ARM 7, Keil und Interrupt

[Steeve81]

Hallo!

Ich versuche auf einem ARM7 Intterupts zu benutzen. Der Timer läuft richtig, nur Interrupts bekomme ich noch nicht... Welche Register hab ich vergessen?

Danke schon einmal!

#include <LPC21xx.H>
// olimex LPC-P2129: LEDs on P0.12/P0.13 (active low)
#define LED1PIN  	12
#define LED2PIN  	13

void T0IRQ (void) __irq;

unsigned short switcher = 0;

int main(void)
{

//INIT
	// define LED-Pins as outputs
	IODIR0 |= 1<<LED1PIN;
	// set Bits = LEDs off (active low) 
	IOSET0 = 1<<LED1PIN; 
	//Sets peripheral clock = system clock
	VPBDIV=0x01;
	//initialise timer 0
	T0TCR = 0x0;
	T0TC  = 0x0;
	T0PR  = 0x0;
	T0PC  = 0x0;
	T0MR0 = 0xFF;

	//Reset and interrupt on match
	T0MCR = 0x3;

	//TELL VIC WHAT TO DO!
	VICIntSelect = 0x0; //NO FIQs
	VICIntEnable = 0x4;  //TIMER 0 on board
	
	//Give the VIC the adress
	VICVectAddr0=(unsigned long) T0IRQ;

	//start the timer
	T0TCR=0x1;
	while(1){}
}




void T0IRQ (void) __irq
{
	//TOGGLE LED
	if(switcher) {
		IOSET0 = 0<<LED1PIN;
		switcher = 0;
	} else {
		switcher = 1;
		IOSET0 = 1<<LED1PIN;
	}
	

	//RESET NECCESSARY TIMER VALUES
	T0IR=0x1;
	
	//END ISR
	VICVectAddr=0xff;
}

[Steeve81]

Falls einer mal vor dem selben Problem steht:

Dieser Code funktioniert...

/************************************************************/
/* PROJECT NAME: INTERRUPTS	                                */
/* Project:      LPC2100                                    */
/* Engineer:     S. Stefanowitsch                           */
/* Filename:     main.c                                     */
/* Language:     C                      	                */
/* Compiler:     Keil ARM	V2.00b		                    */
/* Assembler:    				                            */
/*                                                          */
/************************************************************/

#include <LPC21xx.H>
// olimex LPC-P2129: LED on P0.12 (active low)
#define LED1PIN  	12

void T0IRQ (void) __irq;
unsigned short switcher = 0;

int main(void)
{
//INIT
	// define LED-Pins as outputs
	IODIR0 |= 1<<LED1PIN;
	// set Bits = LEDs off (active low) 
	IOSET0 = 1<<LED1PIN; 
	//Sets peripheral clock = system clock
	VPBDIV=0x01;
	//initialise timer 0
	T0TCR = 0x0;
	T0TC  = 0x0;
	T0PR  = 0x0;
	T0PC  = 0x0;
	T0MR0 = 0x1FF;

	//Reset and interrupt on match
	T0MCR = 0x3;
	
	//INitialise the VIC
	VICVectAddr4 = (unsigned long) T0IRQ;
	VICVectCntl4= 0x24; //Allow This Vector, set is as IRQ Slot 4	
	VICIntSelect = 0x0; //NO FIQs
	VICIntEnable = 0x10;//TIMER 0 on board	
	//start the timer
	T0TCR=0x1;
	while(1){}
}


void T0IRQ (void) __irq
{
	//TOGGLE LED
	if(switcher) {
		IOSET0 = 1<<LED1PIN;
		switcher = 0;
	} else {
		IOCLR0 = 1<<LED1PIN;
		switcher = 1;
	}  
	//RESART TIMER
	T0IR=0x1;
	//END ISR "Pseudo Write Operation"
	VICVectAddr=0xff;
}