measure_freq.lst

51系列单片机实验课程：按键显示程序 （在数字键上按数字

C51 COMPILER V7.06   MEASURE_FREQ                                                          11/28/2007 15:04:20 PAGE 1   


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

stmt level    source

   1          #include <AT89x52.h>
   2          
   3          code unsigned char LedCode[] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};
   4          code unsigned char LedPosit[] = {0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01};
   5          unsigned int freq;
   6          unsigned char timeloop;
   7          
   8          void delay (unsigned int Dat)
   9          {
  10   1              unsigned int i;
  11   1              for(i=0;i<Dat;i++);
  12   1      }
  13          
  14          void SegLock (void)
  15          {
  16   1              P1_3 = 1;
  17   1              P1_3 = 0;
  18   1      }
  19          
  20          void PositLock (void)
  21          {
  22   1              P1_2 = 1;
  23   1              P1_2 = 0;
  24   1      }
  25          
  26          void nodisp (void)
  27          {
  28   1              P0 = 0;
  29   1              P1_2 = 1;
  30   1              P1_2 = 0;
  31   1      }
  32          
  33          void Display (void)
  34          {
  35   1              P0 = LedCode[freq/100];
  36   1              SegLock();
  37   1              P0 = LedPosit[5];
  38   1              PositLock();
  39   1              delay(200);
  40   1              nodisp();
  41   1              
  42   1              P0 = LedCode[(freq%100)/10];
  43   1              SegLock();
  44   1              P0 = LedPosit[6];
  45   1              PositLock();
  46   1              delay(200);
  47   1              nodisp();
  48   1              
  49   1              P0 = LedCode[freq%10];
  50   1              SegLock();
  51   1              P0 = LedPosit[7];
  52   1              PositLock();
  53   1              delay(200);
  54   1              nodisp();
  55   1      }
C51 COMPILER V7.06   MEASURE_FREQ                                                          11/28/2007 15:04:20 PAGE 2   

  56          
  57          void main (void)
  58          {
  59   1              EA = 0;
  60   1              TMOD = 0x15;
  61   1              TL0=TH0 = 0;
  62   1              TL1 = 0x3c;
  63   1              TH1 = 0xb0;
  64   1              TR0 = 1;
  65   1              TR1 = 1;
  66   1              ET1 = 1;
  67   1              EA = 1;
  68   1              while (1)
  69   1                      Display();
  70   1      }
  71          
  72          void T1_int (void) interrupt 3
  73          {
  74   1              TR0 = 0;
  75   1              TR1 = 0;
  76   1              TH1 = 0x3c;
  77   1              TL1 = 0xb0;
  78   1              if (++timeloop == 20)
  79   1              {
  80   2                      freq = TH0*256 + TL0;
  81   2                      timeloop = 0;
  82   2                      TH0 = 0;
  83   2                      TL0 = 0;
  84   2              }
  85   1              TR0 = 1;
  86   1              TR1 = 1;
  87   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    251    ----
   CONSTANT SIZE    =     18    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      3    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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