GPIOTE input event is not called

RE: GPIOTE input event is not called

seunghun — Fri, 27 Sep 2024 02:34:11 GMT

Hello. Sigurd,

There was problem with Analog-front-End IC.

After replacing it with new one, I can get event from it.

Best regards,

Seunghun.

Sigurd — Wed, 25 Sep 2024 09:12:29 GMT

Hi!

I'm surprised that your gpio_event_handler() is not called. Did you check that the line actually goes from high to low on a logic analyzer / oscilloscope? We have a example that shows how this should work here: https://docs.nordicsemi.com/bundle/sdk_nrf5_v17.1.0/page/pin_change_int_example.html

seunghun — Wed, 25 Sep 2024 05:49:49 GMT

Hello Sigurd,

1. I edited codes as you guide. However there is no change from past.

2. I'm using custom board using nrf52840. I attached schematic of device.

Best regards,

Seunghun.

Sigurd — Tue, 24 Sep 2024 17:33:59 GMT

Hi!

1) Maybe you need pull-up on the line?

Snippet:

gpiote_cfg.pull = NRF_GPIO_PIN_PULLUP;

 err_code = nrf_drv_gpiote_in_init(20 , &gpiote_cfg, gpio_event_handler); // cs pin

2) If you are using DK, the pin you are using is default used for the external memory chip, and some solder brdige modifications are needed in order to use it for other things: https://docs.nordicsemi.com/bundle/ug_nrf52840_dk/page/UG/dk/hw_external_memory.html