Introduction to SYS BIOS (6) - Semaphore

Semaphore is used to implement suspend

When the semaphore count = 0, the task is suspended.
When the semaphore count > 0, the task will continue to execute.
When the semaphore count = 0, the release of the semaphore will resume the task.
Multiple tasks can use the same semaphore to implement suspension. Starting from
binary semaphore
counting semaphore

• Chapter 1：Introduction to SYS BIOS (6) - Semaphore (9 minutes and 53 seconds)