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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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while creating a task, 4 times the ram is malloc'd than requested @ prvAllocateTCBAndStack()Posted by hassan789 on August 26, 2016 When createing a task with 4kB of stack, prvAllocateTCBAndStack() executes the following line:
This does a mallco of 4kB * sizeof( StackType_t ).. which means it mallocs 16kB... why is that? I am running FreeRTOS v8 and Heap4 Thanks while creating a task, 4 times the ram is malloc'd than requested @ prvAllocateTCBAndStack()Posted by rtel on August 26, 2016 Please see the documentation for the xTaskCreate() API function: http://www.freertos.org/a00125.html while creating a task, 4 times the ram is malloc'd than requested @ prvAllocateTCBAndStack()Posted by richard_damon on August 26, 2016 Requested stack size is define to be in units of StackTypeT, not bytes. Due to alignment reasons, it MUST be a multiple of StackTypeT, so it is given in units of StackType_T. while creating a task, 4 times the ram is malloc'd than requested @ prvAllocateTCBAndStack()Posted by hassan789 on August 26, 2016 understood.. thanks
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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.
