Issues with gpiote interrupt

RE: Issues with gpiote interrupt

dkj047 — Fri, 13 Mar 2020 13:40:21 GMT

I had added nrfx_gpoite.c file in my project but i guess it was not getting compiled for some reason, thus the gpiote handler was missing, causing the interrupt to not work. When i compiled the nrfx_gpiote.c file the interrupt started working.

RE: Issues with gpiote interrupt

dkj047 — Tue, 10 Mar 2020 12:48:24 GMT

Just wanted to add pin_change_int example in the sdk SDK\nRF5_SDK_15.2.0_9412b96\examples\peripheral\pin_change_int is a good example for anybody to see how to implement interrupt.

RE: Issues with gpiote interrupt

dkj047 — Tue, 10 Mar 2020 12:45:24 GMT

Yes it worked for me too with original ble_app_mtu_throughput example. There might be some issues with my code although by comparing i am not able to figure out what was the issue. For now I will continue with my work but when i'll have time, I'll update what was the issue with my original code.

Thanks Vidar for time and patience.

RE: Issues with gpiote interrupt

Vidar Berg — Tue, 10 Mar 2020 12:21:19 GMT

I meant to ask if the nrfx_gpiote_irq_handler() implementation was greyed out. Anyway, I added your code to the original throughput example in SDK 15.2.0 and it worked for me with the default sdk_config settings. Could you try to compare the project against yours?

Example including the gpiote code you posted:

devzone.nordicsemi.com/.../ble_5F00_app_5F00_att_5F00_mtu_5F00_throughput.zip

RE: Issues with gpiote interrupt

dkj047 — Mon, 09 Mar 2020 10:11:58 GMT

In sdk_config.h GPIOTE_ENABLED is set 1 but the grey line appearing in above image is not shown for me. It is not stopping in nrfx_gpiote_irq_handler() when i try to pause code in debug mode.

RE: Issues with gpiote interrupt

Vidar Berg — Mon, 09 Mar 2020 08:15:00 GMT

IRQ #6 belongs to the GPIOTE so it looks like the GPIOTE handler has not been defined. Is 'GPIOTE_ENABLED' enabled in sdk_config.h and does nrfx_gpiote.c::nrfx_gpiote_irq_handler() appear greyed out in SES?

RE: Issues with gpiote interrupt

dkj047 — Sat, 07 Mar 2020 06:29:55 GMT

IRQ no. INTISR[6]

RE: Issues with gpiote interrupt

Vidar Berg — Fri, 06 Mar 2020 14:31:09 GMT

Hi,

Please try to read out the current ISR number from xpsr register when the program has ended up inside the Dummy handler. This will tell us what the interrupt source is. I included the screenshot below to illustrate what I mean. In this case, the IRQ number is 17, which if you look up in the nrf52840.h corresponds to RTC1_IRQn.

[quote user=""]We are not using any timer module for now but we might use this in future. So also wanted to know do we need to set different priority for gpiote interrupt and timer interrupt or is it not required. [/quote]

You can use the same priority for both. It is probably safer too. Note that all SDK modules use priority '6' by default.

[quote user=""]How many gpiote channel can be used at once?[/quote]

It has 8 channels. So 8 channels.