OpenThread Co-Processor allows building a Thread Border Router. The code in this sample is only the MCU target part of a complete Thread Border Router. The Co-Processor can act in two variants: Network Co-Processor (NCP) and Radio Co-Processor (RCP), see https://openthread.io/platforms/co-processor.
Additional required host-side tools (e.g. otbr-agent) to build a Thread Border Router can be obtained by following https://openthread.io/guides/border-router/build#set-up-the-border-router.
The preferred Co-Processor configuration of OpenThread is RCP now.
The source code for this sample application can be found at: :zephyr_file:`samples/net/openthread/coprocessor`.
Build the OpenThread NCP sample application like this:
.. zephyr-app-commands:: :zephyr-app: samples/net/openthread/coprocessor :board: <board to use> :conf: <config file to use> :goals: build :compact:
Example building for the nrf52840dk_nrf52840 for RCP:
.. zephyr-app-commands:: :zephyr-app: samples/net/openthread/coprocessor :host-os: unix :board: nrf52840dk_nrf52840 :conf: "prj.conf overlay-rcp.conf" :goals: run :compact:
There are configuration files for different boards and setups in the coprocessor directory:
- :file:`prj.conf` Generic NCP config file. Use this, if you want the NCP configuration.
- :file:`overlay-rcp.conf`
- RCP overlay file. Use this in combination with prj.conf, if you want the RCP configuration.
- :file:`overlay-tri-n4m-br.conf` This is an overlay for the dedicated Thread Border Router hardware https://www.tridonic.com/com/en/products/net4more-borderROUTER-PoE-Thread.asp. The board support is not part of the Zephyr repositories, but the product is based on NXP K64 and AT86RF233. This file can be used as an example for a development set-up based on development boards.