BL654 DVK

Overview

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

It is also pin compatible with the BL654PA which adds a power amplifier. The “pa” variant provides this compatibility. Use board bl654_dvk/nrf52840/pa to build for that target. Bluetooth LE regulatory certifications obtained by Ezurio are not applicable to BL654PA variant. It should not be used in commercial applications prior to re-certification being performed - please review with the Ezurio team at www.ezurio.com/contact

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 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 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

The bl654_dvk board supports the runners and associated west commands listed below.

flash debug

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/ezurio/bl654_dvk/bl654_dvk.dts.

References