Nordic nRF52840-DK (Adafruit BSP)

Hardware

Platform Nordic nRF52: The nRF52 Series are built for speed to carry out increasingly complex tasks in the shortest possible time and return to sleep, conserving precious battery power. They have a Cortex-M4F processor which makes them quite capable Bluetooth Smart SoCs.

Microcontroller	NRF52840
Frequency	64MHz
Flash	796KB
RAM	243KB
Vendor	Nordic

Configuration

Please use nrf52840_dk_adafruit ID for board option in “platformio.ini” (Project Configuration File):

[env:nrf52840_dk_adafruit]
platform = nordicnrf52
board = nrf52840_dk_adafruit

You can override default Nordic nRF52840-DK (Adafruit BSP) settings per build environment using board_*** option, where *** is a JSON object path from board manifest nrf52840_dk_adafruit.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:nrf52840_dk_adafruit]
platform = nordicnrf52
board = nrf52840_dk_adafruit

; change microcontroller
board_build.mcu = nrf52840

; change MCU frequency
board_build.f_cpu = 64000000L

Uploading

Nordic nRF52840-DK (Adafruit BSP) supports the following uploading protocols:

• blackmagic

• cmsis-dap

• jlink

• nrfjprog

• stlink

Default protocol is jlink

You can change upload protocol using upload_protocol option:

[env:nrf52840_dk_adafruit]
platform = nordicnrf52
board = nrf52840_dk_adafruit

upload_protocol = jlink

Debugging

Debugging - “1-click” solution for debugging with a zero configuration.

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions and configuration information.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

Nordic nRF52840-DK (Adafruit BSP) has on-board debug probe and IS READY for debugging. You don’t need to use/buy external debug probe.

Compatible Tools	On-board	Default
Black Magic Probe
CMSIS-DAP
J-LINK	Yes	Yes
ST-LINK

Frameworks

Name	Description
Arduino	Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences.