ARM Technical Support Knowledge Articles

INITIAL STATE OF SEMAPHORES

Applies to: RTX51 Real-time Kernel

Answer


Information in this article applies to:


QUESTION

I use a semaphore to control write access to port output pins. After calling os_start_system all my tasks are waiting for the semaphore.

How are the semaphores initialized in RTX51?

ANSWER

When the RTX51 kernel starts semaphores are clear. You must initialize the semaphores using the os_send_token routine before you can use them.

Article last edited on: 2004-05-31 11:34:24

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