C51 COMPILER V8.02   DAOJISHI                                                              06/21/2010 13:04:34 PAGE 1   


C51 COMPILER V8.02, COMPILATION OF MODULE DAOJISHI
OBJECT MODULE PLACED IN daojishi.OBJ
COMPILER INVOKED BY: D:\处理软件\keil\C51\BIN\C51.EXE daojishi.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include<reg51.h>
   2          
   3          sbit dula=P2^6;
   4          sbit wela=P2^7;
   5          sbit beep=P2^3;
   6          unsigned char j,k,a1,a0,s=60;
   7          unsigned int m;
   8          unsigned char code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,
   9                                  0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
  10          
  11          void delay(unsigned char i)
  12          {
  13   1        for(j=i;j>0;j--)
  14   1          for(k=125;k>0;k--);
  15   1      }
  16          void display(unsigned char sh_c,unsigned char g_c)
  17          {
  18   1         dula=0;
  19   1         P0=table[sh_c];
  20   1         dula=1;
  21   1         dula=0;
  22   1         
  23   1         wela=0;
  24   1         P0=0xfe;
  25   1         wela=1;
  26   1         wela=0;
  27   1         delay(5);
  28   1         
  29   1         P0=table[g_c];
  30   1         dula=1;
  31   1         dula=0;
  32   1         
  33   1         P0=0xfd;
  34   1         wela=1;
  35   1         wela=0;
  36   1         delay(5);
  37   1      }
  38          
  39          void main()
  40          {
  41   1              TMOD=0x01;
  42   1              TR0=1;
  43   1              TH0=(65536-46080)/256;// 由于晶振为11.0592,故所记次数应为46080，计时器每隔50000微秒发起一次中断。
  44   1              TL0=(65536-46080)%256;//46080的来历，为50000*11.0592/12
  45   1              ET0=1;
  46   1              EA=1;
  47   1              while(1)
  48   1              {
  49   2                      if(m==20)
  50   2                      {       m=0;
  51   3                              s--;
  52   3                      }
  53   2                      a0=s%10;
  54   2                      a1=s/10;
  55   2                      display(a1,a0);
C51 COMPILER V8.02   DAOJISHI                                                              06/21/2010 13:04:34 PAGE 2   

  56   2                      if(s==0)
  57   2                      {
  58   3                              TR0=0;//时间到，定时器关闭
  59   3                              beep=0;//蜂鸣器响，报时。
  60   3                      }       
  61   2              }
  62   1      }
  63          
  64          void time0() interrupt 1
  65          {TH0=(65536-46080)/256;
  66   1              TL0=(65536-46080)%256;
  67   1              m++;
  68   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    148    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      7    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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