BL654 Development Kit

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

1MB

RAM

256KB

Vendor

Laird Connectivity

Configuration

Please use laird_bl654_dvk ID for board option in “platformio.ini” (Project Configuration File):

[env:laird_bl654_dvk]
platform = nordicnrf52
board = laird_bl654_dvk

You can override default BL654 Development Kit settings per build environment using board_*** option, where *** is a JSON object path from board manifest laird_bl654_dvk.json. For example, board_build.mcu, board_build.f_cpu, etc.

[env:laird_bl654_dvk]
platform = nordicnrf52
board = laird_bl654_dvk

; change microcontroller
board_build.mcu = nrf52840

; change MCU frequency
board_build.f_cpu = 64000000L

Uploading

BL654 Development Kit supports the following uploading protocols:

  • blackmagic

  • cmsis-dap

  • jlink

  • mbed

  • nrfjprog

  • stlink

Default protocol is jlink

You can change upload protocol using upload_protocol option:

[env:laird_bl654_dvk]
platform = nordicnrf52
board = laird_bl654_dvk

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).

BL654 Development Kit 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

Yes

J-LINK

Yes

Yes

ST-LINK

Frameworks

Name

Description

Zephyr

Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures