ledscan.lst

利用51单片机实现4*4的键盘扫描程序 在多个51平台中验证通过

C51 COMPILER V8.05a   LEDSCAN                                                              09/17/2007 23:02:49 PAGE 1   


C51 COMPILER V8.05a, COMPILATION OF MODULE LEDSCAN
OBJECT MODULE PLACED IN ledscan.OBJ
COMPILER INVOKED BY: C:\Keil\C51\BIN\C51.EXE ledscan.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include "reg52.h"
   2          
   3          unsigned char   code led[]={0x3f,0x06,0x5b,0x4f};
   4          unsigned char  i=0; 
   5          unsigned char    code1;
   6          void initTimer(void)
   7          {
   8   1       TMOD=0x01;
   9   1       TH1=0x15;
  10   1       TL1=0xa0;
  11   1      }
  12          
  13          void timer0(void) interrupt 3
  14          { 
  15   1      
  16   1       TH1=0xee;
  17   1       TL1=0x3c;
  18   1       i++;
  19   1       if(i>4)
  20   1       {i=0;
  21   2       code1=0xfe;}
  22   1       P2=led[i];
  23   1       P1=code1;
  24   1       code1=code1<<1|0x01;
  25   1      
  26   1      }
  27          
  28          void main(void)
  29          {
  30   1      initTimer();
  31   1      EA=1;
  32   1      ET1=1;
  33   1      TR1=1;
  34   1      code1=0xfe;
  35   1      while(1);
  36   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     81    ----
   CONSTANT SIZE    =      4    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      2    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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