nRF21540 Dev Kit setup

RE: nRF21540 Dev Kit setup

Simon — Fri, 22 Oct 2021 14:01:01 GMT

I would highly recommend you to use the nRF Connect SDK, since the the SoftDevice doesn't support FEM.

Check out https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.7.0/nrf/releases/release-notes-1.7.0.html#highlights

Radio front-end module (FEM) support for the nRF21540 FEM range extender is now supported for production.
- Bluetooth: Direct Test Mode and Radio test sample support.
- Support for Bluetooth® LE, Thread, Zigbee, and multiprotocol applications and samples using Multiprotocol Service Layer.
- Support for nRF21540 development kit (DK), nRF21540 evaluation kit (EK) and custom board configurations.

Best regards,

Simon

RE: nRF21540 Dev Kit setup

acarpenter — Thu, 21 Oct 2021 21:29:05 GMT

Update: the schematic is uploaded here: https://devzone.nordicsemi.com/f/nordic-q-a/75510/h-w-information-for-nrf21540-development-kit-and-nrf21540-evaluation-kit/311687#311687 which told me that the unlabeled pin next to CS is PDN. However, even when I drive that high, MISO does not do anything.