zephyr

History

Anas Nashif deaab90641 tests/samples: cleanup tags Remove redundant 'sample' tag and add something that matches the functionality and features being tested, demonstrated. Avoid short abbriviations and using full names for fs. Signed-off-by: Anas Nashif <anas.nashif@intel.com>		2018-10-16 09:17:51 -04:00
..
src	samples: hello world: print board name	2018-09-17 09:46:24 -04:00
CMakeLists.txt	cmake: Prepend 'cmake_minimum_required()' into 'app' build scripts	2018-08-15 04:06:50 -07:00
README.rst	…
prj.conf	sample: we have dedicated test for single thread	2018-09-17 09:46:24 -04:00
sample.yaml	tests/samples: cleanup tags	2018-10-16 09:17:51 -04:00

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