911.lst

蜂鸣器911报警(C语言)

C51 COMPILER V6.12  911                                                                    08/01/2007 11:28:44 PAGE 1   


C51 COMPILER V6.12, COMPILATION OF MODULE 911
OBJECT MODULE PLACED IN .\911.OBJ
COMPILER INVOKED BY: D:\keil\C51\BIN\C51.EXE .\911.C DEBUG OBJECTEXTEND

stmt level    source

   1          
   2                             
   3          #include <reg51.h>
   4          #include <intrins.h>
   5          
   6          sbit	SPK = P3^7;
   7          
   8          unsigned char frq; 
   9          
  10          void delayms(unsigned char ms);
  11          
  12          main()
  13          {
  14   1      	TMOD = 0x01;
  15   1      	frq = 0x00;
  16   1      	TH0 = 0x00;
  17   1      	TL0 = 0xff;	
  18   1      	TR0 = 1;
  19   1      	IE = 0x82;
  20   1      	
  21   1      	while(1)
  22   1      	{
  23   2      		frq++;
  24   2      		delayms(1);
  25   2      	}
  26   1      }
  27          
  28          void timer0() interrupt 1 using 1
  29          {
  30   1      	TH0 = 0xfe;
  31   1      	TL0 = frq;
  32   1      	SPK = ~SPK;	
  33   1      }
  34          
  35          void delayms(unsigned char ms)	
  36          // 延时子程序
  37          {						
  38   1      	unsigned char i;
  39   1      	while(ms--)
  40   1      	{
  41   2      		for(i = 0; i < 120; i++);
  42   2      	}
  43   1      }


MODULE INFORMATION:   STATIC OVERLAYABLE
   CODE SIZE        =     52    ----
   CONSTANT SIZE    =   ----    ----
   XDATA SIZE       =   ----    ----
   PDATA SIZE       =   ----    ----
   DATA SIZE        =      1    ----
   IDATA SIZE       =   ----    ----
   BIT SIZE         =   ----    ----
END OF MODULE INFORMATION.


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