..  Copyright (c) 2014-present PlatformIO <contact@platformio.org>
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
       http://www.apache.org/licenses/LICENSE-2.0
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.

.. _board_siliconlabsefm32_efm32wg_stk3800:

EFM32WG-STK3800 Wonder Gecko
============================

.. contents::

Hardware
--------

Platform :ref:`platform_siliconlabsefm32`: Silicon Labs EFM32 Gecko 32-bit microcontroller (MCU) family includes devices that offer flash memory configurations up to 256 kB, 32 kB of RAM and CPU speeds up to 48 MHz. Based on the powerful ARM Cortex-M core, the Gecko family features innovative low energy techniques, short wake-up time from energy saving modes and a wide selection of peripherals, making it ideal for battery operated applications and other systems requiring high performance and low-energy consumption.

.. list-table::

  * - **Microcontroller**
    - EFM32WG990F256
  * - **Frequency**
    - 48MHz
  * - **Flash**
    - 256KB
  * - **RAM**
    - 32KB
  * - **Vendor**
    - `Silicon Labs <https://www.silabs.com/products/development-tools/mcu/32-bit/efm32-wonder-gecko-starter-kit?utm_source=platformio.org&utm_medium=docs>`__


Configuration
-------------

Please use ``efm32wg_stk3800`` ID for :ref:`projectconf_env_board` option in :ref:`projectconf`:

.. code-block:: ini

  [env:efm32wg_stk3800]
  platform = siliconlabsefm32
  board = efm32wg_stk3800

You can override default EFM32WG-STK3800 Wonder Gecko settings per build environment using
``board_***`` option, where ``***`` is a JSON object path from
board manifest `efm32wg_stk3800.json <https://github.com/platformio/platform-siliconlabsefm32/blob/master/boards/efm32wg_stk3800.json>`_. For example,
``board_build.mcu``, ``board_build.f_cpu``, etc.

.. code-block:: ini

  [env:efm32wg_stk3800]
  platform = siliconlabsefm32
  board = efm32wg_stk3800

  ; change microcontroller
  board_build.mcu = efm32wg990f256

  ; change MCU frequency
  board_build.f_cpu = 48000000L


Uploading
---------
EFM32WG-STK3800 Wonder Gecko supports the next uploading protocols:

* ``blackmagic``
* ``jlink``
* ``mbed``

Default protocol is ``mbed``

You can change upload protocol using :ref:`projectconf_upload_protocol` option:

.. code-block:: ini

  [env:efm32wg_stk3800]
  platform = siliconlabsefm32
  board = efm32wg_stk3800

  upload_protocol = mbed

Debugging
---------

:ref:`piodebug` - "1-click" solution for debugging with a zero configuration.

.. warning::
    You will need to install debug tool drivers depending on your system.
    Please click on compatible debug tool below for the further
    instructions and configuration information.

You can switch between debugging :ref:`debugging_tools` using
:ref:`projectconf_debug_tool` option in :ref:`projectconf`.

EFM32WG-STK3800 Wonder Gecko has on-board debug probe and **IS READY** for debugging. You don't need to use/buy external debug probe.

.. list-table::
  :header-rows:  1

  * - Compatible Tools
    - On-board
    - Default
  * - :ref:`debugging_tool_blackmagic`
    - 
    - 
  * - :ref:`debugging_tool_jlink`
    - Yes
    - Yes

Frameworks
----------
.. list-table::
    :header-rows:  1

    * - Name
      - Description

    * - :ref:`framework_mbed`
      - The mbed framework The mbed SDK has been designed to provide enough hardware abstraction to be intuitive and concise, yet powerful enough to build complex projects. It is built on the low-level ARM CMSIS APIs, allowing you to code down to the metal if needed. In addition to RTOS, USB and Networking libraries, a cookbook of hundreds of reusable peripheral and module libraries have been built on top of the SDK by the mbed Developer Community.

    * - :ref:`framework_zephyr`
      - The Zephyr Project is a scalable real-time operating system (RTOS) supporting multiple hardware architectures, optimized for resource constrained devices, and built with safety and security in mind.