cs21-4.lst

《手把手教你学单片机的C程序设计》及实验程序

C51 COMPILER V7.06   CS21_4                                                                02/18/2007 13:56:10 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE CS21_4
OBJECT MODULE PLACED IN CS21-4.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE CS21-4.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          #include <REG51.H>              
   2          #define uchar unsigned char
   3          #define uint unsigned int
   4          uchar code SEG7[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
   5          uchar code WEEK_SEG7[8]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x7f,};
   6          uchar ACT[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f}; 
   7          uchar  deda,sec,min,hour,week=1;
   8          uchar cnt;                                              
   9          /*****************************************************/
  10          void init(void)                                 
  11          {                                               
  12   1      TMOD=0x11;                              
  13   1      TH0=-(50000/256);                       
  14   1      TL0=-(50000%256);               
  15   1      ET0=1;                                  
  16   1      TR0=1;                                  
  17   1      TH1=-(1000/256);                        
  18   1      TL1=-(1000%256);                        
  19   1      ET1=1;                                  
  20   1      TR1=1;                                  
  21   1      EA=1;                                   
  22   1      }                                               
  23          /******************************************/
  24          void time0(void) interrupt 1            
  25          {                                               
  26   1      TH0=-(50000/256);                       
  27   1      TL0=-(50000%256);               
  28   1      deda++;                                 
  29   1      }                                               
  30          /*******************************************/
  31          void time1(void) interrupt 3    
  32          {                                               
  33   1      TH1=-(1000/256);                        
  34   1      TL1=-(1000%256);                        
  35   1      if(++cnt>7)cnt=0;                       
  36   1      switch (cnt)                            
  37   1      {                                               
  38   2      case 0:P0=SEG7[sec%10];P2=ACT[cnt];break;
  39   2      case 1:P0=SEG7[sec/10];P2=ACT[cnt];break;
  40   2      case 2:P0=SEG7[min%10];P2=ACT[cnt];break;
  41   2      case 3:P0=SEG7[min/10];P2=ACT[cnt];break;
  42   2      case 4:P0=SEG7[hour%10];P2=ACT[cnt];break;
  43   2      case 5:P0=SEG7[hour/10];P2=ACT[cnt];break;
  44   2      case 6:P0=0x00;P2=0xff;break;   
  45   2      case 7:P0=WEEK_SEG7[week];P2=ACT[cnt];break;
  46   2      default:break;                          
  47   2      }                                               
  48   1      }                                               
  49          /***************************************/
  50          void conv(void)                 
  51          {                                               
  52   1      if(deda>=20){deda=0;sec++;}
  53   1      if(sec>=60){sec=0;min++;}               
  54   1      if(min>=60){min=0;hour++;}      
  55   1      if(hour>=24){hour=0;week++;}    
C51 COMPILER V7.06   CS21_4                                                                02/18/2007 13:56:10 PAGE 2   

  56   1      if(week>7){week=1;}                     
  57   1      }                                               
  58          /*****************************************/
  59          void delay(uint k)                      
  60          {                                       
  61   1      uint data i,j;                  
  62   1      for(i=0;i<k;i++){               
  63   2      for(j=0;j<121;j++)              
  64   2      {;}}                                    
  65   1      }                                       
  66          /**********************************************/
  67          uchar scan_key(void)    
  68          {                                       
  69   1      uchar temp;
  70   1      P3=0xff;                        
  71   1      temp=P3;                                
  72   1      if(temp!=0xff)          
  73   1         {delay(20);          
  74   2          temp=P3;                    
  75   2              if(temp!=0xff)return temp;
  76   2          }                                   
  77   1      return 0;
  78   1      }
  79          /********************************************/
  80          void main(void)                 
  81          {uchar key_flag;                
  82   1              init();                         
  83   1              while(1)                        
  84   1              {                                       
  85   2              conv(); 
  86   2              key_flag=scan_key();                    
  87   2              switch(key_flag)                
  88   2                 {                                    
  89   3                 case 0xfb:if(++min>59)min=0;delay(300);break;
  90   3                 case 0xf7:if(++hour>23)hour=0;delay(300);break;
  91   3                 case 0xef:if(++week>7)week=1;delay(300);break;
  92   3                 default:break;       
  93   3                 }                                    
  94   2              }                                       
  95   1      }                                               
  96                                                                  


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    375    ----
   CONSTANT SIZE    =     18    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     14    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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