Is LoRa & Z-wave concurrency available on STM32WL, similar to BLE & ZigBee/Thread concurrency on STM32WB?

menahemk · ‎2022-02-27

Andrew Neil · ‎2022-02-28

There's only one radio - so it can only be doing one thing at any one time.

You would have to devise some sort of time-sharing scheme...

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

Andrew Neil · ‎2022-02-28

It seems that SiLabs own the Z-Wave IP, and the only 3rd-party licensee is Mitsumi - so no STM32 support at all?

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

menahemk · ‎2022-02-28

Appreciate your prompt answer. Thought so.
But then how does STM32WB, with a single radio as well, claim BLE & ZigBee concurrency? I guessed so hardware-based time sharing and imagined a similar scheme in STM32WL.

Andrew Neil · ‎2022-03-01

I haven't looked into how they do it, but I don't see any particular reason to assume that it must be (custom) hardware?

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

Louis AUDOLY · ‎2022-03-02

Hello,

There is no support on STM32WL for LoRa and Zwave concurrency. We haven't any exemple, so it's up to you to create your application.

regards

Andrew Neil · ‎2022-03-02

@Louis AUDOLY - Does ST have any support at all for Zwave ?

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

Louis AUDOLY · ‎2022-03-02

Hello,

No sorry we don't have any support on this protocol.

Regards

Andrew Neil · ‎2022-03-02

This application note describes who the "concurrency" is managed:

https://www.st.com/resource/en/application_note/an5613-getting-started-with-dynamicconcurrent-mode-ble--zigbee-on-stm32wb-series-microcontrollers-stmicroelectronics.pdf

So it does, indeed, use specific hardware. But note that the WB chip has specific IEEE 802.15.4 and BLE hardware - which is not the case for LoRa / Zwave in the WL.

See recent post from @Louis AUDOLY confirming that ST have no support at all for Zwave.

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.