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    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
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    distributed under the License is distributed on an "AS IS" BASIS,
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    See the License for the specific language governing permissions and
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.. _board_ststm8_stm8sblack:

ST STM8S105K4T6 Breakout Board
==============================

.. contents::

Hardware
--------

Platform :ref:`platform_ststm8`: The STM8 is an 8-bit microcontroller family by STMicroelectronics an extended variant of the ST7 microcontroller architecture. STM8 microcontrollers are particularly low cost for a full-featured 8-bit microcontroller.

.. list-table::

  * - **Microcontroller**
    - STM8S105K4T6
  * - **Frequency**
    - 16MHz
  * - **Flash**
    - 16KB
  * - **RAM**
    - 2KB
  * - **Vendor**
    - `ST <https://github.com/TG9541/stm8ef/wiki/Breakout-Boards?utm_source=platformio.org&utm_medium=docs#stm8s105k4t6-breakout-board>`__


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

Please use ``stm8sblack`` ID for :ref:`projectconf_env_board` option in :ref:`projectconf`:

.. code-block:: ini

  [env:stm8sblack]
  platform = ststm8
  board = stm8sblack

You can override default ST STM8S105K4T6 Breakout Board settings per build environment using
``board_***`` option, where ``***`` is a JSON object path from
board manifest `stm8sblack.json <https://github.com/platformio/platform-ststm8/blob/master/boards/stm8sblack.json>`_. For example,
``board_build.mcu``, ``board_build.f_cpu``, etc.

.. code-block:: ini

  [env:stm8sblack]
  platform = ststm8
  board = stm8sblack

  ; change microcontroller
  board_build.mcu = stm8s105k4t6

  ; change MCU frequency
  board_build.f_cpu = 16000000L


Uploading
---------
ST STM8S105K4T6 Breakout Board supports the next uploading protocols:

* ``serial``
* ``stlinkv2``

Default protocol is ``serial``

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

.. code-block:: ini

  [env:stm8sblack]
  platform = ststm8
  board = stm8sblack

  upload_protocol = serial

Debugging
---------
:ref:`piodebug` currently does not support ST STM8S105K4T6 Breakout Board board.

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

    * - Name
      - Description

    * - :ref:`framework_arduino`
      - Arduino Wiring-based Framework allows writing cross-platform software to control devices attached to a wide range of Arduino boards to create all kinds of creative coding, interactive objects, spaces or physical experiences.

    * - :ref:`framework_spl`
      - The ST Standard Peripheral Library provides a set of functions for handling the peripherals on the STM32 Cortex-M3 family. The idea is to save the user (the new user, in particular) having to deal directly with the registers.