szz.lst

利用51单片机制作的电子时钟

C51 COMPILER V6.12  SZZ                                                                    04/09/2007 20:03:38 PAGE 1   


C51 COMPILER V6.12, COMPILATION OF MODULE SZZ
OBJECT MODULE PLACED IN .\szz.OBJ
COMPILER INVOKED BY: D:\Keil\C51\BIN\C51.EXE .\szz.c DEBUG OBJECTEXTEND

stmt level    source

   1          #include<reg51.h>
   2          #define uchar unsigned char 
   3          uchar j,k,i,a,A1,A2,A3,A4,A5,A6,second,min,hour;
   4          sbit key0=P1^0;
   5          sbit key1=P1^3;
   6          sbit key2=P1^6;
   7          bit L=0;//长溢出标志位
   8          uchar code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,
   9                                  0x80,0x90};//编码0~9
  10          uchar code select[]={0x01,0x02,0x04,0x08,0x10,0x20};//位选通
  11          uchar time[3];
  12          uchar con=0;
  13          uchar con1=0;
  14          uchar con2=0;
  15          void delay(uchar i)//延时
  16          {
  17   1        for(j=i;j>0;j--)
  18   1          for(k=125;k>0;k--);
  19   1      }
  20          void keyscan(void)//键盘扫描
  21          {EA=0;
  22   1       
  23   1         if(!key0)
  24   1           { delay(10);
  25   2           while(!key0);
  26   2           con++;TR0=0;ET0=0;     
  27   2          }
  28   1          if(con>=3)
  29   1          con=0;TR0=1;ET0=1;
  30   1         	if(con!=0)
  31   1      	 {if(!key1)
  32   2      	  {delay(10);
  33   3      	 while(!key1);
  34   3      	 {time[con]++;
  35   4      	  if(con==2)
  36   4            con1=24;else con1=60;
  37   4      	  if(time[con]>con1)
  38   4      	    {time[con]=0;}
  39   4            }
  40   3      	 }
  41   2      	 }
  42   1      	  if(con!=0)
  43   1            {if(!key2)
  44   2      	    {delay(10);
  45   3      	   while(!key2);
  46   3      	   {time[con]--;
  47   4      	    if(con==2)
  48   4      		con2=23;else con2=59;
  49   4      		if(time[con]<0)
  50   4      		{time[con]=con2;}
  51   4      	   }
  52   3      	  }
  53   2      	 }
  54   1        EA=1;
  55   1      }       
C51 COMPILER V6.12  SZZ                                                                    04/09/2007 20:03:38 PAGE 2   

  56          void display(uchar sh_c,uchar g_c,uchar sh_b,uchar g_b,uchar sh_a,uchar g_a)//显示部分
  57          {  P0=table[sh_c];
  58   1         P3=select[0];
  59   1         delay(5);
  60   1         P3=0;
  61   1        
  62   1         P0=table[g_c];
  63   1         P3=select[1]; 
  64   1         delay(5);
  65   1         P3=0;
  66   1           
  67   1         P0=table[sh_b];
  68   1         P3=select[2];
  69   1         delay(5);
  70   1         P3=0;
  71   1      
  72   1         P0=table[g_b];
  73   1         P3=select[3];
  74   1         delay(5);
  75   1         P3=0;
  76   1         
  77   1         P0=table[sh_a];
  78   1         P3=select[4];
  79   1         delay(5);
  80   1         P3=0;
  81   1      
  82   1         P0=table[g_a];
  83   1         P3=select[5];
  84   1         delay(5);
  85   1         P3=0;
  86   1      }
  87          
  88          void main()
  89            {TMOD=0x01;TH0=0x01;TL0=0x6b;
  90   1         TR0=1;
  91   1         ET0=1;
  92   1         EA=1;
  93   1         while(1)
  94   1             {keyscan();
  95   2      	    if(L)
  96   2              {
  97   3      		 L=0;
  98   3      		 time[0]++;
  99   3                if(time[0]==60)
 100   3                {time[0]=0;time[1]++;
 101   4                 {if(time[1]==60)
 102   5                  { time[1]=0;time[2]++;
 103   6      			 {if(time[2]==24)
 104   7      			  time[2]=0;
 105   7      			  }
 106   6      			}
 107   5                }
 108   4      		 }
 109   3      		 }
 110   2               A1=time[0]/10;
 111   2               A2=time[0]%10;
 112   2               A3=time[1]/10;
 113   2               A4=time[1]%10;
 114   2      		 A5=time[2]/10;
 115   2      		 A6=time[2]%10;
 116   2               { display(A1,A2,A3,A4,A5,A6);};
 117   2               }
C51 COMPILER V6.12  SZZ                                                                    04/09/2007 20:03:38 PAGE 3   

 118   1      
 119   1          }
 120           void t0(void) interrupt 1//1S延时
 121          { static uchar t;
 122   1        TF0=0;
 123   1        t++;
 124   1        if(t==15)
 125   1        {t=0;L=1;
 126   2        }
 127   1       }
 128            
 129            
 130          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    403    ----
   CONSTANT SIZE    =     16    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     20       6
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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