zephyr

History

Anas Nashif f37287bbca samples: cleanup sample test naming Cleanup test names and make them suitable for import into test management system. Signed-off-by: Anas Nashif <anas.nashif@intel.com>		2018-06-11 17:11:18 -04:00
..
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
README.rst	doc: getting_started: Support multi-OS instructions	2018-01-18 16:53:31 -05:00
prj.conf	…
prj_stack_guard.conf	samples: synch: Add Thread Stack Guards conf	2017-05-16 09:28:06 -05:00
sample.yaml	samples: cleanup sample test naming	2018-06-11 17:11:18 -04:00

README.rst

.. _synchronization_sample:

Synchronization Sample
######################

Overview
********

A simple application that demonstrates basic sanity of the kernel.
Two threads (A and B) take turns printing a greeting message to the console,
and use sleep requests and semaphores to control the rate at which messages
are generated. This demonstrates that kernel scheduling, communication,
and timing are operating correctly.

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

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

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

On the supported ARM MCUs the project can be built with the MPU and the Thread
Stack Guard feature enabled:

.. zephyr-app-commands::
   :zephyr-app: samples/synchronization
   :board: v2m_beetle
   :conf: prj_stack_guard.conf
   :goals: build flash
   :compact:

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

.. code-block:: console

   threadA: Hello World!
   threadB: Hello World!
   threadA: Hello World!
   threadB: Hello World!
   threadA: Hello World!
   threadB: Hello World!
   threadA: Hello World!
   threadB: Hello World!
   threadA: Hello World!
   threadB: Hello World!

   <repeats endlessly>