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boards/silabs/dev_kits/xg27_dk2602a/doc/index.rst

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.. zephyr:board:: xg27_dk2602a

Silicon Labs xG27-DK2602A is a Dev Kit using the EFR32BG27 SoC. The kit consists of the EFR32BG27 +8 dBm Dev Kit Board (BRD2602A).

Hardware

  • EFR32BG27 Blue Gecko Wireless SoC with up to 76.8 MHz operating frequency
  • ARM® Cortex®-M33 core with 64 kB RAM and 768 kB Flash
  • Macronix ultra low power 8-Mbit SPI flash (MX25R8035F)
  • 2.4 GHz ceramic antenna for wireless transmission
  • Silicon Labs Si7021 relative humidity and temperature sensor
  • Vishay VEML6035 low power, high sensitivity ambient light Sensor
  • Silicon Labs Si7210 hall effect sensor
  • TDK InvenSense ICM-20689 6-axis inertial sensor
  • Pair of PDM microphones
  • One LED and one push button
  • Power enable signals and isolation switches for ultra low power operation
  • On-board SEGGER J-Link debugger for easy programming and debugging, which includes a USB virtual COM port and Packet Trace Interface (PTI)
  • Mini Simplicity connector for access to energy profiling and advanced wireless network debugging
  • Breakout pads for GPIO access and connection to external hardware
  • Reset button
  • CR2032 coin cell holder and external battery connector

For more information, refer to these documents:

  • xG27 Dev Kit User's Guide_

Supported Features

.. zephyr:board-supported-hw::

Flashing

The xG27 Dev Kit includes an embedded J-Link_ adapter built around EFM32GG12 microcontroller (not user-programmable). The adapter provides:

  • SWD interface to EFR32BG27 for flashing and debugging.
  • SWO trace interface to EFR32BG27 for tracing.
  • UART interface to EFR32BG27 for console access.
  • A USB connection to the host computer, which exposes CDC-ACM Serial Port endpoints for access to the console UART interface and proprietary J-Link endpoints for access to the SWD and SWO interfaces.

UART functionality of the adapter is accessible via standard CDC-ACM USB driver present in most desktop operating systems and any standard serial port terminal program e.g. picocom_.

SWD and SWO functionality is accessible via Simplicity Commander_.

The simplest way to flash the board is by using West, which runs Simplicity Commander in unattended mode and passes all the necessary arguments to it.

  • If Simplicity Commander is installed in the system and the directory in which commander executable is located is present in the :envvar:PATH environment variable:

    .. code-block:: console

    west flash

  • Otherwise, one should specify full path to the commander executable:

    .. code-block:: console

    west flash --commander <path_to_commander_directory>/commander

  • In case several J-Link adapters are connected, you must specify serial number of the adapter which should be used for flashing:

    .. code-block:: console

    west flash --dev-id <J-Link serial number>

Programming and Debugging

.. zephyr:board-supported-runners::

The sample application :zephyr:code-sample:hello_world is used for this example. Build the Zephyr kernel and application:

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: xg27_dk2602a :goals: build

Connect your device to your host computer using the USB port and you should see a USB connection. Use west's flash command

Open a serial terminal (minicom, putty, etc.) with the following settings:

  • Speed: 115200
  • Data: 8 bits
  • Parity: None
  • Stop bits: 1

Reset the board and you should be able to see on the corresponding Serial Port the following message:

.. code-block:: console

Hello World! xg27_dk2602a

.. _picocom: https://github.com/npat-efault/picocom

.. _J-Link: https://www.segger.com/jlink-debug-probes.html

.. _Simplicity Commander: https://www.silabs.com/developers/mcu-programming-options

.. _xG27 Dev Kit User's Guide: https://www.silabs.com/documents/public/user-guides/ug554-brd2602a-user-guide.pdf