.. zephyr:code-sample:: cmsis-rtos-v2-sync
:name: Synchronization using CMSIS RTOS V2 APIs
Use timers and message queues from CMSIS RTOS v2 API to synchronize threads.
Overview
********
The sample project illustrates usage of timers and message queues using
CMSIS RTOS V2 APIs.
The main thread creates a preemptive thread which writes message to message queue
and on timer expiry, message is read by main thread.
Building and Running Project
****************************
This project outputs to the console. It can be built and executed
on QEMU as follows:
.. zephyr-app-commands::
:zephyr-app: samples/philosophers
:host-os: unix
:board: qemu_x86
:goals: run
:compact:
Sample Output
=============
.. code-block:: console
Wrote to message queue: 5
Read from message queue: 5
Wrote to message queue: 6
Read from message queue: 6
Wrote to message queue: 7
Read from message queue: 7
Wrote to message queue: 8
Read from message queue: 8
Wrote to message queue: 9
Read from message queue: 9
Wrote to message queue: 10
Read from message queue: 10
Wrote to message queue: 11
Read from message queue: 11
Wrote to message queue: 12
Read from message queue: 12
Wrote to message queue: 13
Read from message queue: 13
Wrote to message queue: 14
Read from message queue: 14
Wrote to message queue: 15
Read from message queue: 15
Sample execution successful
Exit QEMU by pressing :kbd:`CTRL+A` :kbd:`x`.
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