21540DK FEM seems inactivate

RE: 21540DK FEM seems inactivate

JONATHAN LL — Tue, 05 Jul 2022 12:09:27 GMT

Sometimes supplying the 21540DK from a battery can improve the result.

If you can sniff the traffic, do you have lots of package loss?

We are also looking in to solution and cause of the issue on our side both HW and SW wise.
Regards,
Jonathan

RE: 21540DK FEM seems inactivate

Avadacadabara — Tue, 05 Jul 2022 11:45:40 GMT

Hi, sorry for late reply,

So you were saying reduce TX_gain of peripheral uart and see if advertising power goes down?

I haven't done any modification to peripheral uart yet, I ran it just to make sure FEM21540 is not damaged. But I'll look into it.

Thanks,

Ava

RE: 21540DK FEM seems inactivate

JONATHAN LL — Thu, 30 Jun 2022 14:50:42 GMT

HI,

We do see some similar behavior at peripheral uart, do you see any major change in performance if you reduce the output power?

Regards,
Jonathan

RE: 21540DK FEM seems inactivate

JONATHAN LL — Fri, 17 Jun 2022 17:37:09 GMT

Hi Ava,

Will test this and see if i get similar results, then update you whit some answers or maybe a couple of questions.

Regards,
Jonathan