.. zephyr:board:: da14695_dk_usb

DA14695 Development Kit USB ###########################

Overview

The DA14695 Development Kit USB is a low cost development board for DA14695. The development kit comes with an integrated debugger and an USB hub to have both the on-chip USB and the J-Link connected via a single port.

Hardware

DA14695 Development Kit USB has two external oscillators. The frequency of the sleep clock is 32768 Hz. The frequency of the system clock is 32 MHz.

Supported Features

.. zephyr:board-supported-hw::

For more information about the DA14695 Development Kit see:

DA14695 DK USB website_

System Clock

The DA14695 Development Kit USB is configured to use the 32 MHz external oscillator on the board.

Connections and IOs

The DA14695 Development Kit USB has one LED and one push button which can be used by applications. The UART is connected to on-board serial converter and accessible via USB1 port on motherboard.

The pin connections are as follows:

LED (red), = P1.01
BUTTON, labeled k1 = P0.06
UART RX, connected to J-Link serial = P0.08
UART TX, connected to J-Link serial = P0.09

System requirements

Prerequisites

Renesas HAL requires Bluetooth controller binary blobs in order to work. Run the command below to retrieve those files.

.. code-block:: console

west blobs fetch hal_renesas

.. note::

It is recommended running the command above after :file:west update.

Programming and Debugging

.. zephyr:board-supported-runners::

Applications for the da14695_dk_usb board configuration can be built, flashed, and debugged in the usual way. See :ref:build_an_application and :ref:application_run for more details on building and running.

Flashing

The DA14695 boots from an external flash connected to QSPI interface. The image written to flash has to have proper header prepended. The process is simplified by using dedicated eZFlashCLI_ tool that takes care of writing header and can handle different types of flash chips connected to DA1469x MCU. Follow instructions on ezFlashCLI_ to install the tool. Once installed, flashing can be done in the usual way.

.. zephyr-app-commands:: :zephyr-app: samples/basic/blinky :board: da14695_dk_usb :goals: build flash

Debugging

The DA14695 Development Kit USB includes a J-Link_ adaptor built-in which provides both debugging interface and serial port. Application can be debugged in the usual way once DA14695 Development Kit USB is connected to PC via USB.

References

.. target-notes::

.. _DA14695 DK USB website: https://www.renesas.com/us/en/products/wireless-connectivity/bluetooth-low-energy/da14695-00hqdevkt-u-smartbond-da14695-bluetooth-low-energy-52-usb-development-kit .. _DA1469x Datasheet: https://www.renesas.com/eu/en/document/dst/da1469x-datasheet .. _J-Link: https://www.segger.com/jlink-debug-probes.html .. _ezFlashCLI: https://github.com/ezflash/ezFlashCLI/