Multiple stacks coexisting: Wirepas, BLE and LoRaWAN. Is it possible?

[Liz]

Hello,

I am trying to determine if it is possible to have those 3 stacks coexisting.

I have an iSP4520 chip, which includes an nRF52832 (BLE and Wirepas) and Semtech SX1262 (LoRaWAN).

I understand the physical limitation of having to share the same antenna between BLE and Wirepas.

I was wondering if there was a way that I could switch back and forth between the two options?

If so, what SDKs should I be looking into using?

Thank you for your help.

[Simonr]

Hi 

Yes, this should be possible. Are all three protocols sharing the same antenna? We have a guide on coexistence here. We recommend the nRF Connect SDK for all new projects. The latest stable release is nRF Connect SDK v3.2.2 with all the latest features: https://docs.nordicsemi.com/bundle/ncs-3.2.2/page/nrf/index.html 

Best regards,

Simon

[Liz]

Wirepas and BLE are sharing the same antenna. I am trying to understand how the Wirepas mesh stack and Wirepas SDK work together with nRF5 SDK or nRF Connect SDK. My confusion is because the Wirepas code is not compatible with Zephyr and has its own time slicing/scheduler.

[Simonr]

Hi again

I see, then you will need some kind of handshake between the Wirepas and nRF device (for example with GPIOs) to make sure that when one of them are using the antenna, the other will "stand down" and wait for its turn. Since the SDKs aren't compatible it will be necessary that you add a separate mechanism for this.

Unfortunately this isn't something we can help you with. When you have decided on the method to do so, we can help you implementing it on the nRF side, but you will be responsible for getting it to work with the Wirepas device in the end.

Best regards,

Simon