Hi,
try enabling the interrupt by removing the two slashes at calling the
function __ARMLIB_enableIRQ()...
--- In lpc2000@yahoogroups.com, "federr65" <feder@...> wrote:
>
> I'm just starting with LPC ( I have a LPC-H2138 board from Olicom) and
> at the beginning I'm unable to solve the following problem:
> I have an Timer0 set to generate interrupts. Timer works just fine,
> but I can't force the ISR to execute.
> Below is my code:
>
> #include <targets/LPC213x.h>
>
> #define LED 0xF0000000;
>
> static int timer0Count, timer1Count;
> int marker=1;
>
>
> static void PLL_Init(void)
> {
> PLLCON=0x00000003; //Kwarc razy 4
> PLLCFG = 0x23;
> PLLFEED = 0xAA;
> PLLFEED = 0x55;
> }
>
> void inititate (void)
> {
> //PLL_Init();
> //MAMCR = 2;
> IO0PIN=0x0;
> IO1PIN=0x0;
> IO0DIR = 0xFFFFFFFF;
> IO1DIR = 0xFFFFFFFF;
> }
>
>
>
> static void timer0ISR(void) __attribute__ ((interrupt ("IRQ")));
>
> static void timer0ISR(void)
> {
> if (IO0PIN=0)
> {
> IO0SET=LED;
> }
> else
> {
> IO0CLR=0;
> }
> /* Clear the timer 0 interrupt */
> T0IR = 0xFF;
> /* Update VIC priorities */
> VICVectAddr = 0;
> marker++;
> }
>
>
> int main(void)
> {
> inititate();
>
> // Timer 0 interrupt is an IRQ interrupt, none is FIQ */
> VICIntSelect =0x0;
> /* Clear all IRQ and Enable timer 0 interrupt */
> VICIntEnClr = 0xFFFFFFFF;
> VICIntEnable = 0x10;
> /* Use slot 0 for timer 0 interrupt and enable it (bit5)*/
> VICVectCntl0 = 0x24;
> /* Set the address of ISR for slot 0 */
> VICVectAddr0 = (unsigned int)timer0ISR;
> /* Match 0 reset - mo¿e nie byæ konieczne do dzia³ania*/
> T0IR = 0x1;
> /* Reset and stop timer 0 */
> T0TCR = 0x2;
> /* Set the timer 0 prescale counter */
> T0PR = 0x0;
> /* Set timer 0 match register */
> /* Set timer 0 match register */
> T0MR0 = 0xffff;
> /* Generate interrupt and reset counter on match */
> T0MCR = 0x3;
> /* Start timer 0 */
> T0TCR = 1;
>
> /* Enable Interrupts */
> // __ARMLIB_enableIRQ();
>
>
> while(1);
> }
>Message
Re: Problem with entering ISR
2006-05-29 by willem_zx6r
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