Pin planner inconsistency to datasheet

RE: Pin planner inconsistency to datasheet

tesc — Wed, 11 Feb 2026 15:55:10 GMT

Hi,

Thanks for the update. He looked into the GPIOs and fixed that one yesterday, as well as will look into the LPCOMP and COMP. Thanks again, for sharing your findings!

Regards,
Terje

RE: Pin planner inconsistency to datasheet

Adam Broders — Tue, 10 Feb 2026 14:47:57 GMT

While you're already relaying information to Helmut, perhaps he can also look at GPIOTE as well? I believe this one is also supposed to support port 3, however we have not tested it on our side.

It would also be great if the comparators (LPCOMP and COMP) were added. I've set them up as GPIO's just to make sure I claim them, but it doesn't properly check usage of resources.

RE: Pin planner inconsistency to datasheet

tesc — Tue, 10 Feb 2026 14:39:07 GMT

Hi,

The tool is now updated with P3 for the PWM for nRF54LM20A. Thanks again for the report!

Regards,
Terje

RE: Pin planner inconsistency to datasheet

Adam Broders — Tue, 10 Feb 2026 13:42:42 GMT

Sounds good, thank you for the clarification!

Please let Helmut Lord know the planner was appreciated! It did confirm a lot of functionality and for the most part confirmed my pin selections are likely to work for the intended purpose!

RE: Pin planner inconsistency to datasheet

tesc — Tue, 10 Feb 2026 13:40:08 GMT

Hi,

Please note that while made by a Nordic employee, the pin planner (https://pinplanner.app/) is not an official Nordic application. There is also a disclamer about this at the bottom of the pin planner page.

If there are any discrepancies between the pin planner and official documentation, the official documentation is to be trusted. In this case, the datasheet states that GPIO port P3 can be used for PWM, for all three PWM instances.

I have notified Helmut Lord (who made the pin planner tool) about the issue, so that he can fix it. Thank you for the report!

Regards,
Terje

RE: Pin planner inconsistency to datasheet

Adam Broders — Tue, 10 Feb 2026 12:54:02 GMT

One of our FW engineers confirmed that at least basic functionality is working for PWM on pin P3.04 on some previous tests they had run.

Would still like to confirm if this is a documentation mistake or if there is a reason it's not included in the pin planner, such as perhaps a known issue with port 3 that we haven't discovered yet. Similarly would be good to know if comparators aren't included because of a known issue.