clock.lst

可调电子时钟：时、分、秒 P3^3：调时按钮 P3^4：调分按钮 P3^5：开始按钮

C51 COMPILER V7.06   CLOCK                                                                 03/23/2007 21:46:16 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE CLOCK
OBJECT MODULE PLACED IN clock.OBJ
COMPILER INVOKED BY: D:\Program Files\Keil\C51\BIN\C51.EXE clock.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /*    名称： 时钟
   2                作者： 詹松彬
   3                    创建时间：07-2-19
   4          */
   5            
   6          #include "reg51.h"
   7          #include "math.h"
   8          
   9          #define uchar unsigned char
  10          #define uint unsigned int
  11          //                     0    1    2    3    4    5    6    7    8    9
  12          uchar code Dispnum[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
  13          //                   个位 十位 百位 千位
  14          uchar code numwei[]={0xf7,0xfb,0xfd,0xfe};//显示的位数
  15          sbit hourbutton=P3^3;//调时按钮
  16          sbit minbutton=P3^4;//调分按钮
  17          sbit bebutton=P3^5;//开始按钮
  18          sbit point=P0^7;
  19          bit secmark=0;
  20          uchar DispBuf[4];
  21          uchar sec=0,min=0,hour=0x0c;
  22          
  23          void mDelay(uint Delay)       //毫秒延时
  24          {
  25   1              uint i;
  26   1              for(;Delay>0;Delay--)
  27   1              {
  28   2                      for(i=0;i<124;i++)
  29   2                      {;}
  30   2              }
  31   1      }
  32          
  33          void Timer0() interrupt 1              //定时器0中断
  34          {
  35   1          static uint num=0;
  36   1              num++;
  37   1              if(num>3600)         //1s时间到
  38   1              {
  39   2                      num=0;
  40   2                      sec++;
  41   2                      secmark=~secmark;
  42   2                      if(sec>59)//秒溢出
  43   2                      {
  44   3                              min++;
  45   3                          sec=0;
  46   3                              if(min>59)//分溢出
  47   3                              {
  48   4                                      hour++;
  49   4                              min=0;
  50   4                                      if(hour>23)//时溢出
  51   4                                              hour=0;
  52   4                              }
  53   3                      }
  54   2              }
  55   1      }
C51 COMPILER V7.06   CLOCK                                                                 03/23/2007 21:46:16 PAGE 2   

  56          
  57          void Init()         //初始化定时器0
  58          {
  59   1              TMOD=0x02;
  60   1              TH0=0;
  61   1              TL0=0;
  62   1              ET0=1;
  63   1              EA=1;
  64   1          TR0=1;
  65   1      }
  66          
  67          void InitBuf()
  68          {
  69   1                      DispBuf[0]=min%10;
  70   1                      DispBuf[1]=min/10;
  71   1                      DispBuf[2]=hour%10;
  72   1                      DispBuf[3]=hour/10;
  73   1      }
  74          
  75          void main()
  76          {
  77   1          static uchar wei;
  78   1              while(1)
  79   1              {
  80   2                      InitBuf();
  81   2                      P2=0xff;
  82   2                      P0=Dispnum[DispBuf[wei]];
  83   2                      if(wei==2)
  84   2                          point=0;
  85   2                      P2=numwei[wei];
  86   2                      wei++;
  87   2                      if(wei>3)
  88   2                              wei=0;
  89   2                      if(hourbutton==0)
  90   2                      {
  91   3                              mDelay(200);
  92   3                              hour++;
  93   3                              if(hour>23)
  94   3                                      hour=0;
  95   3                              continue;
  96   3                      }
  97   2                      if(minbutton==0)
  98   2                      {
  99   3                              mDelay(200);
 100   3                              min++;
 101   3                  if(min>59)
 102   3                                      min=0;
 103   3                              continue;
 104   3                      }
 105   2                      if(bebutton==0)
 106   2                              break;
 107   2              }
 108   1              Init();
 109   1              while(1)
 110   1              {
 111   2              InitBuf();
 112   2                      P2=0xff;                
 113   2                      P0=Dispnum[DispBuf[wei]];
 114   2                      if(secmark==1&&wei==2)
 115   2                          point=0;
 116   2                      P2=numwei[wei];
 117   2                      wei++;
C51 COMPILER V7.06   CLOCK                                                                 03/23/2007 21:46:16 PAGE 3   

 118   2                      if(wei>3)
 119   2                              wei=0;
 120   2              }
 121   1      }
 122          
 123          
 124          
 125          


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    300    ----
   CONSTANT SIZE    =     14    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     10    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =      1    ----
END OF MODULE INFORMATION.


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