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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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Stack Size of A task in Free RTOSPosted by gauravpatni on May 2, 2016 Hi, Can anyone please give the basics of task's Stack size calculations ? As per the baics of Stack & context switching , Context gets saved in Stack before executing high prioity tasks. As per my understanding , Context means CPU registers. But in any Microcntroller number of CPU registrs are limited for eg. for PIC32MX Coprocessor 0 has max 32 registers outof which only 13 are in used ( excluding reserved resisters ) . So for context switching / saving we need only ~13 x4 = ~52 bytes of RAM . Then why we need to allocate much higher RAM for Stack I task creation ? Thanks, Gaurav Stack Size of A task in Free RTOSPosted by rtel on May 2, 2016 See the following FAQ item: http://www.freertos.org/FAQMem.html#StackSize
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NXP tweet showing LPC5500 (ARMv8-M Cortex-M33) running FreeRTOS.
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