v.lst

电子时钟的单片机设计

C51 COMPILER V7.50   V                                                                     07/21/2007 16:03:31 PAGE 1   


C51 COMPILER V7.50, COMPILATION OF MODULE V
OBJECT MODULE PLACED IN v.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE v.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <REGX52.H>
   2          #include<absacc.H>
   3          unsigned code table[]={ 0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,
   4                                                          0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10};
   5          long int        n[4]={0},j;     
   6          double i=0.;
   7          unsigned int m;
   8          
   9          void main()
  10          {
  11   1              IT1=0;
  12   1              EX1=1;
  13   1              IT0=0;
  14   1              EX0=1;
  15   1              EA=1;
  16   1      //      PX1=1;
  17   1              for(;;);
  18   1      }
  19          void loop0()interrupt 2 using 0
  20          {
  21   1              P2=0x90;                        //P2.4接OE，置高，允许转换；P2.0、P2.1、P2.2接adc的地址a0、a1、a2，这里选择 IN0 
  22   1              P2=0x98;                        //P2.3接ALE     给一上升沿锁存地址；
  23   1              P2=0xb8;                        //p2.5接start，给一上升沿，使内部逐次逼近寄存器复位
  24   1              P2=0x98;                        //start下降沿，开始转换；
  25   1      }
  26                                                          //转换结束后，eoc触发外部中断0
  27          void loop()interrupt 0 using 0
  28          {
  29   1      
  30   1              m=P1;                           //读取转换结果
  31   1              i=m;
  32   1              i=(i*10000)/255;
  33   1              n[3]=((int)i)/10000;
  34   1              n[2]=((int)i%10000)/1000;
  35   1              n[1]=((int)i%1000)/100;
  36   1              n[0]=((int)i)%100/10;
  37   1              XBYTE[0xffec]=table[n[3]];              //输出显示
  38   1              XBYTE[0xffed]=table[n[2]+10];
  39   1              XBYTE[0xffee]=table[n[1]];
  40   1              XBYTE[0xffef]=table[n[0]];
  41   1              for(j=0;j<=255;j++);                    //显示延迟
  42   1              P2=0x10;                                                //p2.7接p3.3，触发外部中断1，开始下一轮转换
  43   1      }
  44          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    418    ----
   CONSTANT SIZE    =     40    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     26    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.

C51 COMPILER V7.50   V                                                                     07/21/2007 16:03:31 PAGE 2   


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