Zephyr applications use the nrf52840_pca10059 board configuration to run on the nRF52840 PCA10059 (USB Dongle) hardware. It provides support for the Nordic Semiconductor nRF52840 ARM Cortex-M4F CPU and the following devices:
- RADIO (Bluetooth Low Energy and 802.15.4)
nrf52840_pca10059 has two external oscillators. The frequency of
the slow clock is 32.768 kHz. The frequency of the main clock
is 32 MHz.
nrf52840_pca10059 board configuration supports the following
Other hardware features are not supported by the Zephyr kernel. See nRF52840 Dongle website  and Nordic Semiconductor Documentation library  for a complete list of nRF52840 PCA10059 Development Kit board hardware features.
Programming and Debugging¶
Applications for the
nrf52840_pca10059 board configuration can be
built in the usual way (see Build an Application for more details);
however, an external debugger IC is necessary to program the device,
and the standard debugging targets are not currently available.
Flashing Zephyr onto the
nrf52840_pca10059 board requires an external
J-Link programmer. The programmer is attached to the SWD header on the back
side of the board.
Follow the instructions in the Nordic nRF5x Segger J-Link page to install and configure all the necessary software. Further information can be found in Flashing. Then build and flash applications as usual (see Build an Application and Run an Application for more details).
Here is an example for the Blinky Application application.
# On Linux/macOS cd $ZEPHYR_BASE/samples/basic/blinky mkdir build && cd build # On Windows cd %ZEPHYR_BASE%\samples\basic\blinky mkdir build & cd build # Use cmake to configure a Ninja-based build system: cmake -GNinja -DBOARD=nrf52840_pca10059 .. # Now run ninja on the generated build system: ninja ninja flash
Observe the LED on the board blinking.