nrf52 raw frames

[jeanjean]

Hi,

I want to workout a very simple custom wireless protocol, is it possible to send raw frames with the nrf52 ?
So not following the BLE standard and disable whitening.

Is there somewhere an example for it.

Thanks in advance!
Jan

[Priyanka]

Hi,

Letting you know that I am looking into it and will get back to you with a response soon. Please note that there might be a delay as we are currently short staffed owing to the summer holidays here in Norway. Thank you for your patience and understanding.

Best Regards,

Priyanka

[Priyanka]

Hi Jan,

Please take a look at this ticket and let me know if it helps.

-Priyanka

[jeanjean]

No, that does not help, I completely want to bypass the BLE standard.
I want to send a raw frame and try to receive it with a SDR on the other side.

Regards,
Jan

[Priyanka]

Hi Jan,

I will check this internally and get back to you.

-Priyanka

[Priyanka]

Hi Jan,

Please take a look at this https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/esb/README.html 

There are also a few simpler samples in the previous (nRF5) SDK :

https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/nrf_dev_radio_tx_example.html?cp=9_1_4_6_30 

https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/nrf_dev_radio_rx_example.html?cp=9_1_4_6_29 

-Priyanka

[jeanjean]

Thanks, that is exactly what I need !

The radio tx example works for me:
Looks like its transmitting one byte, do you know the format ?
Is it just the BLE preamble and the data byte ?

| preamble | databyte |

Other question: does the sniffer have some raw mode, like just sniffing on a ble channel and show also invalid ble frames ?

Thanks,