FreeRTOS Support Archive
The FreeRTOS support forum is used to obtain active support directly from Real
Time Engineers Ltd. In return for using our top quality software and services for
free, we request you play fair and do your bit to help others too! Sign up
to receive notifications of new support topics then help where you can.
This is a read only archive of threads posted to the FreeRTOS support forum.
The archive is updated every week, so will not always contain the very latest posts.
Use these archive pages to search previous posts. Use the Live FreeRTOS Forum
link to reply to a post, or start a new support thread.
[FreeRTOS Home] [Live FreeRTOS Forum] [FAQ] [Archive Top] [March 2017 Threads]
Hello people,
is there any way to set inital count of counting semaphore after the semaphore is created? If I create semaphore like this xSemaphore = xSemaphoreCreateCounting( 10, 0 ), after some time I would like to put semaphore current value to 0 again.
I was thinking to go with for loop uxSemaphoreGetCount times, and do xSemaphoreTake in each iteration, but this function (...GetCount) is not present in v8.2.3 that I am using right now.
Regards
You could do xSemaphoreTake() with a timeout of 0 until it fails.
That's nice idea. Thanks!
You can probably use xQueueReset()
too - you might have to cast the semaphore handle to a queue handle when
passing in the parameter to avoid compiler warnings.
Yes, xQueueReset() works as well. Cast doesn't seem to be needed.
Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.