numericaltube.lst

实现了数码管的拉幕式显示

C51 COMPILER V7.20   NUMERICALTUBE                                                         02/18/2009 02:28:07 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE NUMERICALTUBE
OBJECT MODULE PLACED IN NumericalTube.OBJ
COMPILER INVOKED BY: F:\Program Files\Keil\C51\BIN\C51.EXE NumericalTube.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <REG52.H>
   2          unsigned char code dispcode[]={0xC0,0xF9,0xA4,0xB0,//0-3
   3                                                                          0x99,0x92,0x82,0xF8,//4-7
   4                                                                          0x80,0x90,0x88,0x83,//8-B
   5                                                                          0xC6,0xA1,0x86,0x8E,0xff};
   6          unsigned char dispbitcode[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb};
   7          unsigned char dispbuf[6]={16,16,16,16,16,16};
   8          unsigned char dispbitcnt;
   9          unsigned int t02scnt;
  10          unsigned char t5mscnt;
  11          unsigned char u;
  12          unsigned char i;
  13          
  14          void main(void)
  15          {
  16   1        TMOD=0x02; //timer0 initial
  17   1        TH0=0x06;
  18   1        TL0=0x06;
  19   1        TR0=1; //timer0 starting
  20   1        ET0=1; //timer0 interrupt enable
  21   1        EA=1;  //interrupt enable
  22   1        while(1);
  23   1      }
  24          
  25          void t0(void) interrupt 1 using 0
  26          {
  27   1        t5mscnt++;
  28   1        if(t5mscnt==4)
  29   1          {
  30   2            t5mscnt=0;
  31   2            P0=dispcode[dispbuf[dispbitcnt]];//P0=0xff
  32   2            P2=dispbitcode[dispbitcnt];//led on low level//P2
  33   2            dispbitcnt++;
  34   2            if(dispbitcnt==6)
  35   2              {
  36   3                dispbitcnt=0;
  37   3              }
  38   2          }
  39   1        t02scnt++;
  40   1        if(t02scnt==1600)
  41   1          {
  42   2            t02scnt=0;
  43   2            u++;
  44   2            if(u==7)
  45   2              {
  46   3                u=0;
  47   3              }
  48   2            for(i=0;i<6;i++)
  49   2              {
  50   3                dispbuf[i]=16;
  51   3              }
  52   2            for(i=0;i<u;i++)
  53   2              {
  54   3                dispbuf[i]=i;
  55   3              }
C51 COMPILER V7.20   NUMERICALTUBE                                                         02/18/2009 02:28:07 PAGE 2   

  56   2          }
  57   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =    147    ----
   CONSTANT SIZE    =     17    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =     18    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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