RE: What are the considerations when using the dual core of the nrf5340?

Kazi Afroza Sultana — Fri, 16 Dec 2022 09:38:11 GMT

Hello,

The network core is an Arm Cortex-M33 processor with a reduced feature set, designed for ultra-low-power operation. This core is used for radio communication and real time processing tasks involving low level radio protocol layers.

Application core is fully featured processor used for the tasks that require high performance for application-level logic.

Bluetooth LE controller runs on network core and Host runs on application core.

When using IEEE 802.15.4 (for the sample nRF IEEE 802.15.4: Serialization RPMsg) on the nRF5340, run the IEEE 802.15.4 radio driver on the network core and the high-level radio stack (the host part of the Thread and Zigbee stacks) and the application logic on the application core, OpenAMp library is used to communicate with the nRF IEEE 802.15.4 radio driver serialization host that runs on a separate core like nRF5340 application core.

We have documentation https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.2.0/nrf/ug_nrf5340.html that describes details about the samples work on these two cores, you can look at.

Thanks.

Best Regards,

Kazi Afroza Sultana