nRF52 raw data from 2.4GHz transceiver

RE: nRF52 raw data from 2.4GHz transceiver

Kenneth — Wed, 10 Mar 2021 08:59:37 GMT

It's not possible to bypass the internal blocks, however there is a feature for direction finding that can send packets with continuous tone at the end of the packet, after the CRC:
https://infocenter.nordicsemi.com/topic/ps_nrf52833/radio.html#concept_dfe

RE: nRF52 raw data from 2.4GHz transceiver

rmarchand — Wed, 10 Mar 2021 00:53:43 GMT

Hi there,

what i'm really looking to do is have the transmitter emit a constant tone for a duration of <128us and also receive simultaneously. i think that given the ANT has a single connection this isn't feasible but i wanted to be sure. I wanted to do a full duplex sort of communication. is that feasible?

RE: nRF52 raw data from 2.4GHz transceiver

Dmitry — Tue, 09 Mar 2021 10:26:31 GMT

Do you want to receive constant tone as I/Q samples? Yes, you can configure DFE to record incoming signal directly from the radio (set DFEINEXTENSION to 0), but anyway, to start reception, the radio needs to match the signal against some address. Configure transmitter to send a packet consisting of just an address, then it will continue transmitting constant frequency (zero/one/center, as set in DTX bits) until DISABLE task.

RE: nRF52 raw data from 2.4GHz transceiver

Mehmet Nuri — Tue, 09 Mar 2021 02:42:13 GMT

have a look at examples/peripherals/radio example.