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

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 have not been enabled yet for this board. 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.