.. _framework_cmsis:

Framework ``cmsis``
===================
The ARM Cortex Microcontroller Software Interface Standard (CMSIS) is a vendor-independent hardware abstraction layer for the Cortex-M processor series and specifies debugger interfaces. The CMSIS enables consistent and simple software interfaces to the processor for interface peripherals, real-time operating systems, and middleware. It simplifies software re-use, reducing the learning curve for new microcontroller developers and cutting the time-to-market for devices.

For more detailed information please visit `vendor site <http://www.arm.com/products/processors/cortex-m/cortex-microcontroller-software-interface-standard.php>`_.

.. contents::

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

    * - Name
      - Description

    * - :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 <http://platformio.org/#!/boards>`_
    * For more detailed ``board`` information please scroll tables below by horizontal.

Armstrap
~~~~~~~~

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

    * - Type ``board``
      - Name
      - Microcontroller
      - Frequency
      - Flash
      - RAM

    * - ``armstrap_eagle1024``
      - `Armstrap Eagle 1024 <http://docs.armstrap.org/en/latest/hardware-overview.html>`_
      - STM32F417VGT6
      - 168 MHz
      - 1024 Kb
      - 192 Kb

    * - ``armstrap_eagle2048``
      - `Armstrap Eagle 2048 <http://docs.armstrap.org/en/latest/hardware-overview.html>`_
      - STM32F427VIT6
      - 168 MHz
      - 2048 Kb
      - 256 Kb

    * - ``armstrap_eagle512``
      - `Armstrap Eagle 512 <http://docs.armstrap.org/en/latest/hardware-overview.html>`_
      - STM32F407VET6
      - 168 MHz
      - 512 Kb
      - 192 Kb

ST
~~

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

    * - Type ``board``
      - Name
      - Microcontroller
      - Frequency
      - Flash
      - RAM

    * - ``disco_f303vc``
      - `ST STM32F3DISCOVERY <http://www.st.com/web/catalog/tools/FM116/SC959/SS1532/LN1848/PF254044>`_
      - STM32F303VCT6
      - 72 MHz
      - 256 Kb
      - 48 Kb

    * - ``disco_f407vg``
      - `ST STM32F4DISCOVERY <http://www.st.com/web/catalog/tools/FM116/SC959/SS1532/LN1848/PF252419>`_
      - STM32F407VGT6
      - 168 MHz
      - 1024 Kb
      - 128 Kb

    * - ``disco_l152rb``
      - `ST STM32LDISCOVERY <http://www.st.com/web/catalog/tools/FM116/SC959/SS1532/LN1848/PF258515>`_
      - STM32L152RBT6
      - 32 MHz
      - 128 Kb
      - 16 Kb