Nrf52840 802.15.4 intercept beginning of radio packet

[Aron S]

Hi !

I'm trying to access the beginning of a packet that is being transmitted, by accessing the SFD.
My problem is that I'm not able to do it.

NRF got a function called nrf_radio_sfd_get(), it does however not work and does only return 167.

Anyone got idea how to access the SFD of packets being sent on a channel ?

Kind regards
Aron

[Vidar Berg]

Hello Aron,

Sorry, but I'm not sure I understand the question. Could you possibly elaborate a bit more on what you are trying to achieve with this? To be intercept a RADIO transmission I believe you would have to configure a SW interrupt to trigger on the RADIO FRAMESTART event (via PPI).

Kind regards,

Vidar