How to implement interrupt using GPIO (not GPIOTE) peripheral

RE: How to implement interrupt using GPIO (not GPIOTE) peripheral

masterLee — Tue, 04 Jun 2019 06:31:26 GMT

Thank you for your help Sir. I think I got it. Both answers are equally good

RE: How to implement interrupt using GPIO (not GPIOTE) peripheral

ovrebekk — Mon, 03 Jun 2019 12:17:18 GMT

To get an interrupt for any pin with sense enabled you should use the Port event in the GPIOTE.

While this still requires the GPIOTE interrupt vector to be used, you don't have to dedicate a separate GPIOTE channel to each pin.

The catch is that you need to check the state of the pins in the interrupt vector, which is described in the port event section I linked to above.

Best regards
Torbjørn

RE: How to implement interrupt using GPIO (not GPIOTE) peripheral

masterLee — Thu, 30 May 2019 19:41:26 GMT

Hi, Thank you for the reply. Indeed it helps a lot but this is for gpiote peripheral not gpio.

I notice that most of the questions regarding basic implementation of interrupts refer to the pin_change_int where the gpiote is used but not tte gpio peripheral

I would like to learn if I can do the same thing with GPIO peripheral and how it is done and if not why..

I suspect that it can be done with detect signal and sense mechanism of the GPIO but I cannot understand how to combine an interrupt with that mechanism (if this is the way it can be done)

Thanks

RE: How to implement interrupt using GPIO (not GPIOTE) peripheral

Sunil519 — Thu, 30 May 2019 17:32:33 GMT

Hi,

I think this link might help you: https://devzone.nordicsemi.com/f/nordic-q-a/35945/nrf_drv_gpiote_in_event_enable