docs/zephyr: Add quick reference for the Zephyr port.

Includes an introduction to using the Zephyr port on MicroPython.  The
quickref details examples of how to use each module the port currently
supports.  The tutorial provides additional details for Zephyr specific
modules.

Signed-off-by: Julia Hathaway <julia.hathaway@nxp.com>

1 files changed, 30 insertions, 0 deletions

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+.. _intro_zephyr:
+
+Getting started with MicroPython on the Zephyr port
+===================================================
+
+Let’s get started!
+
+Requirements
+------------
+
+To use the MicroPython Zephyr port, you will need a Zephyr supported board (for a list of acceptable
+boards see :ref:`zephyr_general`).
+
+Powering up
+-----------
+
+If your board has a USB connector on it then most likely it is powered
+through this when connected to your PC. Otherwise you will need to power
+it directly. Please refer to the documentation for your board for
+further details.
+
+Getting and deploying the firmware
+----------------------------------
+
+The first step you will need to do is either clone the `MicroPython repository <https://github.com/micropython/micropython.git>`_
+or download it from the `MicroPython downloads page <http://micropython.org/download>`_. If you are an end user of MicroPython,
+it is recommended to start with the stable firmware builds. If you would like to work on development, you may follow the daily
+builds on git.
+
+Next, follow the Zephyr port readme document (``ports/zephyr/README.md``) to build and run the application on your board.