..  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.

.. _framework_zephyr:

Zephyr
======

:Configuration:
  :ref:`projectconf_env_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.

For more detailed information please visit `vendor site <https://www.zephyrproject.org/?utm_source=platformio.org&utm_medium=docs>`_.


.. contents:: Contents
    :local:
    :depth: 1
.. include:: zephyr_extra.rst

Debugging
---------

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

.. contents::
    :local:


Tools & Debug Probes
~~~~~~~~~~~~~~~~~~~~

Supported debugging tools are listed in "Debug" column. For more detailed
information, please scroll table by horizontal.
You can switch between debugging :ref:`debugging_tools` using
:ref:`projectconf_debug_tool` option in :ref:`projectconf`.

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


On-Board Debug Tools
^^^^^^^^^^^^^^^^^^^^

Boards listed below have on-board debug probe and **ARE READY** for debugging!
You do not need to use/buy external debug probe.


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

    * - Name
      - Platform
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_ststm32_disco_f412zg`
      - :ref:`platform_ststm32`
      - STM32F412ZGT6
      - 100MHz
      - 1MB
      - 256KB
    * - :ref:`board_ststm32_disco_f723ie`
      - :ref:`platform_ststm32`
      - STM32F723IEK6
      - 216MHz
      - 512KB
      - 192KB
    * - :ref:`board_ststm32_b96b_f446ve`
      - :ref:`platform_ststm32`
      - STM32F446VET6
      - 168MHz
      - 512KB
      - 128KB
    * - :ref:`board_atmelsam_zero`
      - :ref:`platform_atmelsam`
      - SAMD21G18A
      - 48MHz
      - 256KB
      - 32KB
    * - :ref:`board_atmelsam_samr21_xpro`
      - :ref:`platform_atmelsam`
      - SAMR21G18A
      - 48MHz
      - 256KB
      - 32KB
    * - :ref:`board_atmelsam_samd21_xpro`
      - :ref:`platform_atmelsam`
      - SAMD21J18A
      - 48MHz
      - 256KB
      - 32KB
    * - :ref:`board_nordicnrf51_bbcmicrobit`
      - :ref:`platform_nordicnrf51`
      - NRF51822
      - 16MHz
      - 256KB
      - 16KB
    * - :ref:`board_nordicnrf52_laird_bl652_dvk`
      - :ref:`platform_nordicnrf52`
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_nordicnrf52_laird_bl654_dvk`
      - :ref:`platform_nordicnrf52`
      - NRF52840
      - 64MHz
      - 1MB
      - 256KB
    * - :ref:`board_siliconlabsefm32_efm32wg_stk3800`
      - :ref:`platform_siliconlabsefm32`
      - EFM32WG990F256
      - 48MHz
      - 256KB
      - 32KB
    * - :ref:`board_nordicnrf52_electronut_blip`
      - :ref:`platform_nordicnrf52`
      - NRF52840
      - 64MHz
      - 1MB
      - 256KB
    * - :ref:`board_nordicnrf52_electronut_papyr`
      - :ref:`platform_nordicnrf52`
      - NRF52840
      - 64MHz
      - 1MB
      - 256KB
    * - :ref:`board_freescalekinetis_frdm_k22f`
      - :ref:`platform_freescalekinetis`
      - MK22FN512VLH12
      - 120MHz
      - 512KB
      - 128KB
    * - :ref:`board_freescalekinetis_frdm_k64f`
      - :ref:`platform_freescalekinetis`
      - MK64FN1M0VLL12
      - 120MHz
      - 1MB
      - 256KB
    * - :ref:`board_freescalekinetis_frdm_k82f`
      - :ref:`platform_freescalekinetis`
      - MK82FN256VLL15
      - 150MHz
      - 256KB
      - 256KB
    * - :ref:`board_freescalekinetis_frdm_kl25z`
      - :ref:`platform_freescalekinetis`
      - MKL25Z128VLK4
      - 48MHz
      - 128KB
      - 16KB
    * - :ref:`board_freescalekinetis_frdm_kw41z`
      - :ref:`platform_freescalekinetis`
      - MKW41Z512VHT4
      - 48MHz
      - 512KB
      - 128KB
    * - :ref:`board_sifive_hifive1`
      - :ref:`platform_sifive`
      - FE310
      - 320MHz
      - 16MB
      - 16KB
    * - :ref:`board_sifive_hifive1-revb`
      - :ref:`platform_sifive`
      - FE310
      - 320MHz
      - 16MB
      - 16KB
    * - :ref:`board_nordicnrf52_nrf52832_mdk`
      - :ref:`platform_nordicnrf52`
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_nordicnrf52_nrf52840_mdk`
      - :ref:`platform_nordicnrf52`
      - NRF52840
      - 64MHz
      - 1MB
      - 256KB
    * - :ref:`board_nxplpc_lpc54114`
      - :ref:`platform_nxplpc`
      - LPC54114J256BD64
      - 100MHz
      - 256KB
      - 192KB
    * - :ref:`board_nxpimxrt_mimxrt1010_evk`
      - :ref:`platform_nxpimxrt`
      - MIMXRT1011DAE5A
      - 500MHz
      - 64KB
      - 128KB
    * - :ref:`board_nxpimxrt_mimxrt1015_evk`
      - :ref:`platform_nxpimxrt`
      - MIMXRT1015DAF5A
      - 500MHz
      - 96KB
      - 128KB
    * - :ref:`board_nxpimxrt_mimxrt1020_evk`
      - :ref:`platform_nxpimxrt`
      - MIMXRT1021DAG5A
      - 500MHz
      - 64MB
      - 256MB
    * - :ref:`board_nxpimxrt_mimxrt1050_evk`
      - :ref:`platform_nxpimxrt`
      - MIMXRT1052DVL6B
      - 600MHz
      - 64MB
      - 512KB
    * - :ref:`board_nxpimxrt_mimxrt1060_evk`
      - :ref:`platform_nxpimxrt`
      - MIMXRT1062DVL6A
      - 600MHz
      - 64MB
      - 1MB
    * - :ref:`board_nxpimxrt_mimxrt1064_evk`
      - :ref:`platform_nxpimxrt`
      - MIMXRT1064DVL6A
      - 600MHz
      - 4MB
      - 1MB
    * - :ref:`board_nordicnrf51_nrf51_dongle`
      - :ref:`platform_nordicnrf51`
      - NRF51822
      - 32MHz
      - 256KB
      - 32KB
    * - :ref:`board_nordicnrf51_nrf51_dk`
      - :ref:`platform_nordicnrf51`
      - NRF51822
      - 32MHz
      - 256KB
      - 32KB
    * - :ref:`board_nordicnrf52_nrf52_dk`
      - :ref:`platform_nordicnrf52`
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_nordicnrf52_nrf52840_dk`
      - :ref:`platform_nordicnrf52`
      - NRF52840
      - 64MHz
      - 1MB
      - 256KB
    * - :ref:`board_nordicnrf51_redBearLabBLENano`
      - :ref:`platform_nordicnrf51`
      - NRF51822
      - 16MHz
      - 256KB
      - 32KB
    * - :ref:`board_nordicnrf52_redbear_blenano2`
      - :ref:`platform_nordicnrf52`
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_siliconlabsefm32_efm32hg_stk3400`
      - :ref:`platform_siliconlabsefm32`
      - EFM32HG322F64
      - 25MHz
      - 64KB
      - 8KB
    * - :ref:`board_ststm32_disco_f411ve`
      - :ref:`platform_ststm32`
      - STM32F411VET6
      - 100MHz
      - 512KB
      - 128KB
    * - :ref:`board_ststm32_disco_f429zi`
      - :ref:`platform_ststm32`
      - STM32F429ZIT6
      - 180MHz
      - 2MB
      - 256KB
    * - :ref:`board_ststm32_disco_f469ni`
      - :ref:`platform_ststm32`
      - STM32F469NIH6
      - 180MHz
      - 1MB
      - 384KB
    * - :ref:`board_ststm32_disco_f746ng`
      - :ref:`platform_ststm32`
      - STM32F746NGH6
      - 216MHz
      - 1MB
      - 320KB
    * - :ref:`board_ststm32_disco_f769ni`
      - :ref:`platform_ststm32`
      - STM32F769NIH6
      - 216MHz
      - 1MB
      - 512KB
    * - :ref:`board_ststm32_disco_l476vg`
      - :ref:`platform_ststm32`
      - STM32L476VGT6
      - 80MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_disco_l496ag`
      - :ref:`platform_ststm32`
      - STM32L496AGI6
      - 80MHz
      - 1MB
      - 320KB
    * - :ref:`board_ststm32_disco_l475vg_iot01a`
      - :ref:`platform_ststm32`
      - STM32L475VGT6
      - 80MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_disco_l072cz_lrwan1`
      - :ref:`platform_ststm32`
      - STM32L072CZ
      - 32MHz
      - 192KB
      - 20KB
    * - :ref:`board_ststm32_disco_f072rb`
      - :ref:`platform_ststm32`
      - STM32F072RBT6
      - 48MHz
      - 128KB
      - 16KB
    * - :ref:`board_ststm32_nucleo_f030r8`
      - :ref:`platform_ststm32`
      - STM32F030R8T6
      - 48MHz
      - 64KB
      - 8KB
    * - :ref:`board_ststm32_nucleo_f070rb`
      - :ref:`platform_ststm32`
      - STM32F070RBT6
      - 48MHz
      - 128KB
      - 16KB
    * - :ref:`board_ststm32_nucleo_f091rc`
      - :ref:`platform_ststm32`
      - STM32F091RCT6
      - 48MHz
      - 256KB
      - 32KB
    * - :ref:`board_ststm32_nucleo_f103rb`
      - :ref:`platform_ststm32`
      - STM32F103RBT6
      - 72MHz
      - 128KB
      - 20KB
    * - :ref:`board_ststm32_nucleo_f207zg`
      - :ref:`platform_ststm32`
      - STM32F207ZGT6
      - 120MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_nucleo_f302r8`
      - :ref:`platform_ststm32`
      - STM32F302R8T6
      - 72MHz
      - 64KB
      - 16KB
    * - :ref:`board_ststm32_nucleo_f334r8`
      - :ref:`platform_ststm32`
      - STM32F334R8T6
      - 72MHz
      - 64KB
      - 16KB
    * - :ref:`board_ststm32_nucleo_f401re`
      - :ref:`platform_ststm32`
      - STM32F401RET6
      - 84MHz
      - 512KB
      - 96KB
    * - :ref:`board_ststm32_nucleo_f411re`
      - :ref:`platform_ststm32`
      - STM32F411RET6
      - 100MHz
      - 512KB
      - 128KB
    * - :ref:`board_ststm32_nucleo_f412zg`
      - :ref:`platform_ststm32`
      - STM32F412ZGT6
      - 100MHz
      - 1MB
      - 256KB
    * - :ref:`board_ststm32_nucleo_f413zh`
      - :ref:`platform_ststm32`
      - STM32F413ZHT6
      - 100MHz
      - 512KB
      - 128KB
    * - :ref:`board_ststm32_nucleo_f429zi`
      - :ref:`platform_ststm32`
      - STM32F429ZIT6
      - 180MHz
      - 2MB
      - 256KB
    * - :ref:`board_ststm32_nucleo_f446re`
      - :ref:`platform_ststm32`
      - STM32F446RET6
      - 180MHz
      - 512KB
      - 128KB
    * - :ref:`board_ststm32_nucleo_f746zg`
      - :ref:`platform_ststm32`
      - STM32F746ZGT6
      - 216MHz
      - 1MB
      - 320KB
    * - :ref:`board_ststm32_nucleo_f756zg`
      - :ref:`platform_ststm32`
      - STM32F756ZG
      - 216MHz
      - 1MB
      - 320KB
    * - :ref:`board_ststm32_nucleo_f767zi`
      - :ref:`platform_ststm32`
      - STM32F767ZIT6
      - 216MHz
      - 2MB
      - 512KB
    * - :ref:`board_ststm32_nucleo_l053r8`
      - :ref:`platform_ststm32`
      - STM32L053R8T6
      - 32MHz
      - 64KB
      - 8KB
    * - :ref:`board_ststm32_nucleo_l073rz`
      - :ref:`platform_ststm32`
      - STM32L073RZ
      - 32MHz
      - 192KB
      - 20KB
    * - :ref:`board_ststm32_nucleo_l432kc`
      - :ref:`platform_ststm32`
      - STM32L432KCU6
      - 80MHz
      - 256KB
      - 64KB
    * - :ref:`board_ststm32_nucleo_l476rg`
      - :ref:`platform_ststm32`
      - STM32L476RGT6
      - 80MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_nucleo_l496zg`
      - :ref:`platform_ststm32`
      - STM32L496ZGT6
      - 80MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_nucleo_l4r5zi`
      - :ref:`platform_ststm32`
      - STM32L4R5ZIT6
      - 120MHz
      - 2MB
      - 640KB
    * - :ref:`board_ststm32_disco_f051r8`
      - :ref:`platform_ststm32`
      - STM32F051R8T6
      - 48MHz
      - 64KB
      - 8KB
    * - :ref:`board_ststm32_disco_f303vc`
      - :ref:`platform_ststm32`
      - STM32F303VCT6
      - 72MHz
      - 256KB
      - 48KB
    * - :ref:`board_ststm32_disco_f407vg`
      - :ref:`platform_ststm32`
      - STM32F407VGT6
      - 168MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_disco_h743xi`
      - :ref:`platform_ststm32`
      - STM32H747XIH6
      - 400MHz
      - 2MB
      - 512KB
    * - :ref:`board_sifive_sparkfun_redboard_v`
      - :ref:`platform_sifive`
      - FE310
      - 320MHz
      - 16MB
      - 16KB
    * - :ref:`board_sifive_sparkfun_thing_plus_v`
      - :ref:`platform_sifive`
      - FE310
      - 320MHz
      - 16MB
      - 16KB
    * - :ref:`board_nordicnrf51_vbluno51`
      - :ref:`platform_nordicnrf51`
      - NRF51822
      - 16MHz
      - 128KB
      - 32KB
    * - :ref:`board_nordicnrf52_vbluno52`
      - :ref:`platform_nordicnrf52`
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB


External Debug Tools
^^^^^^^^^^^^^^^^^^^^

Boards listed below are compatible with :ref:`piodebug` but **DEPEND ON**
external debug probe. They **ARE NOT READY** for debugging.
Please click on board name for the further details.


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

    * - Name
      - Platform
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_ststm32_b96b_argonkey`
      - :ref:`platform_ststm32`
      - STM32F412CG
      - 100MHz
      - 1MB
      - 256KB
    * - :ref:`board_ststm32_b96b_neonkey`
      - :ref:`platform_ststm32`
      - STM32F411CE
      - 100MHz
      - 512KB
      - 128KB
    * - :ref:`board_nordicnrf52_96b_nitrogen`
      - :ref:`platform_nordicnrf52`
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_nordicnrf52_adafruit_feather_nrf52832`
      - :ref:`platform_nordicnrf52`
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_atmelsam_adafruit_feather_m0`
      - :ref:`platform_atmelsam`
      - SAMD21G18A
      - 48MHz
      - 256KB
      - 32KB
    * - :ref:`board_atmelsam_adafruit_trinket_m0`
      - :ref:`platform_atmelsam`
      - SAMD21E18A
      - 48MHz
      - 256KB
      - 32KB
    * - :ref:`board_atmelsam_due`
      - :ref:`platform_atmelsam`
      - AT91SAM3X8E
      - 84MHz
      - 512KB
      - 96KB
    * - :ref:`board_ststm32_blackpill_f103c8`
      - :ref:`platform_ststm32`
      - STM32F103C8T6
      - 72MHz
      - 64KB
      - 20KB
    * - :ref:`board_ststm32_blackpill_f103c8_128`
      - :ref:`platform_ststm32`
      - STM32F103C8T6
      - 72MHz
      - 128KB
      - 20KB
    * - :ref:`board_ststm32_bluepill_f103c8`
      - :ref:`platform_ststm32`
      - STM32F103C8T6
      - 72MHz
      - 64KB
      - 20KB
    * - :ref:`board_ststm32_bluepill_f103c8_128k`
      - :ref:`platform_ststm32`
      - STM32F103C8T6
      - 72MHz
      - 128KB
      - 20KB
    * - :ref:`board_freescalekinetis_frdm_kw24d`
      - :ref:`platform_freescalekinetis`
      - MKW24D512
      - 50MHz
      - 512KB
      - 64KB
    * - :ref:`board_freescalekinetis_hexiwear`
      - :ref:`platform_freescalekinetis`
      - MK64FN1M0VDC12
      - 120MHz
      - 1MB
      - 256KB
    * - :ref:`board_nordicnrf52_holyiot_yj16019`
      - :ref:`platform_nordicnrf52`
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_nordicnrf52_thingy_52`
      - :ref:`platform_nordicnrf52`
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_ststm32_nucleo_g071rb`
      - :ref:`platform_ststm32`
      - STM32G071RBT6
      - 64MHz
      - 128KB
      - 36KB
    * - :ref:`board_ststm32_nucleo_g431rb`
      - :ref:`platform_ststm32`
      - STM32G431RBT6
      - 170MHz
      - 128KB
      - 32KB
    * - :ref:`board_ststm32_nucleo_g474re`
      - :ref:`platform_ststm32`
      - STM32G474RET6
      - 170MHz
      - 512KB
      - 128KB
    * - :ref:`board_ststm32_olimexino`
      - :ref:`platform_ststm32`
      - STM32F103RBT6
      - 72MHz
      - 128KB
      - 20KB
    * - :ref:`board_ststm32_olimex_p405`
      - :ref:`platform_ststm32`
      - STM32F405RGT6
      - 168MHz
      - 1MB
      - 192KB
    * - :ref:`board_nordicnrf52_particle_argon`
      - :ref:`platform_nordicnrf52`
      - NRF52840
      - 64MHz
      - 796KB
      - 243KB
    * - :ref:`board_nordicnrf52_particle_boron`
      - :ref:`platform_nordicnrf52`
      - NRF52840
      - 64MHz
      - 796KB
      - 243KB
    * - :ref:`board_nordicnrf52_particle_xenon`
      - :ref:`platform_nordicnrf52`
      - NRF52840
      - 64MHz
      - 796KB
      - 243KB
    * - :ref:`board_ststm32_steval_fcu001v1`
      - :ref:`platform_ststm32`
      - STM32F401CCU6
      - 84MHz
      - 256KB
      - 64KB
    * - :ref:`board_ststm32_olimex_e407`
      - :ref:`platform_ststm32`
      - STM32F407ZGT6
      - 168MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_olimex_h407`
      - :ref:`platform_ststm32`
      - STM32F407ZGT6
      - 168MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_eval_f107vc`
      - :ref:`platform_ststm32`
      - STM32F107VCT6
      - 72MHz
      - 256KB
      - 64KB
    * - :ref:`board_ststm32_eval_f373vc`
      - :ref:`platform_ststm32`
      - STM32F373VCT6
      - 72MHz
      - 256KB
      - 32KB
    * - :ref:`board_ststm32_eval_f072vb`
      - :ref:`platform_ststm32`
      - STM32F072VBT6
      - 48MHz
      - 128KB
      - 16KB
    * - :ref:`board_nordicnrf51_waveshare_ble400`
      - :ref:`platform_nordicnrf51`
      - NRF51822
      - 32MHz
      - 256KB
      - 32KB


Examples
--------

* `Zephyr for Atmel SAM <https://github.com/platformio/platform-atmelsam/tree/master/examples?utm_source=platformio.org&utm_medium=docs>`_
* `Zephyr for Freescale Kinetis <https://github.com/platformio/platform-freescalekinetis/tree/master/examples?utm_source=platformio.org&utm_medium=docs>`_
* `Zephyr for Nordic nRF51 <https://github.com/platformio/platform-nordicnrf51/tree/master/examples?utm_source=platformio.org&utm_medium=docs>`_
* `Zephyr for Nordic nRF52 <https://github.com/platformio/platform-nordicnrf52/tree/master/examples?utm_source=platformio.org&utm_medium=docs>`_
* `Zephyr for NXP i.MX RT <https://github.com/platformio/platform-nxpimxrt/tree/master/examples?utm_source=platformio.org&utm_medium=docs>`_
* `Zephyr for NXP LPC <https://github.com/platformio/platform-nxplpc/tree/master/examples?utm_source=platformio.org&utm_medium=docs>`_
* `Zephyr for SiFive <https://github.com/platformio/platform-sifive/tree/master/examples?utm_source=platformio.org&utm_medium=docs>`_
* `Zephyr for Silicon Labs EFM32 <https://github.com/platformio/platform-siliconlabsefm32/tree/master/examples?utm_source=platformio.org&utm_medium=docs>`_
* `Zephyr for ST STM32 <https://github.com/platformio/platform-ststm32/tree/master/examples?utm_source=platformio.org&utm_medium=docs>`_

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

    * - Name
      - Description

    * - :ref:`platform_atmelsam`
      - Atmel | SMART offers Flash- based ARM products based on the ARM Cortex-M0+, Cortex-M3 and Cortex-M4 architectures, ranging from 8KB to 2MB of Flash including a rich peripheral and feature mix.

    * - :ref:`platform_freescalekinetis`
      - Freescale Kinetis Microcontrollers is family of multiple hardware- and software-compatible ARM Cortex-M0+, Cortex-M4 and Cortex-M7-based MCU series. Kinetis MCUs offer exceptional low-power performance, scalability and feature integration.

    * - :ref:`platform_nordicnrf51`
      - The Nordic nRF51 Series is a family of highly flexible, multi-protocol, system-on-chip (SoC) devices for ultra-low power wireless applications. nRF51 Series devices support a range of protocol stacks including Bluetooth Smart (previously called Bluetooth low energy), ANT and proprietary 2.4GHz protocols such as Gazell.

    * - :ref:`platform_nordicnrf52`
      - The nRF52 Series are built for speed to carry out increasingly complex tasks in the shortest possible time and return to sleep, conserving precious battery power. They have a Cortex-M4F processor and are the most capable Bluetooth Smart SoCs on the market.

    * - :ref:`platform_nxpimxrt`
      - The i.MX RT series of crossover processors features the Arm Cortex-M core, real-time functionality and MCU usability at a cost-effective price.

    * - :ref:`platform_nxplpc`
      - The NXP LPC is a family of 32-bit microcontroller integrated circuits by NXP Semiconductors. The LPC chips are grouped into related series that are based around the same 32-bit ARM processor core, such as the Cortex-M4F, Cortex-M3, Cortex-M0+, or Cortex-M0. Internally, each microcontroller consists of the processor core, static RAM memory, flash memory, debugging interface, and various peripherals.

    * - :ref:`platform_sifive`
      - SiFive brings the power of open source and software automation to the semiconductor industry, making it possible to develop new hardware faster and more affordably than ever before. 

    * - :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.

    * - :ref:`platform_ststm32`
      - The STM32 family of 32-bit Flash MCUs based on the ARM Cortex-M processor is designed to offer new degrees of freedom to MCU users. It offers a 32-bit product range that combines very high performance, real-time capabilities, digital signal processing, and low-power, low-voltage operation, while maintaining full integration and ease of development.

Boards
------

.. note::
    * You can list pre-configured boards by :ref:`cmd_boards` command or
      `PlatformIO Boards Explorer <https://platformio.org/boards>`_
    * For more detailed ``board`` information please scroll the tables below by horizontally.

96Boards
~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_ststm32_b96b_argonkey`
      - :ref:`platform_ststm32`
      - External
      - STM32F412CG
      - 100MHz
      - 1MB
      - 256KB
    * - :ref:`board_ststm32_b96b_f446ve`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F446VET6
      - 168MHz
      - 512KB
      - 128KB
    * - :ref:`board_ststm32_b96b_neonkey`
      - :ref:`platform_ststm32`
      - External
      - STM32F411CE
      - 100MHz
      - 512KB
      - 128KB
    * - :ref:`board_nordicnrf52_96b_nitrogen`
      - :ref:`platform_nordicnrf52`
      - External
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB

Adafruit
~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nordicnrf52_adafruit_feather_nrf52832`
      - :ref:`platform_nordicnrf52`
      - External
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_atmelsam_adafruit_feather_m0`
      - :ref:`platform_atmelsam`
      - External
      - SAMD21G18A
      - 48MHz
      - 256KB
      - 32KB
    * - :ref:`board_atmelsam_adafruit_trinket_m0`
      - :ref:`platform_atmelsam`
      - External
      - SAMD21E18A
      - 48MHz
      - 256KB
      - 32KB

Arduino
~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_atmelsam_due`
      - :ref:`platform_atmelsam`
      - External
      - AT91SAM3X8E
      - 84MHz
      - 512KB
      - 96KB
    * - :ref:`board_atmelsam_zero`
      - :ref:`platform_atmelsam`
      - On-board
      - SAMD21G18A
      - 48MHz
      - 256KB
      - 32KB

Atmel
~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_atmelsam_samr21_xpro`
      - :ref:`platform_atmelsam`
      - On-board
      - SAMR21G18A
      - 48MHz
      - 256KB
      - 32KB
    * - :ref:`board_atmelsam_samd21_xpro`
      - :ref:`platform_atmelsam`
      - On-board
      - SAMD21J18A
      - 48MHz
      - 256KB
      - 32KB

BBC
~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nordicnrf51_bbcmicrobit`
      - :ref:`platform_nordicnrf51`
      - On-board
      - NRF51822
      - 16MHz
      - 256KB
      - 16KB

ElectronutLabs
~~~~~~~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nordicnrf52_electronut_blip`
      - :ref:`platform_nordicnrf52`
      - On-board
      - NRF52840
      - 64MHz
      - 1MB
      - 256KB
    * - :ref:`board_nordicnrf52_electronut_papyr`
      - :ref:`platform_nordicnrf52`
      - On-board
      - NRF52840
      - 64MHz
      - 1MB
      - 256KB

Freescale
~~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_freescalekinetis_frdm_k22f`
      - :ref:`platform_freescalekinetis`
      - On-board
      - MK22FN512VLH12
      - 120MHz
      - 512KB
      - 128KB
    * - :ref:`board_freescalekinetis_frdm_k64f`
      - :ref:`platform_freescalekinetis`
      - On-board
      - MK64FN1M0VLL12
      - 120MHz
      - 1MB
      - 256KB
    * - :ref:`board_freescalekinetis_frdm_k82f`
      - :ref:`platform_freescalekinetis`
      - On-board
      - MK82FN256VLL15
      - 150MHz
      - 256KB
      - 256KB
    * - :ref:`board_freescalekinetis_frdm_kl25z`
      - :ref:`platform_freescalekinetis`
      - On-board
      - MKL25Z128VLK4
      - 48MHz
      - 128KB
      - 16KB
    * - :ref:`board_freescalekinetis_frdm_kw24d`
      - :ref:`platform_freescalekinetis`
      - External
      - MKW24D512
      - 50MHz
      - 512KB
      - 64KB
    * - :ref:`board_freescalekinetis_frdm_kw41z`
      - :ref:`platform_freescalekinetis`
      - On-board
      - MKW41Z512VHT4
      - 48MHz
      - 512KB
      - 128KB

Generic
~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_ststm32_blackpill_f103c8`
      - :ref:`platform_ststm32`
      - External
      - STM32F103C8T6
      - 72MHz
      - 64KB
      - 20KB
    * - :ref:`board_ststm32_blackpill_f103c8_128`
      - :ref:`platform_ststm32`
      - External
      - STM32F103C8T6
      - 72MHz
      - 128KB
      - 20KB
    * - :ref:`board_ststm32_bluepill_f103c8`
      - :ref:`platform_ststm32`
      - External
      - STM32F103C8T6
      - 72MHz
      - 64KB
      - 20KB
    * - :ref:`board_ststm32_bluepill_f103c8_128k`
      - :ref:`platform_ststm32`
      - External
      - STM32F103C8T6
      - 72MHz
      - 128KB
      - 20KB

Holyiot
~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nordicnrf52_holyiot_yj16019`
      - :ref:`platform_nordicnrf52`
      - External
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB

Laird Connectivity
~~~~~~~~~~~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nordicnrf52_laird_bl652_dvk`
      - :ref:`platform_nordicnrf52`
      - On-board
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_nordicnrf52_laird_bl654_dvk`
      - :ref:`platform_nordicnrf52`
      - On-board
      - NRF52840
      - 64MHz
      - 1MB
      - 256KB

Makerdiary
~~~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nordicnrf52_nrf52832_mdk`
      - :ref:`platform_nordicnrf52`
      - On-board
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_nordicnrf52_nrf52840_mdk`
      - :ref:`platform_nordicnrf52`
      - On-board
      - NRF52840
      - 64MHz
      - 1MB
      - 256KB

MikroElektronika
~~~~~~~~~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_freescalekinetis_hexiwear`
      - :ref:`platform_freescalekinetis`
      - External
      - MK64FN1M0VDC12
      - 120MHz
      - 1MB
      - 256KB

NXP
~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nxplpc_lpc54114`
      - :ref:`platform_nxplpc`
      - On-board
      - LPC54114J256BD64
      - 100MHz
      - 256KB
      - 192KB
    * - :ref:`board_nxpimxrt_mimxrt1010_evk`
      - :ref:`platform_nxpimxrt`
      - On-board
      - MIMXRT1011DAE5A
      - 500MHz
      - 64KB
      - 128KB
    * - :ref:`board_nxpimxrt_mimxrt1015_evk`
      - :ref:`platform_nxpimxrt`
      - On-board
      - MIMXRT1015DAF5A
      - 500MHz
      - 96KB
      - 128KB
    * - :ref:`board_nxpimxrt_mimxrt1020_evk`
      - :ref:`platform_nxpimxrt`
      - On-board
      - MIMXRT1021DAG5A
      - 500MHz
      - 64MB
      - 256MB
    * - :ref:`board_nxpimxrt_mimxrt1050_evk`
      - :ref:`platform_nxpimxrt`
      - On-board
      - MIMXRT1052DVL6B
      - 600MHz
      - 64MB
      - 512KB
    * - :ref:`board_nxpimxrt_mimxrt1060_evk`
      - :ref:`platform_nxpimxrt`
      - On-board
      - MIMXRT1062DVL6A
      - 600MHz
      - 64MB
      - 1MB
    * - :ref:`board_nxpimxrt_mimxrt1064_evk`
      - :ref:`platform_nxpimxrt`
      - On-board
      - MIMXRT1064DVL6A
      - 600MHz
      - 4MB
      - 1MB

Nordic
~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nordicnrf52_thingy_52`
      - :ref:`platform_nordicnrf52`
      - External
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_nordicnrf51_nrf51_dongle`
      - :ref:`platform_nordicnrf51`
      - On-board
      - NRF51822
      - 32MHz
      - 256KB
      - 32KB
    * - :ref:`board_nordicnrf51_nrf51_dk`
      - :ref:`platform_nordicnrf51`
      - On-board
      - NRF51822
      - 32MHz
      - 256KB
      - 32KB
    * - :ref:`board_nordicnrf52_nrf52_dk`
      - :ref:`platform_nordicnrf52`
      - On-board
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB
    * - :ref:`board_nordicnrf52_nrf52840_dk`
      - :ref:`platform_nordicnrf52`
      - On-board
      - NRF52840
      - 64MHz
      - 1MB
      - 256KB

Olimex
~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_ststm32_olimexino`
      - :ref:`platform_ststm32`
      - External
      - STM32F103RBT6
      - 72MHz
      - 128KB
      - 20KB
    * - :ref:`board_ststm32_olimex_p405`
      - :ref:`platform_ststm32`
      - External
      - STM32F405RGT6
      - 168MHz
      - 1MB
      - 192KB
    * - :ref:`board_ststm32_olimex_e407`
      - :ref:`platform_ststm32`
      - External
      - STM32F407ZGT6
      - 168MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_olimex_h407`
      - :ref:`platform_ststm32`
      - External
      - STM32F407ZGT6
      - 168MHz
      - 1MB
      - 128KB

Particle
~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nordicnrf52_particle_argon`
      - :ref:`platform_nordicnrf52`
      - External
      - NRF52840
      - 64MHz
      - 796KB
      - 243KB
    * - :ref:`board_nordicnrf52_particle_boron`
      - :ref:`platform_nordicnrf52`
      - External
      - NRF52840
      - 64MHz
      - 796KB
      - 243KB
    * - :ref:`board_nordicnrf52_particle_xenon`
      - :ref:`platform_nordicnrf52`
      - External
      - NRF52840
      - 64MHz
      - 796KB
      - 243KB

RedBearLab
~~~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nordicnrf51_redBearLabBLENano`
      - :ref:`platform_nordicnrf51`
      - On-board
      - NRF51822
      - 16MHz
      - 256KB
      - 32KB
    * - :ref:`board_nordicnrf52_redbear_blenano2`
      - :ref:`platform_nordicnrf52`
      - On-board
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB

ST
~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_ststm32_disco_f412zg`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F412ZGT6
      - 100MHz
      - 1MB
      - 256KB
    * - :ref:`board_ststm32_disco_f723ie`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F723IEK6
      - 216MHz
      - 512KB
      - 192KB
    * - :ref:`board_ststm32_nucleo_g071rb`
      - :ref:`platform_ststm32`
      - External
      - STM32G071RBT6
      - 64MHz
      - 128KB
      - 36KB
    * - :ref:`board_ststm32_nucleo_g431rb`
      - :ref:`platform_ststm32`
      - External
      - STM32G431RBT6
      - 170MHz
      - 128KB
      - 32KB
    * - :ref:`board_ststm32_nucleo_g474re`
      - :ref:`platform_ststm32`
      - External
      - STM32G474RET6
      - 170MHz
      - 512KB
      - 128KB
    * - :ref:`board_ststm32_disco_f411ve`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F411VET6
      - 100MHz
      - 512KB
      - 128KB
    * - :ref:`board_ststm32_disco_f429zi`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F429ZIT6
      - 180MHz
      - 2MB
      - 256KB
    * - :ref:`board_ststm32_disco_f469ni`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F469NIH6
      - 180MHz
      - 1MB
      - 384KB
    * - :ref:`board_ststm32_disco_f746ng`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F746NGH6
      - 216MHz
      - 1MB
      - 320KB
    * - :ref:`board_ststm32_disco_f769ni`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F769NIH6
      - 216MHz
      - 1MB
      - 512KB
    * - :ref:`board_ststm32_disco_l476vg`
      - :ref:`platform_ststm32`
      - On-board
      - STM32L476VGT6
      - 80MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_disco_l496ag`
      - :ref:`platform_ststm32`
      - On-board
      - STM32L496AGI6
      - 80MHz
      - 1MB
      - 320KB
    * - :ref:`board_ststm32_disco_l475vg_iot01a`
      - :ref:`platform_ststm32`
      - On-board
      - STM32L475VGT6
      - 80MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_disco_l072cz_lrwan1`
      - :ref:`platform_ststm32`
      - On-board
      - STM32L072CZ
      - 32MHz
      - 192KB
      - 20KB
    * - :ref:`board_ststm32_disco_f072rb`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F072RBT6
      - 48MHz
      - 128KB
      - 16KB
    * - :ref:`board_ststm32_nucleo_f030r8`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F030R8T6
      - 48MHz
      - 64KB
      - 8KB
    * - :ref:`board_ststm32_nucleo_f070rb`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F070RBT6
      - 48MHz
      - 128KB
      - 16KB
    * - :ref:`board_ststm32_nucleo_f091rc`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F091RCT6
      - 48MHz
      - 256KB
      - 32KB
    * - :ref:`board_ststm32_nucleo_f103rb`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F103RBT6
      - 72MHz
      - 128KB
      - 20KB
    * - :ref:`board_ststm32_nucleo_f207zg`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F207ZGT6
      - 120MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_nucleo_f302r8`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F302R8T6
      - 72MHz
      - 64KB
      - 16KB
    * - :ref:`board_ststm32_nucleo_f334r8`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F334R8T6
      - 72MHz
      - 64KB
      - 16KB
    * - :ref:`board_ststm32_nucleo_f401re`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F401RET6
      - 84MHz
      - 512KB
      - 96KB
    * - :ref:`board_ststm32_nucleo_f411re`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F411RET6
      - 100MHz
      - 512KB
      - 128KB
    * - :ref:`board_ststm32_nucleo_f412zg`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F412ZGT6
      - 100MHz
      - 1MB
      - 256KB
    * - :ref:`board_ststm32_nucleo_f413zh`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F413ZHT6
      - 100MHz
      - 512KB
      - 128KB
    * - :ref:`board_ststm32_nucleo_f429zi`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F429ZIT6
      - 180MHz
      - 2MB
      - 256KB
    * - :ref:`board_ststm32_nucleo_f446re`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F446RET6
      - 180MHz
      - 512KB
      - 128KB
    * - :ref:`board_ststm32_nucleo_f746zg`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F746ZGT6
      - 216MHz
      - 1MB
      - 320KB
    * - :ref:`board_ststm32_nucleo_f756zg`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F756ZG
      - 216MHz
      - 1MB
      - 320KB
    * - :ref:`board_ststm32_nucleo_f767zi`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F767ZIT6
      - 216MHz
      - 2MB
      - 512KB
    * - :ref:`board_ststm32_nucleo_l053r8`
      - :ref:`platform_ststm32`
      - On-board
      - STM32L053R8T6
      - 32MHz
      - 64KB
      - 8KB
    * - :ref:`board_ststm32_nucleo_l073rz`
      - :ref:`platform_ststm32`
      - On-board
      - STM32L073RZ
      - 32MHz
      - 192KB
      - 20KB
    * - :ref:`board_ststm32_nucleo_l432kc`
      - :ref:`platform_ststm32`
      - On-board
      - STM32L432KCU6
      - 80MHz
      - 256KB
      - 64KB
    * - :ref:`board_ststm32_nucleo_l476rg`
      - :ref:`platform_ststm32`
      - On-board
      - STM32L476RGT6
      - 80MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_nucleo_l496zg`
      - :ref:`platform_ststm32`
      - On-board
      - STM32L496ZGT6
      - 80MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_nucleo_l4r5zi`
      - :ref:`platform_ststm32`
      - On-board
      - STM32L4R5ZIT6
      - 120MHz
      - 2MB
      - 640KB
    * - :ref:`board_ststm32_disco_f051r8`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F051R8T6
      - 48MHz
      - 64KB
      - 8KB
    * - :ref:`board_ststm32_disco_f303vc`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F303VCT6
      - 72MHz
      - 256KB
      - 48KB
    * - :ref:`board_ststm32_disco_f407vg`
      - :ref:`platform_ststm32`
      - On-board
      - STM32F407VGT6
      - 168MHz
      - 1MB
      - 128KB
    * - :ref:`board_ststm32_steval_fcu001v1`
      - :ref:`platform_ststm32`
      - External
      - STM32F401CCU6
      - 84MHz
      - 256KB
      - 64KB
    * - :ref:`board_ststm32_eval_f107vc`
      - :ref:`platform_ststm32`
      - External
      - STM32F107VCT6
      - 72MHz
      - 256KB
      - 64KB
    * - :ref:`board_ststm32_eval_f373vc`
      - :ref:`platform_ststm32`
      - External
      - STM32F373VCT6
      - 72MHz
      - 256KB
      - 32KB
    * - :ref:`board_ststm32_eval_f072vb`
      - :ref:`platform_ststm32`
      - External
      - STM32F072VBT6
      - 48MHz
      - 128KB
      - 16KB
    * - :ref:`board_ststm32_disco_h743xi`
      - :ref:`platform_ststm32`
      - On-board
      - STM32H747XIH6
      - 400MHz
      - 2MB
      - 512KB

SiFive
~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_sifive_hifive1`
      - :ref:`platform_sifive`
      - On-board
      - FE310
      - 320MHz
      - 16MB
      - 16KB
    * - :ref:`board_sifive_hifive1-revb`
      - :ref:`platform_sifive`
      - On-board
      - FE310
      - 320MHz
      - 16MB
      - 16KB

Silicon Labs
~~~~~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_siliconlabsefm32_efm32wg_stk3800`
      - :ref:`platform_siliconlabsefm32`
      - On-board
      - EFM32WG990F256
      - 48MHz
      - 256KB
      - 32KB
    * - :ref:`board_siliconlabsefm32_efm32hg_stk3400`
      - :ref:`platform_siliconlabsefm32`
      - On-board
      - EFM32HG322F64
      - 25MHz
      - 64KB
      - 8KB

SparkFun
~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_sifive_sparkfun_redboard_v`
      - :ref:`platform_sifive`
      - On-board
      - FE310
      - 320MHz
      - 16MB
      - 16KB
    * - :ref:`board_sifive_sparkfun_thing_plus_v`
      - :ref:`platform_sifive`
      - On-board
      - FE310
      - 320MHz
      - 16MB
      - 16KB

VNG
~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nordicnrf51_vbluno51`
      - :ref:`platform_nordicnrf51`
      - On-board
      - NRF51822
      - 16MHz
      - 128KB
      - 32KB
    * - :ref:`board_nordicnrf52_vbluno52`
      - :ref:`platform_nordicnrf52`
      - On-board
      - NRF52832
      - 64MHz
      - 512KB
      - 64KB

Waveshare
~~~~~~~~~

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

    * - Name
      - Platform
      - Debug
      - MCU
      - Frequency
      - Flash
      - RAM
    * - :ref:`board_nordicnrf51_waveshare_ble400`
      - :ref:`platform_nordicnrf51`
      - External
      - NRF51822
      - 32MHz
      - 256KB
      - 32KB
