Counting Square Wave Pulses on nRF5340 Using Zephyr and GPIOTE

RE: Counting Square Wave Pulses on nRF5340 Using Zephyr and GPIOTE

Stefano1984 — Fri, 30 May 2025 09:20:30 GMT

thank you, I will test it

RE: Counting Square Wave Pulses on nRF5340 Using Zephyr and GPIOTE

Priyanka — Tue, 27 May 2025 11:29:01 GMT

Hi,

I am not sure whether we have any direct links, but you could use the following as references and follow the same logic as mentioned earlier:

Timer in counter mode and PPI

https://medium.com/%40eivinds.erichsen/zephyr-encoder-driver-a07fd215252a

https://docs.zephyrproject.org/latest/samples/boards/nordic/nrfx/README.html

-Priyanka

RE: Counting Square Wave Pulses on nRF5340 Using Zephyr and GPIOTE

Stefano1984 — Fri, 16 May 2025 09:29:51 GMT

Hi and thanks for the reply,
I looked at the discussion but I noticed that many functions do not work because they need more parameters.
Do you have something more updated?

I use nRF Connect SDK v2.9.0
Thanks

RE: Counting Square Wave Pulses on nRF5340 Using Zephyr and GPIOTE

Priyanka — Thu, 15 May 2025 13:04:31 GMT

Hi,

That's right. You would need to use the GPIOTE module to generate events on rising edges, and it would be good to use the PPI to connect the generated GPIOTE events directly to the TIMER, so that with each rising edge the counter is incremented.

You can refer this discussion.

Regards,

Priyanka