This is the documentation for the latest (main) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

Synchronization using CMSI RTOS V2 APIs

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:

west build -b qemu_x86 samples/philosophers
west build -t run

Sample Output

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 CTRL+A x.