.. zephyr:board:: xgm240_rb4316a

Overview

The xGM240P +10 dBm Module Radio Board_ for the xGM240P module 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.

.. _xGM240P +10 dBm Module Radio Board: https://www.silabs.com/development-tools/wireless/xgm240-rb4316a-xgm240p-module-radio-board

Hardware

MGM240PB32VNA module based on EFR32MG24
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
Crystal for LFXO (32.768 kHz) on the board and HFXO (39 MHz) in the module.

For more information about the MGM240P module, EFR32MG24 SoC and BRD4316A board, refer to these documents:

MGM240 Modules Website_
MGM240P Datasheet_
EFR32xG24 Reference Manual_
BRD4316A User Guide_

.. _MGM240 Modules Website: https://www.silabs.com/wireless/zigbee/efr32mg24-series-2-modules .. _MGM240P Datasheet: https://www.silabs.com/documents/public/data-sheets/mgm240p-datasheet.pdf .. _EFR32xG24 Reference Manual: https://www.silabs.com/documents/public/reference-manuals/efr32xg24-rm.pdf .. _BRD4316A User Guide: https://www.silabs.com/documents/public/user-guides/ug528-brd4316a-user-guide.pdf

Supported Features

.. zephyr:board-supported-hw::

System Clock

The MGM240P module 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 MGM240P module has one USART and two EUSARTs. USART0 is connected to the board controller and is used for the console.

Buttons and LEDs

This board has two buttons and two LEDs that share GPIO pins. If an application wants to use both a button and a LED with the same number (e.g. button 0 and LED 0), it needs to time multiplex the two functions.

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: xgm240_rb4316a :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! xgm240_rb4316a

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: xgm240_rb4316a :goals: build