Lpc2000

Does anyone have a simple example including a startup.s file that I 
can compile in GCC that demonstrates how to use interrupts? I've 
looked at and have tried many examples. I can get the interrupt to 
fire once but never again. I think the interrupt isn't being reset 
correctly within the ISR. I'm usings the following ISR function. I 
can get the ISR to work correctly using the Imagecraft ARM compiler. 
Same LED.c file but different startup.s file. The Imagecraft compiler 
is doing something behind the scenes that allow the interrupts to 
work that I don't understand.

void TimerMatch( void ) __attribute__ ((interrupt ("IRQ")));
void TimerMatch( void )
    {
	p+=1;
	LED_OFF ;
	
    TIMER0_IR = 0x1;   // clr Timer interrupt
    VICVectAddr = 0xFF;

    }

Thanks!