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boards/silabs/radio_boards/xg24/doc/xg24_rb4186c.rst

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.. zephyr:board:: xg24_rb4186c

Overview

The EFR32xG24 +10 dBm Radio Board_ is the radio board delivered with the EFR32xG24 Pro Kit +10 dBm_, and is also available standalone. It contains a Wireless System-On-Chip from the EFR32MG24 family built on an ARM Cortex®-M33 processor with excellent low power capabilities.

The radio board plugs into the Wireless Pro Kit Mainboard BRD4002A and is supported in Zephyr as one of several :ref:silabs_radio_boards.

.. _EFR32xG24 +10 dBm Radio Board: https://www.silabs.com/development-tools/wireless/xg24-rb4186c-efr32xg24-wireless-gecko-radio-board .. _EFR32xG24 Pro Kit +10 dBm: https://www.silabs.com/development-tools/wireless/efr32xg24-pro-kit-10-dbm

Hardware

  • EFR32MG24B210F1536IM48 Mighty Gecko SoC
  • CPU core: ARM Cortex®-M33 with FPU
  • Flash memory: 1536 kB
  • RAM: 256 kB
  • Transmit power: up to +10 dBm
  • Operation frequency: 2.4 GHz
  • Crystals for LFXO (32.768 kHz) and HFXO (39 MHz).

For more information about the EFR32MG24 SoC and BRD4186C board, refer to these documents:

  • EFR32MG24 Website_
  • EFR32MG24 Datasheet_
  • EFR32xG24 Reference Manual_
  • BRD4186C User Guide_

.. _EFR32MG24 Website: https://www.silabs.com/wireless/zigbee/efr32mg24-series-2-socs .. _EFR32MG24 Datasheet: https://www.silabs.com/documents/public/data-sheets/efr32mg24-datasheet.pdf .. _EFR32xG24 Reference Manual: https://www.silabs.com/documents/public/reference-manuals/efr32xg24-rm.pdf .. _BRD4186C User Guide: https://www.silabs.com/documents/public/reference-manuals/brd4186c-rm.pdf

Supported Features

.. zephyr:board-supported-hw::

System Clock

The EFR32MG24 SoC is configured to use the HFRCODPLL oscillator at 78 MHz as the system clock, locked to the 39 MHz external crystal oscillator on the board.

Serial Port

The EFR32MG24 SoC has one USART and two EUSARTs. USART0 is connected to the board controller and is used for the console.

Programming and Debugging

.. zephyr:board-supported-runners::

Flashing

Connect the BRD4002A board with a mounted BRD4186C radio board 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: xg24_rb4186c :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! xg24_rb4186c

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: xg24_rb4186c :goals: build