Switch between Bluetooth mesh and constant carrier

RE: Switch between Bluetooth mesh and constant carrier

Sigurd — Fri, 03 Mar 2023 10:14:54 GMT

Hi,

[quote user="ThierryH"]

Luckily I found this topic because I have the exact same question as Tim. I do understand the idea behind the bt_disable feature. My concern is the MCU family that I'm using from Nordic...

Our product uses a nRF5340,

[/quote]

bt_disable() is currently not supported on nRF5340. There is a feature request here for it: https://github.com/zephyrproject-rtos/zephyr/issues/52907

But your use-case might be solved without using bt_disable().

Please create a new support case for your use-case. https://devzone.nordicsemi.com/support/add

RE: Switch between Bluetooth mesh and constant carrier

ThierryH — Thu, 02 Mar 2023 12:40:01 GMT

Hello Sigurd

Luckily I found this topic because I have the exact same question as Tim. I do understand the idea behind the bt_disable feature. My concern is the MCU family that I'm using from Nordic...

Our product uses a nRF5340, so it has two cores, one for the application, the second one is the netcore. If I call bt_disable, this should disable the bt stack on the netcore, but how can I call the required functions on the netcore to start a constant carrier test? My production firmware contains two separate projects, one for the appcore and one for the netcore where I start and stop the carrier test with some "events" over shared memory. But when I use the BT Mesh stack, the netcore contains the child image with that stack, so no idea how I should be able to launch the carrier test with the BT Mesh stack already on the netcore part of the nRF5340...

Thanks in advance for your assistance...

RE: Switch between Bluetooth mesh and constant carrier

Sigurd — Fri, 02 Dec 2022 15:12:27 GMT

[quote user="tim-remoticom"]Do you have an estimate of when the next NCS will come out? [/quote]

~Mid December, there is already a release candidate ready now (v2.2.0-rc1).

[quote user="tim-remoticom"]Is there something you can recommend I can do now with the current version of NCS?[/quote]

Another option would be to use the radio in a MPSL timeslot.

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrfxlib/mpsl/doc/timeslot.html

https://github.com/nrfconnect/sdk-nrf/tree/main/samples/mpsl/timeslot

https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/samples/mpsl/timeslot/README.html

RE: Switch between Bluetooth mesh and constant carrier

tim-remoticom — Fri, 02 Dec 2022 12:57:06 GMT

Hi Sigurd,

Thanks for your reply.

Great to hear that this feature will be added. Do you have an estimate of when the next NCS will come out?

Due to our tight release schedule, I don't think I can wait for this release (deliveries in a few weeks). But we will use this in the future.

Is there something you can recommend I can do now with the current version of NCS?

Kind regards,

Tim

RE: Switch between Bluetooth mesh and constant carrier

Sigurd — Fri, 02 Dec 2022 12:00:47 GMT

Hi,

For the upcoming NCS v2.2.0 release we have this in the changelog:

Bluetooth LE

Added:
- Support for hci_driver_close(), so bt_disable() can now be used to disable the SoftDevice Controller.
- The Kconfig option CONFIG_BT_UNINIT_MPSL_ON_DISABLE that, when enabled, uninitializes the MPSL when bt_disable() is used. This releases all peripherals used by the MPSL.