| .. _bl654_usb: |
| |
| Laird Connectivity BL654 USB (451-00004) |
| ######################################## |
| |
| Overview |
| ******** |
| |
| The BL654 USB adapter hardware (Laird Connectivity part 451-00004) provides |
| support for the Laird Connectivity BL654 module powered by a Nordic |
| Semiconductor nRF52840 ARM Cortex-M4F CPU. |
| |
| This USB adapter has the following features: |
| |
| * CLOCK |
| * FLASH |
| * :abbr:`GPIO (General Purpose Input Output)` |
| * :abbr:`MPU (Memory Protection Unit)` |
| * :abbr:`NVIC (Nested Vectored Interrupt Controller)` |
| * :abbr:`PWM (Pulse Width Modulation)` |
| * RADIO (Bluetooth Low Energy and 802.15.4) |
| * :abbr:`USB (Universal Serial Bus)` |
| * :abbr:`WDT (Watchdog Timer)` |
| * :abbr:`RTC (nRF RTC System Clock)` |
| |
| .. figure:: img/bl654_usb.jpg |
| :width: 500px |
| :align: center |
| :alt: BL654 USB adapter |
| |
| BL654 USB Adapter |
| |
| .. figure:: img/bl654_usb_pcb.jpg |
| :width: 500px |
| :align: center |
| :alt: 451-00004 Box Contents |
| |
| BL654 USB Adapter PCB |
| |
| More information about the BL654 USB adapter can be found on the `BL654 USB |
| Dongle Quick Start Guide`_. There is more information on the BL654 range on |
| the `BL654 website`_. |
| |
| Hardware |
| ******** |
| |
| Supported Features |
| ================== |
| |
| The BL654 USB board configuration supports the following |
| hardware features: |
| |
| +-----------+------------+----------------------+ |
| | Interface | Controller | Driver/Component | |
| +===========+============+======================+ |
| | CLOCK | on-chip | clock_control | |
| +-----------+------------+----------------------+ |
| | FLASH | on-chip | flash | |
| +-----------+------------+----------------------+ |
| | GPIO | on-chip | gpio | |
| +-----------+------------+----------------------+ |
| | MPU | on-chip | arch/arm | |
| +-----------+------------+----------------------+ |
| | NVIC | on-chip | arch/arm | |
| +-----------+------------+----------------------+ |
| | PWM | on-chip | pwm | |
| +-----------+------------+----------------------+ |
| | RADIO | on-chip | Bluetooth, | |
| | | | ieee802154 | |
| +-----------+------------+----------------------+ |
| | RTC | on-chip | system clock | |
| +-----------+------------+----------------------+ |
| | USB | on-chip | usb | |
| +-----------+------------+----------------------+ |
| | WDT | on-chip | watchdog | |
| +-----------+------------+----------------------+ |
| |
| Other hardware features have not been enabled yet for this board. |
| See `BL654 website`_ |
| for a complete list of BL654 USB adapter hardware features. |
| |
| Connections and IOs |
| =================== |
| |
| LED |
| --- |
| |
| * LED1 (blue) = P0.13 |
| |
| Push buttons |
| ------------ |
| |
| * RESET = SW1 = nReset |
| |
| Serial Port |
| =========== |
| |
| Zephyr console output is available as follows: |
| |
| - using the USB connector, which may be used to make the console available on PC as |
| USB CDC class. |
| |
| Programming and Debugging |
| ************************* |
| |
| Applications for the ``bl654_usb`` board configuration can be |
| built in the usual way (see :ref:`build_an_application` for more details). The |
| ``bl654_usb`` board cannot be used for debugging. The compatible BL654_DVK |
| board can be used for development. Documentation can be found at the `BL654_DVK |
| Zephyr site`_ and :zephyr_file:`boards/arm/bl654_dvk/doc/bl654_dvk.rst` |
| |
| Flashing |
| ======== |
| |
| The board supports programming using the built-in bootloader. |
| |
| The board is factory-programmed with a Laird Connectivity variation of Nordic's |
| open bootloader from Nordic's nRF5x SDK. With this option, you'll use |
| Nordic's `nrfutil`_ program to create firmware packages supported by this |
| bootloader and flash them to the device. Make sure ``nrfutil`` is installed |
| before proceeding. These instructions were tested with version 6.1.0. |
| |
| #. With the adapter plugged in, reset the board into the bootloader by pressing |
| the RESET button. |
| |
| The push button is in a pin-hole on the logo side of the USB adapter. |
| |
| .. image:: img/bl654_usb_reset.jpg |
| :width: 500px |
| :align: center |
| :alt: Location of RESET button |
| |
| The blue LED should start a fade pattern, signalling the bootloader is |
| running. |
| |
| #. Compile a Zephyr application; we'll use :ref:`blinky <blinky-sample>`. |
| |
| .. zephyr-app-commands:: |
| :app: zephyr/samples/basic/blinky |
| :board: bl654_usb |
| :goals: build |
| |
| #. Package the application for the bootloader using ``nrfutil``: |
| |
| .. code-block:: console |
| |
| nrfutil pkg generate --hw-version 52 --sd-req=0x00 \ |
| --application build/zephyr/zephyr.hex \ |
| --application-version 1 blinky.zip |
| |
| #. Flash it onto the board. Note :file:`/dev/ttyACM0` is for Linux; it will be |
| something like ``COMx`` on Windows, and something else on macOS. |
| |
| .. code-block:: console |
| |
| nrfutil dfu usb-serial -pkg blinky.zip -p /dev/ttyACM0 |
| |
| When this command exits, observe the blue LED on the board blinking. |
| |
| |
| Testing Bluetooth on the BL654 USB |
| *********************************** |
| Many of the Bluetooth examples will work on the BL654 USB. |
| Try them out: |
| |
| * :ref:`ble_peripheral` |
| * :ref:`bluetooth-eddystone-sample` |
| * :ref:`bluetooth-ibeacon-sample` |
| |
| |
| Testing the LED on the BL654 USB |
| ************************************************ |
| |
| There is a sample that allows you to test that the LED on |
| the board is working properly with Zephyr: |
| |
| * :ref:`blinky-sample` |
| |
| You can build and flash the example to make sure Zephyr is running correctly on |
| your board. The LED definitions can be found in |
| :zephyr_file:`boards/arm/bl654_usb/bl654_usb.dts`. |
| |
| |
| References |
| ********** |
| |
| .. target-notes:: |
| |
| .. _BL654 USB Dongle Quick Start Guide: https://www.lairdconnect.com/documentation/user-guide-bl654-usb-nordic-sdk-zephyr |
| .. _BL654 website: https://connectivity.lairdtech.com/wireless-modules/bluetooth-modules/bluetooth-5-modules/bl654-series |
| .. _J-Link Software and documentation pack: https://www.segger.com/jlink-software.html |
| .. _Creating a secure bootloader image: https://www.lairdconnect.com/documentation/application-note-creating-secure-bootloader-image-bl654-usb |
| .. _nrfutil: https://github.com/NordicSemiconductor/pc-nrfutil |
| .. _BL654_DVK Zephyr site: https://docs.zephyrproject.org/latest/boards/arm/bl654_dvk/doc/bl654_dvk.html |