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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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Reason for HardFault_Handler ?Posted by nalinnakum on September 6, 2016 I just want to know why HardFault_Handler? And how to prevent it from occure? I used STM32F405 controller and port free RTOS. In my project HardFault_Handler occurred randomly after higher priority task invoked. Is this issue regarding stack size or Priority of Task? Reason for HardFault_Handler ?Posted by rtel on September 6, 2016 There are lots of reasons you might end up in the hard fault handler (read the ARM documentation to see what could trigger these), and as you are the only one with the application in front of you, I'm afraid only you can determine how and why you get there - but here are some links that will help: First, debugging a hard fault: http://www.freertos.org/Debugging-Hard-Faults-On-Cortex-M-Microcontrollers.html Second, trapping stack overflows, if that were the cause: http://www.freertos.org/Stacks-and-stack-overflow-checking.html Third, making use of configASSERT() to find configuration or user errors: http://www.freertos.org/a00110.html#configASSERT Fourth, general "what could be wrong" FAQ page: http://www.freertos.org/FAQHelp.html
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