isr.c

是一个可以快速实现的多功能六路抢答器 包括源代码和运行文件

//*******************************************************************//
//Interrupt Service Routine For C language
//*******************************************************************//
#include	"SPCE061A.H"
unsigned int g_uiIOA_LED=0xff,g_uiIOB_LED=0xff,g_uiClockCnt;
void Key2 (void);
unsigned int rand();
extern fuwei;
extern kaishi;

void BREAK(void) __attribute__ ((ISR));
void BREAK(void)
{
}
void FIQ(void) __attribute__ ((ISR));
void FIQ(void)
{
}
void IRQ0(void) __attribute__ ((ISR));
void IRQ0(void)
{
}
void IRQ1(void) __attribute__ ((ISR));
void IRQ1(void)
{
}
void IRQ2(void) __attribute__ ((ISR));
void IRQ2(void)
{
	
}
void IRQ3(void) __attribute__ ((ISR));
void IRQ3(void)
{
}
void IRQ4(void) __attribute__ ((ISR));
void IRQ4(void)
{
	unsigned int indate=0x0000;  //date是IOA高八位赋值？？？？？？？？？
    int i,Dig,j,count1,k=0,a,b,c,d,y;
    int n=0,date=0x0000;
    loopa:
    y=1;
    while(y)
	{
		LedDispDig(2,0);
        LedDispDig(1,2);
        LedDispDig(3,0);
        LedDispDig(4,0);
        kaishi=KeyScan1();
		if(kaishi==0x0001)
		{kaishi==0x0001;y=0;}
		else
		    kaishi==0x0000;
		
	}    
    if(kaishi==0x0001)
    {
    Key2 ();	
	//*P_INT_Ctrl=0x0010;
	i=rand()%10;
	if(*P_INT_Ctrl&C_IRQ4_1KHz)
	for(g_uiClockCnt=0;g_uiClockCnt<1024;g_uiClockCnt++)  
	{
		LedDispDig(2,0);
        LedDispDig(1,2);
	}
	for(Dig=1;Dig>=0;Dig--)
	  for(j=9;j>=0;j--)
	  	{
	  		for(a=9;a>=0;a--)
				  for(b=9;b>=0;b--)	  
				     for(c=9;c>=0;c--)  
				        for(g_uiClockCnt=0;g_uiClockCnt<2;g_uiClockCnt++)                                  //for(count1=0;count1<4000;count1++)
	   		 				{   		 	    
	   		 	       			LedDispDig(2,j);
				                LedDispDig(1,Dig);
				                LedDispDig(3,a);
				    		    LedDispDig(4,b);
				    		    
				    	
				 
				    		
			   if(Dig==0)
				{
					if(j<=i)
					{
						
						indate=KeyScan2();
						if(0x00ff&indate!=0)
        	               {
        	        	     k=1;
        	        	    goto loopb;
        	        	 
        	               }
					}
				}
			  if(Dig==0)
				    if(j==i&&a==0&&b==0&&c==0)
					{
					    Ledeng(7,0x00ff);
			        }
			}
		     
	  	}

	while(1)
	{
		
		LedDispDig(2,0);
        LedDispDig(1,0);
        LedDispDig(3,0);
        LedDispDig(4,0);
        fuwei=KeyScan1();
        if(fuwei==0x0002)
        	goto loopa;
        
	}
	
	loopb:while(k)
	{
		
        //LedDispDig(2,j);
		//LedDispDig(1,0);
		LedDispDig(3,i-j);
	    LedDispDig(4,a);
	    LedDispDig(5,b);
	    LedDispDig(6,c);
	    if(indate!=0)
    	{
    		if(indate==0x0080)
    	    {
    	      n=1;
    	      date =0x0001;
    	     
    	     
    	    }
    		if(indate==0x0040)
    	    {
    	      n=2;
    	      date =0x0002;
    	     
    	     
    	    }
    		
    	     if(indate==0x0020)
    	    {
    	      n=3;
    	      date =0x0004;
    	     
    	     
    	    }
    	    else if(indate==0x0010)
    	    {
    	      n=4;
    	      date =0x0008;
    	      
    	      
    	    }
    	    else if(indate==0x0008)
    	    {
    	      n=5;
    	      date =0x0010;
    	      
    	    }
    	    else if(indate==0x0004)
    	    {
    	      n=6;
    	      date =0x0020;
    	      
    	    }
    	    /*else if(indate==0x0002)
    	    {
    	      n=7;
    	      date =0x0040;
    	      
    	    }*/
    	    else if(indate==0x0001)
    	    {
    	      n=8;
    	      date =0x0080;
    	      
    	    }
    	   
    	 }
	    Ledeng(7,date);	    
	    LedDispDig(1,n);
	    fuwei=KeyScan1();
  		if(fuwei==0x0002)
        goto loopa;
	}
 }      
}
void IRQ5(void) __attribute__ ((ISR));
void IRQ5(void)
{
}
void IRQ6(void) __attribute__ ((ISR));
void IRQ6(void)
{
}
void IRQ7(void) __attribute__ ((ISR));
void IRQ7(void)
{
}