Synchronization using CMSIS RTOS V1 APIs

Overview

The sample project illustrates usage of timers and message queues using CMSIS RTOS V1 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.