Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem


Initializing mutexes, semaphores, queues.

Posted by Joseph Dupre on July 8, 2010
Is it OK to initialize (create) mutexes, semaphores and queues before the scheduler has started? It is clear to me that that you can not use them before starting the scheduler, but what about calling xSemaphoreCreateMutex(), xQueueCreate() et cetera before the scheduler has started?

RE: Initializing mutexes, semaphores, queues.

Posted by MEdwards on July 8, 2010
Creating queues, semaphores, mutexes, etc. before the scheduler has started is not a problem.

[ Back to the top ]    [ About FreeRTOS ]    [ Privacy ]    [ Sitemap ]    [ ]

Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.

Latest News

Version 10.1.1 of the FreeRTOS kernel is available for immediate download. MIT licensed.

View a recording of the "OTA Update Security and Reliability" webinar, presented by TI and AWS.


FreeRTOS and other embedded software careers at AWS.

FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Espressif ESP32

IAR Partner

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers


STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

OpenRTOS and SafeRTOS

Xilinx Microblaze and Zynq partner