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LPC1768 Interrupt on GPIO PORT 2

Hi all,
I'm trying to make an interrupt on one pin of the port 2. I found the registry setting, but I do not know the name of the interrupt function.

For an interrupt EXT1 the name of the function is "void ext1_int (void) __ irq". For an interrupt on port 2, how should I do?
Where I put my routine interruption?

Thank you for your help :)

Parents

0 Bernard de l'Escaille over 13 years ago in reply to HansBernhard Broeker

Hello,
I have make a test and I think i Have found the solution:

void init_interrupt_channel(void) {

        LPC_GPIO2->FIODIR &= ~(1<<5);                      /* EINT1 as input */
        LPC_GPIOINT->IO2IntEnF |= (1<<5);              /* Enable falling edge irq 2.11 */
        NVIC_EnableIRQ(EINT3_IRQn);             /* enable irq in nvic */

}

/*----------------------------------------------------------------------------
 *   External Interrupt PORT 2 Service Routine:  Digital Channel
 *---------------------------------------------------------------------------*/
void EINT3_IRQHandler (void) {

        LPC_GPIO2->FIOSET   = (1<<8);
        LPC_GPIOINT->IO2IntClr |= (1 << 5);    /* Clear pending interrupt */
}

this is fair?

Reply

0 Bernard de l'Escaille over 13 years ago in reply to HansBernhard Broeker

Hello,
I have make a test and I think i Have found the solution:

void init_interrupt_channel(void) {

        LPC_GPIO2->FIODIR &= ~(1<<5);                      /* EINT1 as input */
        LPC_GPIOINT->IO2IntEnF |= (1<<5);              /* Enable falling edge irq 2.11 */
        NVIC_EnableIRQ(EINT3_IRQn);             /* enable irq in nvic */

}

/*----------------------------------------------------------------------------
 *   External Interrupt PORT 2 Service Routine:  Digital Channel
 *---------------------------------------------------------------------------*/
void EINT3_IRQHandler (void) {

        LPC_GPIO2->FIOSET   = (1<<8);
        LPC_GPIOINT->IO2IntClr |= (1 << 5);    /* Clear pending interrupt */
}

this is fair?

Children

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