Laird Connectivity BL654 DVK

Overview

The BL654 Development Kit hardware provides support for the Laird Connectivity BL654 module powered by a Nordic Semiconductor nRF52840 ARM Cortex-M4F CPU.

This development kit has the following features:

  • ADC

  • CLOCK

  • FLASH

  • GPIO

  • I2C

  • MPU

  • NVIC

  • PWM

  • RADIO (Bluetooth Low Energy and 802.15.4)

  • RTC

  • Segger RTT (RTT Console)

  • SPI

  • UART

  • USB

  • WDT

BL654 Development Kit

BL654 Development Kit Board

455-00001 Box Contents

455-00001 (BL654 DVK integrated antenna) Box Contents

More information about the board can be found at the BL654 website 1.

Hardware

Supported Features

The BL654 DVK board configuration supports the following hardware features:

Interface

Controller

Driver/Component

ADC

on-chip

adc

CLOCK

on-chip

clock_control

FLASH

on-chip

flash

GPIO

on-chip

gpio

I2C(M)

on-chip

i2c

MPU

on-chip

arch/arm

NVIC

on-chip

arch/arm

PWM

on-chip

pwm

RADIO

on-chip

Bluetooth, ieee802154

RTC

on-chip

system clock

RTT

Segger

console

SPI(M/S)

on-chip

spi

UART

on-chip

serial

USB

on-chip

usb

WDT

on-chip

watchdog

Other hardware features are not supported by the Zephyr kernel. See BL654 website 1 for a complete list of BL654 Development Kit board hardware features.

Connections and IOs

LED

  • LED1 (blue) = P0.13

  • LED2 (blue) = P0.14

  • LED3 (blue) = P0.15

  • LED4 (blue) = P0.16

Push buttons

  • BUTTON1 = SW1 = P0.11

  • BUTTON2 = SW2 = P0.12

  • BUTTON3 = SW9 = P0.24

  • BUTTON4 = SW10 = P0.25

  • RESET = SW3 = nReset/IF BOOT

Programming and Debugging

Applications for the bl654_dvk board configuration can be built, flashed, and debugged in the usual way. See Building an Application and Run an Application for more details on building and running.

Flashing

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.

NOTE: On the BL654 DVK, the FTDI USB should be used to access the UART console.

$ minicom -D <tty_device> -b 115200

Replace <tty_device> with the port where the board nRF52 DK can be found. For example, under Linux, /dev/ttyUSB0.

Then build and flash the application in the usual way.

# From the root of the zephyr repository
west build -b bl654_dvk samples/hello_world
west flash

Debugging

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

Testing Bluetooth on the BL654 DVK

Many of the Bluetooth examples will work on the BL654 DVK. Try them out:

Testing the LEDs and buttons on the BL654 DVK

There are 2 samples that allow you to test that the buttons (switches) and LEDs on the board are working properly with Zephyr:

You can build and flash the examples to make sure Zephyr is running correctly on your board. The button and LED definitions can be found in boards/arm/bl654_dvk/bl654_dvk.dts.