zephyr

History

Carles Cufi 72046a8abc doc: getting_started: Support multi-OS instructions In order to be able to document the build on Windows and UNIX systems, slight variations are required on the app commands that are used throughout the documentation system. This includes getting rid of the prompt symbol and providing commands for both UNIX and Windows operating systems. Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>		2018-01-18 16:53:31 -05:00
..
src	kbuild: Removed KBuild	2017-11-08 20:00:22 -05:00
CMakeLists.txt	cmake: remove IS_TEST handling	2018-01-08 10:03:57 -05:00
prj.conf	samples: hello world: unify sample and use unified kernel	2016-10-27 21:19:36 +00:00
prj_single.conf	samples: add configuration for single threaded hello world	2016-12-17 16:54:45 +00:00
README.rst	doc: getting_started: Support multi-OS instructions	2018-01-18 16:53:31 -05:00
sample.yaml	samples: remove build_only from various samples	2017-12-28 20:24:29 -05:00

README.rst

.. _hello_world:

Hello World
###########

Overview
********
A simple Hello World example that can be used with any supported board and
prints 'Hello World' to the console. This application can be built into modes:

* single thread
* multi threading

Building and Running
********************

This project outputs 'Hello World' to the console.  It can be built and executed
on QEMU as follows:

.. zephyr-app-commands::
   :zephyr-app: samples/hello_world
   :host-os: unix
   :board: qemu_x86
   :goals: run
   :compact:

To build the single thread version, use the supplied configuration file for
single thread: :file:`prj_single.conf`:

.. zephyr-app-commands::
   :zephyr-app: samples/hello_world
   :host-os: unix
   :board: qemu_x86
   :conf: prj_single.conf
   :goals: run
   :compact:

Sample Output
=============

.. code-block:: console

    Hello World! x86