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

Hello World! x86