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FreeRTOS Support ArchiveThe 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.
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How to free a handle of a mutex?Posted by Peter on December 21, 2010 Hi folks, a two short questions. a) How can i free the allocated memory of a semaphore handle? xSemaphoreHandle myHandle = xSemaphoreCreateMutex(); ToDo: How to free the allocated memory? b) Why does this handle allocate 0x58 bytes? Kind regards, Peter RE: How to free a handle of a mutex?Posted by Richard on December 22, 2010 a) All semaphore functionality is built on top of queue functionality, so you can use the queue delete function to delete a semaphore too. Be careful that no tasks hold the semaphore or are blocked on the semaphore before it is deleted though. b) See the FAQ "why does a queue use that much RAM" http://www.freertos.org/FAQMem.html It is not just the handle, but the entire semaphore. Regards.
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NXP tweet showing LPC5500 (ARMv8-M Cortex-M33) running FreeRTOS.
Meet Richard Barry and learn about running FreeRTOS on RISC-V at FOSDEM 2019
Version 10.1.1 of the FreeRTOS kernel is available for immediate download. MIT licensed.
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FreeRTOS and other embedded software careers at AWS.
