MPSL error although I am not using MPSL

RE: MPSL error although I am not using MPSL

Einar Thorsrud — Tue, 17 Oct 2023 06:35:07 GMT

Hi,

Sorry about the link, that was my bad. The content I wanted to link to was these configs that are needed for multiprotocol applications:

CONFIG_MPSL_DYNAMIC_INTERRUPTS=y
CONFIG_ESB_DYNAMIC_INTERRUPTS=y
CONFIG_DYNAMIC_INTERRUPTS=y
CONFIG_DYNAMIC_DIRECT_INTERRUPTS=y

And you likely want this

CONFIG_BT_UNINIT_MPSL_ON_DISABLE=y

as well. When enabled, it uninitializes MPSL when bt_disable() is used. This releases all peripherals used by the MPSL.

With these configs you can change protocol at run-time.

RE: MPSL error although I am not using MPSL

Omid — Mon, 16 Oct 2023 16:11:10 GMT

Thanks, the link to the configuration explanation does not work.

RE: MPSL error although I am not using MPSL

Einar Thorsrud — Fri, 13 Oct 2023 13:03:17 GMT

Hi,

The MPSL is always used if you are using the SoftDevice Controller, which you are using. In this case, the MPSL "owns" the radio, and you will get asserts if you access the radio and some other peripherals directly. If you want to both use the radio directly and use Bluetooth, you need to use MPSL timeslots so that the MPSL grants you time slots where you are allowed to use the radio in between Bluetooth events. You also need some other configurations as explained in the next post (edited).

Alternatively, if you don't need Bluetooth, don't set " CONFIG_BT=y", and then you are free to use the radio as you like.