zephyr

History

Anas Nashif 5060ca6a30 cmake: increase minimal required version to 3.13.1 Move to latest cmake version with many bug fixes and enhancements. Signed-off-by: Anas Nashif <anas.nashif@intel.com> Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>		2019-01-03 11:51:29 -05:00
..
src	…
CMakeLists.txt	cmake: increase minimal required version to 3.13.1	2019-01-03 11:51:29 -05:00
README.rst	…
prj.conf	…
sample.yaml	…

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