adc.lst

ADC0809是带有8位A/D转换器、8路多路开关以及微处理机兼容的控制逻辑的CMOS组件。它是逐次逼近式A/D转换器

C51 COMPILER V8.02   ADC                                                                   01/22/2008 20:37:51 PAGE 1   


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

line level    source

   1          #include <reg52.H> 
   2          
   3          unsigned char code dispbitcode[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f}; 
   4          
   5          unsigned char code dispcode[]={0x3f,0x06,0x5b,0x4f,0x66, 
   6          
   7                                     0x6d,0x7d,0x07,0x7f,0x6f,0x00}; 
   8          
   9          unsigned char dispbuf[8]={10,10,10,10,10,0,0,0}; 
  10          
  11          unsigned char dispcount; 
  12          
  13            
  14          
  15          sbit ST=P3^0; 
  16          
  17          sbit OE=P3^1; 
  18          
  19          sbit EOC=P3^2; 
  20          
  21          unsigned char channel=0xbc;//IN3 
  22          
  23          unsigned char getdata; 
  24          
  25            
  26          
  27          void main(void) 
  28          
  29          { 
  30   1      
  31   1        TMOD=0x01; 
  32   1      
  33   1        TH0=(65536-4000)/256; 
  34   1      
  35   1        TL0=(65536-4000)%256; 
  36   1      
  37   1        TR0=1; 
  38   1      
  39   1        ET0=1; 
  40   1      
  41   1        EA=1; 
  42   1      
  43   1        
  44   1      
  45   1        P3=channel; 
  46   1      
  47   1        
  48   1      
  49   1        while(1) 
  50   1      
  51   1          { 
  52   2      
  53   2            ST=0; 
  54   2      
  55   2            ST=1; 
C51 COMPILER V8.02   ADC                                                                   01/22/2008 20:37:51 PAGE 2   

  56   2      
  57   2            ST=0; 
  58   2      
  59   2            while(EOC==0); 
  60   2      
  61   2            OE=1; 
  62   2      
  63   2            getdata=P0; 
  64   2      
  65   2            OE=0; 
  66   2      
  67   2            dispbuf[2]=getdata/100; 
  68   2      
  69   2            getdata=getdata%10; 
  70   2      
  71   2            dispbuf[1]=getdata/10; 
  72   2      
  73   2            dispbuf[0]=getdata%10; 
  74   2      
  75   2          } 
  76   1      
  77   1      } 
  78          
  79            
  80          
  81          void t0(void) interrupt 1 using 0 
  82          
  83          { 
  84   1      
  85   1        TH0=(65536-4000)/256; 
  86   1      
  87   1        TL0=(65536-4000)%256; 
  88   1      
  89   1        P1=dispcode[dispbuf[dispcount]]; 
  90   1      
  91   1        P2=dispbitcode[dispcount]; 
  92   1      
  93   1        dispcount++; 
  94   1      
  95   1        if(dispcount==8) 
  96   1      
  97   1          { 
  98   2      
  99   2            dispcount=0; 
 100   2      
 101   2          } 
 102   1      
 103   1      } 


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    126    ----
   CONSTANT SIZE    =     19    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     11    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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