.. _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.

.. contents::

Boards
------

.. note::
    * You can list pre-configured boards by :ref:`cmd_boards` command or
      `PlatformIO Web 2.0 <http://platformio.org/#!/boards>`_ site
    * For more detailed ``board`` information please scroll tables below by horizontal.

ST
~~

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

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

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

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

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