192 lines
6.0 KiB
ReStructuredText
192 lines
6.0 KiB
ReStructuredText
.. _bl654_usb:
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Laird Connectivity BL654 USB (451-00004)
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########################################
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Overview
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********
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The BL654 USB adapter hardware (Laird Connectivity part 451-00004) provides
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support for the Laird Connectivity BL654 module powered by a Nordic
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Semiconductor nRF52840 ARM Cortex-M4F CPU.
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This USB adapter has the following features:
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* CLOCK
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* FLASH
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* :abbr:`GPIO (General Purpose Input Output)`
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* :abbr:`MPU (Memory Protection Unit)`
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* :abbr:`NVIC (Nested Vectored Interrupt Controller)`
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* :abbr:`PWM (Pulse Width Modulation)`
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* RADIO (Bluetooth Low Energy and 802.15.4)
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* :abbr:`USB (Universal Serial Bus)`
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* :abbr:`WDT (Watchdog Timer)`
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* :abbr:`RTC (nRF RTC System Clock)`
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.. figure:: img/bl654_usb.jpg
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:align: center
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:alt: BL654 USB adapter
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BL654 USB Adapter
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.. figure:: img/bl654_usb_pcb.jpg
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:align: center
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:alt: 451-00004 Box Contents
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BL654 USB Adapter PCB
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More information about the BL654 USB adapter can be found on the `BL654 USB
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Dongle Quick Start Guide`_. There is more information on the BL654 range on
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the `BL654 website`_.
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Hardware
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********
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Supported Features
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==================
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The BL654 USB board configuration supports the following
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hardware features:
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+-----------+------------+----------------------+
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| Interface | Controller | Driver/Component |
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+===========+============+======================+
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| CLOCK | on-chip | clock_control |
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+-----------+------------+----------------------+
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| FLASH | on-chip | flash |
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+-----------+------------+----------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+----------------------+
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| MPU | on-chip | arch/arm |
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+-----------+------------+----------------------+
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| NVIC | on-chip | arch/arm |
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+-----------+------------+----------------------+
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| PWM | on-chip | pwm |
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+-----------+------------+----------------------+
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| RADIO | on-chip | Bluetooth, |
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| | | ieee802154 |
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+-----------+------------+----------------------+
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| RTC | on-chip | system clock |
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+-----------+------------+----------------------+
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| USB | on-chip | usb |
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+-----------+------------+----------------------+
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| WDT | on-chip | watchdog |
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+-----------+------------+----------------------+
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Other hardware features have not been enabled yet for this board.
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See `BL654 website`_
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for a complete list of BL654 USB adapter hardware features.
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Connections and IOs
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===================
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LED
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---
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* LED1 (blue) = P0.13
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Push buttons
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------------
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* RESET = SW1 = nReset
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Serial Port
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===========
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Zephyr console output is available as follows:
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- using the USB connector, which may be used to make the console available on PC as
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USB CDC class.
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Programming and Debugging
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*************************
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Applications for the ``bl654_usb`` board configuration can be
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built in the usual way (see :ref:`build_an_application` for more details). The
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``bl654_usb`` board cannot be used for debugging. The compatible BL654_DVK
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board can be used for development. Documentation can be found at the `BL654_DVK
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Zephyr site`_ and :zephyr_file:`boards/arm/bl654_dvk/doc/bl654_dvk.rst`
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Flashing
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========
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The board supports programming using the built-in bootloader.
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The board is factory-programmed with a Laird Connectivity variation of Nordic's
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open bootloader from Nordic's nRF5x SDK. With this option, you'll use
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Nordic's `nrfutil`_ program to create firmware packages supported by this
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bootloader and flash them to the device. Make sure ``nrfutil`` is installed
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before proceeding. These instructions were tested with version 6.1.0.
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#. With the adapter plugged in, reset the board into the bootloader by pressing
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the RESET button.
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The push button is in a pin-hole on the logo side of the USB adapter.
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.. image:: img/bl654_usb_reset.jpg
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:align: center
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:alt: Location of RESET button
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The blue LED should start a fade pattern, signalling the bootloader is
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running.
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#. Compile a Zephyr application; we'll use :ref:`blinky <blinky-sample>`.
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.. zephyr-app-commands::
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:app: zephyr/samples/basic/blinky
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:board: bl654_usb
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:goals: build
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#. Package the application for the bootloader using ``nrfutil``:
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.. code-block:: console
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nrfutil pkg generate --hw-version 52 --sd-req=0x00 \
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--application build/zephyr/zephyr.hex \
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--application-version 1 blinky.zip
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#. Flash it onto the board. Note :file:`/dev/ttyACM0` is for Linux; it will be
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something like ``COMx`` on Windows, and something else on macOS.
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.. code-block:: console
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nrfutil dfu usb-serial -pkg blinky.zip -p /dev/ttyACM0
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When this command exits, observe the blue LED on the board blinking.
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Testing Bluetooth on the BL654 USB
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***********************************
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Many of the Bluetooth examples will work on the BL654 USB.
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Try them out:
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* :ref:`ble_peripheral`
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* :ref:`bluetooth-eddystone-sample`
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* :ref:`bluetooth-ibeacon-sample`
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Testing the LED on the BL654 USB
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************************************************
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There is a sample that allows you to test that the LED on
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the board is working properly with Zephyr:
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* :ref:`blinky-sample`
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You can build and flash the example to make sure Zephyr is running correctly on
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your board. The LED definitions can be found in
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:zephyr_file:`boards/arm/bl654_usb/bl654_usb.dts`.
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References
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**********
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.. target-notes::
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.. _BL654 USB Dongle Quick Start Guide: https://www.lairdconnect.com/documentation/user-guide-bl654-usb-nordic-sdk-zephyr
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.. _BL654 website: https://connectivity.lairdtech.com/wireless-modules/bluetooth-modules/bluetooth-5-modules/bl654-series
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.. _J-Link Software and documentation pack: https://www.segger.com/jlink-software.html
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.. _Creating a secure bootloader image: https://www.lairdconnect.com/documentation/application-note-creating-secure-bootloader-image-bl654-usb
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.. _nrfutil: https://github.com/NordicSemiconductor/pc-nrfutil
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.. _BL654_DVK Zephyr site: https://docs.zephyrproject.org/latest/boards/arm/bl654_dvk/doc/bl654_dvk.html
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