Interrupt on LPC812

theodorosveryki — Tue, 08 Aug 2017 10:17:18 GMT

Hi,

A few months ago, I used to set an interrupt on pin 0.13 with the following code:

LPC_SYSCON->PINTSEL[0] = (uint32_t) 0;
GPIOSetDir(0, 13, 0);
LPC_PIN_INT->ISEL &= ~((1 << 13) | (~0xff));
LPC_PIN_INT->SIENF = 1;
NVIC_EnableIRQ(PININT0_IRQn);

and even though I have not changed any parts of the code since then, I find it impossible to enter the ISR even though a breakpoint is placed inside the routine.

Could you please let me know whether I am missing something in this case?

Re: Interrupt on LPC812

kerryzhou — Wed, 09 Aug 2017 06:01:37 GMT

Hello Theodoros Verykios,

I have attached a project, which already contains the pio0_13 pin interrupt.

I find your code:

LPC_SYSCON->PINTSEL[0] = (uint32_t) 0;

It should be:

LPC_SYSCON->PINTSEL[0] = (uint32_t) 13;

More details, please check my attached code.

Wish it helps you!

If you still have question, after you check it, please let me know!

Have a great day,
Kerry

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Interrupt on LPC812

Re: Interrupt on LPC812