C51 COMPILER V7.06   MAIN                                                                  06/02/2010 14:14:53 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE MAIN
OBJECT MODULE PLACED IN .\obj\main.obj
COMPILER INVOKED BY: d:\Keil\C51\BIN\C51.EXE main.c BROWSE DEBUG OBJECTEXTEND PRINT(.\obj\main.lst) OBJECT(.\obj\main.ob
                    -j)

stmt level    source

   1          /*-----------------------------------------------
   2            名稱：IIC協議 PCF8591 AD/DA轉換
   3            論壇：www.doflye.net
   4            編寫：shifang
   5            修改：無
   6            內容：使用4路AD中的1路檢測外部模擬量輸入
   7          ------------------------------------------------*/  
   8          #include <reg52.h>                
   9          #include "i2c.h"
  10          #include "delay.h"
  11          #include "display.h"
  12          
  13          #define AddWr 0x90   //寫數據地址 
  14          #define AddRd 0x91   //讀數據地址
  15          
  16          extern bit ack;
  17          unsigned char ReadADC(unsigned char Chl);
  18          bit WriteDAC(unsigned char dat);
  19          /*------------------------------------------------
  20                        主程序
  21          ------------------------------------------------*/
  22          main()
  23          {
  24   1       unsigned char num=0;
  25   1       Init_Timer0();
  26   1      
  27   1      
  28   1      while (1)         //主循環
  29   1        {
  30   2        
  31   2       num=ReadADC(0);
  32   2       TempData[0]=dofly_DuanMa[num/100];    
  33   2       TempData[1]=dofly_DuanMa[(num%100)/10];
  34   2       TempData[2]=dofly_DuanMa[(num%100)%10];
  35   2       //主循環中添加其他需要一直工作的程序
  36   2       DelayMs(100);
  37   2        }
  38   1      }
  39          /*------------------------------------------------
  40                       讀AD轉值程序
  41          輸入參數 Chl 表示需要轉換的通道，范圍從0-3
  42          返回值范圍0-255
  43          ------------------------------------------------*/
  44          unsigned char ReadADC(unsigned char Chl)
  45           {
  46   1         unsigned char Val;
  47   1         Start_I2c();               //啟動總線
  48   1         SendByte(AddWr);             //發送器件地址
  49   1           if(ack==0)return(0);
  50   1         SendByte(0x40|Chl);            //發送器件子地址
  51   1           if(ack==0)return(0);
  52   1         Start_I2c();
  53   1         SendByte(AddWr+1);
  54   1            if(ack==0)return(0);
C51 COMPILER V7.06   MAIN                                                                  06/02/2010 14:14:53 PAGE 2   

  55   1         Val=RcvByte();
  56   1         NoAck_I2c();                 //發送非應位
  57   1         Stop_I2c();                  //結束總線
  58   1        return(Val);
  59   1       }
  60          /*------------------------------------------------
  61                         寫入DA轉換數值
  62          輸入參數：dat 表示需要轉換的DA數值，范圍是0-255
  63          ------------------------------------------------*/
  64          /*bit WriteDAC(unsigned char dat)
  65          {
  66             Start_I2c();               //啟動總線
  67             SendByte(AddWr);             //發送器件地址
  68               if(ack==0)return(0);
  69             SendByte(0x40);            //發送器件子地址
  70               if(ack==0)return(0);
  71             SendByte(dat);             //發送數據
  72               if(ack==0)return(0);
  73             Stop_I2c();  
  74          }*/


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    116    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----       3
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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