会在数码管的前三位显示0-255之间的数值。这就是把模拟电压转换成数字信号。
  29          
  30          void delay(unsigned char i)             //延时程序
  31          {
  32   1        for(j=i;j>0;j--)
  33   1          for(k=125;k>0;k--);
  34   1      }
  35          
  36          void main()
  37          { 
  38   1              while(1)
  39   1              {
  40   2                      dazhuanhuan();
  41   2              }
  42   1      }
  43          
  44          void dazhuanhuan()
  45          {
  46   1        unsigned char a,k;
  47   1        wela=0;
  48   1        dula=0;
  49   1        csda=0;
  50   1        a=0;
  51   1        dawr=0;
  52   1        for(k=0;k<255;k++)
  53   1        {
  54   2                P0=a;
  55   2                delay(50);
C51 COMPILER V7.06   DAC0804                                                               04/12/2009 15:01:30 PAGE 2   

  56   2                a++;
  57   2        }
  58   1      }
  59          
  60          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     62    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      4    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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