ad0809.lst

ADC0809并行AD转换器设计的的数字电压表程序

C51 COMPILER V8.02   AD0809                                                                08/30/2007 14:49:29 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE AD0809
OBJECT MODULE PLACED IN AD0809.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE AD0809.C BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <AT89X52.H> 
   2          unsigned char code dispbitcode[]={0xfe,0xfd,0xfb,0xf7, 
   3          0xef,0xdf,0xbf,0x7f}; 
   4          unsigned char code dispcode[]={0x3f,0x06,0x5b,0x4f,0x66, 
   5                                     0x6d,0x7d,0x07,0x7f,0x6f,0x00}; 
   6          unsigned char dispbuf[8]={10,10,10,10,1,10,10,10};
   7          
   8          unsigned char dispcount; 
   9          
  10          sbit ST=P3^0; 
  11          sbit OE=P3^1; 
  12          sbit EOC=P3^2; 
  13          unsigned char channel=0xbc; //1011 1100，ABC＝110选择第三通道同时使ST=0，OE=0输出数据线呈高阻状态，EOC=1。
  14          unsigned char getdata;   
  15          long int i;
  16          void main(void) 
  17          { 
  18   1        TMOD=0x01; 
  19   1        TH0=(65536-4000)/256; 
  20   1        TL0=(65536-4000)%256; 
  21   1        TR0=1; 
  22   1        ET0=1; 
  23   1        EA=1; 
  24   1        P3=channel; 
  25   1        
  26   1        while(1) 
  27   1          { 
  28   2            ST=0; 
  29   2            ST=1; 
  30   2            ST=0; 
  31   2            while(EOC==0); 
  32   2            OE=1; 
  33   2            getdata=P0; 
  34   2            OE=0; 
  35   2      i=getdata*196;
  36   2      dispbuf[5]=i/10000; 
  37   2      i=i%10000; 
  38   2      dispbuf[6]=i/1000;
  39   2      i=i%1000; 
  40   2      dispbuf[7]=i/100; 
  41   2          } 
  42   1      }   
  43          void t0(void) interrupt 1 using 0 
  44          { 
  45   1        TH0=(65536-6000)/256; 
  46   1        TL0=(65536-6000)%256; 
  47   1        P2=0xff;
  48   1        P1=dispcode[dispbuf[dispcount]]; 
  49   1        P2=dispbitcode[dispcount];
  50   1        if(dispcount==5) 
  51   1          { 
  52   2            P1=P1 | 0x80; 
  53   2          }  
  54   1        dispcount++; 
  55   1        if(dispcount==8) 
C51 COMPILER V8.02   AD0809                                                                08/30/2007 14:49:29 PAGE 2   

  56   1          { 
  57   2            dispcount=0; 
  58   2          } 
  59   1      } 


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    228    ----
   CONSTANT SIZE    =     19    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     15    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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