Bluetooth LE controller selection for nRF5340

RE: Bluetooth LE controller selection for nRF5340

PBD5 — Thu, 26 Jan 2023 08:19:14 GMT

Thanks for the clarification!

RE: Bluetooth LE controller selection for nRF5340

Øivind — Wed, 25 Jan 2023 15:51:40 GMT

Sorry for not being clear about that. The controller selection should only be selected for the network core on the nRF5340. So in your scenario you only put the config in child_image/hci_rpmsg.conf.

RE: Bluetooth LE controller selection for nRF5340

PBD5 — Wed, 25 Jan 2023 10:25:30 GMT

Hello Øivind,

thank you very much for the explanation, now it makes sense. Maybe just a small follow-up question: in the multi-image scenario (nRF5340 Audio DK) I assume that the config option to select the controller is supposed to go to both prj.conf and child_image/hci_rpmsg.conf files, correct?

Thanks.

RE: Bluetooth LE controller selection for nRF5340

Øivind — Tue, 24 Jan 2023 12:20:44 GMT

Hi,

hci_rpmsg is a sample which exposes bluetooth controller support to another device or CPU using RPMsg. The controller is included when building the sample, and the sample supports both our softdevice controller and Zephyr's controller.

Selecting controller is done by adding one of the following configs:

#Enable Nordic SoftDevice Controller
CONFIG_BT_LL_SOFTDEVICE=y

#Enable Zephyr Controller
CONFIG_BT_LL_SW_SPLIT=y

Only one of the config should be enabled. By default the SoftDevice Controller is enabled.