dac0832.lst

在单片机向实际系统发出控制信号时,需用数模转换芯片将数字信号转成模拟信号.这个程序和原理图详细说明了DA转换器的应用和开发.

C51 COMPILER V7.09   DAC0832                                                               08/24/2007 09:32:23 PAGE 1   


C51 COMPILER V7.09, COMPILATION OF MODULE DAC0832
OBJECT MODULE PLACED IN DAC0832.OBJ
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE DAC0832.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <reg51.h>
   2          #include "DAC0832.h"
   3          
   4          //短延时函数：ShortDelay()
   5          void nNop(uchar i)
   6          {
   7   1              for(;i>0;i--) ;
   8   1              }
   9                  
  10          //长延时函数：LongDelay()
  11          void LongDelay(uint i)
  12          {
  13   1              uint j;
  14   1              for(;i>0;i--)
  15   1                      { for(j=1000;j>0;j--);}
  16   1              }
  17                  
  18          //写输出数据函数：WriteData_DAC0832()
  19          void WriteData_DAC0832(int temp)
  20          {
  21   1              SetCS(1);
  22   1              nNop(1);
  23   1              SetCS(0);
  24   1              SetWR(1);
  25   1              PinData = temp;
  26   1              SetWR(0);
  27   1              nNop(5);
  28   1              SetWR(1);
  29   1              nNop(1);
  30   1              SetCS(1);       
  31   1              }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     74    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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