Cohabitation between BLE and Proprietary/ShockBurst on SD140

RE: Cohabitation between BLE and Proprietary/ShockBurst on SD140

ovrebekk — Tue, 23 Apr 2024 13:29:59 GMT

Same to you Yves, good to hear you got it working 🙂

RE: Cohabitation between BLE and Proprietary/ShockBurst on SD140

Yves Oesch — Tue, 23 Apr 2024 10:00:42 GMT

Thanks for the hint Torbjorn. It works fine now. Have a nice day!

RE: Cohabitation between BLE and Proprietary/ShockBurst on SD140

ovrebekk — Fri, 19 Apr 2024 12:53:08 GMT

Hi Yves

Did you make sure to stop the external HF crystal before enabling the SoftDevice again?

Best regards
Torbjørn

RE: Cohabitation between BLE and Proprietary/ShockBurst on SD140

Yves Oesch — Thu, 18 Apr 2024 18:40:50 GMT

Hi Torbjorn,

thanks a lot for the excellent support. That was it! I copy-pasted the clock_initialization() from "SDK\examples\peripheral\radio\transmitter\main.c" and called it after the nrf_sdh_disable_request(). Now I see the packet on the spectrum analyser!

I just have an issue to restart the SoftDevice after the transmission: I tried both those line in different order wihout success:

err_code = nrf_sdh_enable_request();
APP_ERROR_CHECK(err_code);
err_code = nrf_esb_disable();
APP_ERROR_CHECK(err_code);

I've this error: app: ERROR 4097 [Unknown error code]

Maybe a full re-initialization is needed, setting device name, address and advertising init + start isn't it?

Could you roughly describe the sequence needed to :

- Switch off ESB

- Re-enable the ble stack.

Is there something particular that is needed to be done around the clock management in this sequence?

Have a nice day

Yves

RE: Cohabitation between BLE and Proprietary/ShockBurst on SD140

ovrebekk — Thu, 18 Apr 2024 14:06:35 GMT

Hi Yves

Most likely the issue here is that the external HF crystal is not enabled when you are using the ESB library.

The SoftDevice will start the HF crystal automatically, but you have to do this manually when using ESB (ideally the library should have handled this for you, but this was never implemented).

If you look at the ESB examples you can see how this is done.

If this is not the issue, and you start the HF crystal as needed, then just let me know and I will take a closer look.

Best regards
Torbjørn