The nRF52840 DK is a low-cost single-board development kit that uses the nRF52840 multi-protocol SoC to develop Bluetooth® 5, Bluetooth mesh, Thread, Zigbee, ANT, IEEE 802.15.4, and 2.4 GHz proprietary applications. It also supports development on the nRF52811 SoC.
All Scenarios OS Zephyr flavour is based on Zephyr kernel.
Source the environment with proper template settings, flavour being
zephyrand target machine being
$ TEMPLATECONF=../oniro/flavours/zephyr . ./oe-core/oe-init-build-env build-oniro-zephyr
You will find yourself in the newly created build directory. Call
bitbaketo build the image. Example below shows how to build
$ MACHINE=nrf52840dk-nrf52840 bitbake zephyr-philosophers
You can set up
MACHINEvariable can be set up in
conf/local.conffile under the build directory, or via the command line.
After the build completes, the image file can be found in
pyOCD is a required host tool used by the flashing mechanism described below:
To install the latest stable version of pyOCD via pip as follows:
$ pip install --pre -U pyOCD
ValueError: The device has no langiderror is displayed due to lack of permission, perform the instructions to resolve.
To flash the image, execute the command used to build the image with
-c flash_usbappended. For example, to flash the already built zephyr-philosophers image, execute:
$ MACHINE=nrf52840dk-nrf52840 bitbake zephyr-philosophers -c flash_usb