Thingy:53 FEM TX Gain adjustment

RE: Thingy:53 FEM TX Gain adjustment

GatCode — Wed, 20 Jul 2022 06:42:58 GMT

Hi Øyvind,

for example I tried the Nordic Audio Controller (https://github.com/nrfconnect/sdk-nrf/blob/main/applications/nrf5340_audio/bin/ble5-ctr-rpmsg_3269.hex). Yes but in this case there is no access to the child image given that the before mentioned hex file is the child image.

Thanks!

RE: Thingy:53 FEM TX Gain adjustment

Øyvind — Wed, 13 Jul 2022 08:56:35 GMT

Hello again,

What netcore image are you running on the device? The Thingy:53 Matter Weather Station application configures the CONFIG_MPSL_FEM_NRF21540_TX_GAIN_DB in a child_image fragment multiprotocol_rpmsg.conf. When building the Matter application, the multiprotocol_rpmsg image is built as well. Flashing the matter application will flash both cores with correct image.

Kind regards,
Øyvind

RE: Thingy:53 FEM TX Gain adjustment

GatCode — Tue, 12 Jul 2022 14:27:21 GMT

Hi Øyvind,

thank you very much for your reply!

Yes, I've looked into those chapters but these always refer to the netcore. Given the proprietary controller on the netcore I mentioned before, theses are unfortunately not applicable.

Thanks!

RE: Thingy:53 FEM TX Gain adjustment

Øyvind — Tue, 12 Jul 2022 13:48:35 GMT

Hello,
the DevZone team and Nordic Semiconductor are currently in a summer vacation period, some delays in answers must be expected due to lower staffing during this period. We apologize for the inconvenience.

I will need some more time to provide an answer to your question.

Have you looked into our MPSL documentation on nRF21540 usage, or the Working with RF Front-End Modules? The Antenna Selection chapter in Developing with Thingy:53.

Kind regards,
Øyvind