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boards/silabs/explorer_kits/xg26/doc/xg26_ek2709a.rst

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.. zephyr:board:: xg26_ek2709a

Overview

The EFR32xG26 Explorer Kit_ is a small form factor development and evaluation platform based on the EFR32MG26 SoC_. The Explorer Kit is focused on rapid prototyping and concept creating of IoT applications for 2.4 GHz wireless protocols including Bluetooth LE, Bluetooth mesh, Zigbee, Thread, and Matter.

.. _EFR32xG26 Explorer Kit: https://www.silabs.com/development-tools/wireless/efr32xg26-explorer-kit

.. _EFR32MG26 SoC: https://www.silabs.com/wireless/zigbee/efr32mg26-series-2-socs

Hardware

  • EFR32MG26B510F3200IM48 SoC
  • CPU core: ARM Cortex®-M33 with FPU
  • Flash memory: 3200 kB
  • RAM: 512 kB
  • Transmit power: up to +10 dBm
  • Operation frequency: 2.4 GHz
  • Crystals for LFXO (32.768 kHz) and HFXO (39 MHz) on the board.

For more information about the EFR32MG26 SoC and Explorer Kit, refer to these documents:

  • EFR32MG26 Datasheet_
  • EFR32xG26 Reference Manual_
  • xG26-EK2709A User Guide_

.. _EFR32MG26 Datasheet: https://www.silabs.com/documents/public/data-sheets/efr32mg26-datasheet.pdf

.. _EFR32xG26 Reference Manual: https://www.silabs.com/documents/public/reference-manuals/efr32xg26-rm.pdf

.. _xG26-EK2709A User Guide: https://www.silabs.com/documents/public/user-guides/ug594-brd2709a-user-guide.pdf

Supported Features

.. zephyr:board-supported-hw::

System Clock

The EFR32MG26 SoC is configured to use the HFRCODPLL oscillator at 78 MHz as the system clock, locked to the 39 MHz crystal oscillator on the board.

Serial Port

The EFR32MG26 SoC has 3 USARTs and 4 EUSARTs. USART0 is connected to the board controller and is used for the console.

Programming and Debugging

.. zephyr:board-supported-runners::

Flashing

Connect the Explorer Kit to your host computer using the USB port.

Here is an example for the :zephyr:code-sample:hello_world application.

.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: xg26_ek2709a :goals: flash

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 see the following message in the terminal:

.. code-block:: console

Hello World! xg26_ek2709a

Bluetooth

To use Bluetooth functionality, run the command below to retrieve necessary binary blobs from the Silicon Labs HAL repository.

.. code-block:: console

west blobs fetch hal_silabs

Then build the Zephyr kernel and a Bluetooth sample with the following command. The :zephyr:code-sample:bluetooth_observer sample application is used in this example.

.. zephyr-app-commands:: :zephyr-app: samples/bluetooth/observer :board: xg26_ek2709a :goals: build