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STM32F4 + FreeRTOS + usage fault

davidregan9
Associate II
Posted on March 29, 2017 at 12:41

FreeRTOS + STM32F4

I have been hitting a usage fault with CFSR invpc bit set which according to documentation means that an error occurred returning from an exception and that the stacked pc indicates the faulting instruction.

My problem is that the pc points to code that should be run in thread mode.

Has anyone seen this before/got any advice

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