paomadeng.lst

用单片机控制的跑马灯程序。 定时器控制刷新的时间。

C51 COMPILER V7.20   PAOMADENG                                                             11/06/2007 23:16:20 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE PAOMADENG
OBJECT MODULE PLACED IN paomadeng.OBJ
COMPILER INVOKED BY: E:\Keil C\C51\BIN\C51.EXE paomadeng.c ROM(SMALL) BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <regx51.h>
   2          #define timercount 0xfc18
   3          int timer0_tick;
   4          unsigned char j;
   5          
   6          
   7          static void timer0_isr(void)interrupt TF0_VECTOR using 1
   8          {TR0=0;
   9   1       TL0=(timercount&0x00ff);
  10   1       TH0=(timercount>>8);
  11   1       TR0=1;
  12   1       timer0_tick++;
  13   1       if(timer0_tick==8000)
  14   1          { 
  15   2           timer0_tick=0;
  16   2               j=(j<<1)|1;
  17   2           if(j==0xff)
  18   2              j=0xfe;
  19   2                  P2=j;
  20   2           }
  21   1       }
  22          
  23           static void timer0_initialize(void)
  24           {EA=0;
  25   1        TR0=0;
  26   1        TL0=(timercount&0x00ff);
  27   1        TH0=(timercount>>8);
  28   1        timer0_tick=0;
  29   1        P2=0xff;
  30   1        PT0=0;
  31   1        ET0=1;
  32   1        TR0=1;
  33   1        EA=1;
  34   1        }
  35          
  36            void main(void)
  37            {timer0_initialize();
  38   1         while(1);
  39   1         }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     89    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      3    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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