nRF51 Dongle

Overview

The nRF51 Dongle (PCA10031) hardware provides support for the Nordic Semiconductor nRF51822 ARM Cortex-M0 CPU.

More information about the board can be found at the nRF51 Dongle website [1]. The Nordic Semiconductor TechDocs [2] contains the processor’s information and the datasheet.

nRF51 Dongle has two external oscillators. The frequency of the slow clock is 32.768 kHz. The frequency of the main clock is 16 MHz.

The nrf51dongle board supports the hardware features listed below.

on-chip / on-board: Feature integrated in the SoC / present on the board.
2 / 2: Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo: Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

See nRF51 Dongle website [1] and Nordic Semiconductor TechDocs [2] for a complete list of nRF51 Dongle hardware features.

The nrf51dongle board supports the runners and associated west commands listed below.

	flash	debug

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 Building an Application and Run an Application for more details).

Here is an example for the Hello World application.

First, run your favorite terminal program to listen for output.

$ minicom -D <tty_device> -b 115200

Replace <tty_device> with the port where the board nRF51 Dongle can be found. For example, under Linux, /dev/ttyACM0.

Then build and flash the application in the usual way.

# From the root of the zephyr repository
west build -b nrf51dongle/nrf51822 samples/hello_world
west flash

Refer to the Nordic nRF5x Segger J-Link page to learn about debugging Nordic boards with a Segger IC.

Build and flash the Blinky sample to test that the onboard LED is working properly with Zephyr.