interupt.c

来自「用ＫＥＩＬＣ写的单片机典型Ｃ５１编程」· C语言 代码 · 共 56 行

 #include<reg51.h>
 #define unchar unsigned char
 #define uint unsigned int
 sbit P1_0=P1^0;
 sbit P1_1=P1^1;
 sbit P1_2=P1^2;
 sbit P1_3=P1^3;
 sbit P1_4=P1^4;
 sbit P1_5=P1^5;
 sbit P1_6=P1^6;   
 
 void Led_On();

 void Led_Off();
 void Xint0(void);
 void Xint1(void);
  void main(void)
   { 
 	     P1= 0x00;                             //发光二极管熄灭
 	     EA= 1;
 	     EX0= 1;
 	     EX1= 1;
 	     IT0=0;
 	     IT1=0;
	for(;; )
 {;	}
 	 
 	}        

  void Xint0(void) interrupt 0 using 3
  { 
  	Led_On();
  }

  void Xint1(void) interrupt 2 using 3
  { 
  	Led_Off();	 
  }
   
  void Led_On()
  { 
  	P1=0xff;
   /* P1_0=1;
  	P1_1=1; 
  	P1_2=1;
  	P1_3=1;
  	P1_4=1;
  	P1_5=1;
  	P1_6=1;		*/
  }
  
  	void Led_Off()
  	{
  		P1=0x00;
  	}