fs20-1.lst

51单片机开发入门与典型实例

C51 COMPILER V7.06   FS20_1                                                                01/08/2007 15:35:51 PAGE 1   


C51 COMPILER V7.06, COMPILATION OF MODULE FS20_1
OBJECT MODULE PLACED IN fs20-1.OBJ
COMPILER INVOKED BY: C:\Keil7.06\C51\BIN\C51.EXE fs20-1.c BROWSE DEBUG OBJECTEXTEND

stmt level    source

   1          /* 文件名：fs20-1.c */
   2          /* 程序功能：发声实验 */
   3           #include<AT89X51.h>
   4           void delay250( unsigned int k );
   5           main( ) 
   6           {   
   7   1         for (;;)
   8   1         {
   9   2          while(P2_7==0)    
  10   2           {             
  11   3            P3_4=0;            
  12   3                delay250(2);
  13   3            P3_4=1;            
  14   3                delay250(2);
  15   3           }       
  16   2        }                                           
  17   1      }
  18            /*250μs×k */
  19           void delay250(unsigned int k) 
  20           {  
  21   1        unsigned int j,i;
  22   1       for(i=0;i<k;i++)
  23   1          {
  24   2           for(j=0;j<25;j++); 
  25   2          }
  26   1       } 


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     55    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =   ----    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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