Dynamic TX power not possible with zephyr controller and extended advertising

RE: Dynamic TX power not possible with zephyr controller and extended advertising

Carles — Tue, 04 Jan 2022 11:21:42 GMT

>So this means now, wait until the changes from official Zepyhr main are taken over by downstream Nordic Zepyhr repo, right?

Right, that is correct

RE: Dynamic TX power not possible with zephyr controller and extended advertising

PatH — Mon, 03 Jan 2022 16:24:02 GMT

Thanks for the hint Saleh, and for your work on the issue!

RE: Dynamic TX power not possible with zephyr controller and extended advertising

PatH — Mon, 03 Jan 2022 16:23:24 GMT

I'm sorry, but as you see, it became a bit later than a week until I finally could check this PR. I couldn't directly cherry-pick the PR because of merge conflicts, but when I manually copied the changes from the commit, it now seems to work! Meaning I can now adapt the TX power!

So this means now, wait until the changes from official Zepyhr main are taken over by downstream Nordic Zepyhr repo, right?

Also, thanks to you all, and a happy new year!

RE: Dynamic TX power not possible with zephyr controller and extended advertising

Saleh — Fri, 31 Dec 2021 16:06:21 GMT

Hi

In this similar question I have pointed to the source code that is causing this problem (by the current version of Zephyr at time of writing this answer):
https://devzone.nordicsemi.com/f/nordic-q-a/81796/set-tx-power-of-nrf52833-using-zephyr

And as Carles has mentioned in one the answers, this problem should be fixed by this PR:
https://github.com/zephyrproject-rtos/zephyr/pull/41133

RE: Dynamic TX power not possible with zephyr controller and extended advertising

PatH — Tue, 14 Dec 2021 15:43:13 GMT

Perfect, thank you two very much! I'll try this out this week and give you feedback then!

RE: Dynamic TX power not possible with zephyr controller and extended advertising

Carles — Tue, 14 Dec 2021 15:41:34 GMT

Hi Pat,

Vinayak has posted a PR upstream that you can test to see if it works for you:

https://github.com/zephyrproject-rtos/zephyr/pull/41133

It would be great if you could try it out and then leave a comment in the PR itself.

RE: Dynamic TX power not possible with zephyr controller and extended advertising

ovrebekk — Mon, 13 Dec 2021 14:34:27 GMT

Hi Pat

According to the developers we can't support the Zephyr controller directly, since this is not developed by us (but by the Zephyr community), but there is a Discord channel available to ask questions to the Zephyr developers.

Most likely this is a missing feature in the implementation of advertising extensions, since this is a relatively new feature in the Zephyr controller.

I will check with the developers on Discord and see if they have some input on this.

Best regards
Torbjørn

RE: Dynamic TX power not possible with zephyr controller and extended advertising

PatH — Fri, 10 Dec 2021 13:54:36 GMT

Hey Torbjørn!

Nice of you! I'm glad you could reproduce it! Have a nice weekend!

Pat

RE: Dynamic TX power not possible with zephyr controller and extended advertising

ovrebekk — Fri, 10 Dec 2021 13:52:23 GMT

Hi Pat

Håkon is currently unavailable, and I will handle your case in the mean time.

I tested your changes and seem to see the same here. When using normal advertising it works fine both with the Nordic and Zephyr controller, but once you enable extended advertising the RSSI doesn't change significantly.

I will have to look into this more next week and get back to you.

Best regards
Torbjørn

RE: Dynamic TX power not possible with zephyr controller and extended advertising

helsing — Tue, 30 Nov 2021 09:57:13 GMT

Hi Pat,

Thank you for the question. I am taking a look and will get back to you.

Regards,

Håkon