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DeepakKumar
Visitor II
November 22, 2024
Solved

STM32H523RCT6 goes into HARDFAULT handler/NMI handler

  • November 22, 2024
  • 1 reply
  • 693 views

Hello ST Team,

                             Currently i am using STM32H523RCT6 mcu for one of my application. Some times mcu goes into "hardfault handler/nmi handler". Can you suggest what will be reasons behind that problem.

 

Thanks with Regards

DEEPAK

    This topic has been closed for replies.
    Best answer by mƎALLEm

    Hello,

    Your description does not provide sufficient information. Moreover Hardfault, it's not obvious to tell you the origin of it so need to debug it yourself. 

    See this article: https://community.st.com/t5/stm32-mcus/how-to-debug-a-hardfault-on-an-arm-cortex-m-stm32/ta-p/672235

    The only origin that I can tell you about this Hardfault on H5 product is the following: https://community.st.com/t5/stm32-mcus/how-to-avoid-a-hardfault-when-icache-is-enabled-on-the-stm32h5/ta-p/630085

    It could be something related to ECC error see: https://community.st.com/t5/stm32-mcus-products/stm32h5-ecc-errors-and-icache-invalidation/td-p/683375

    1 reply

    M
    mƎALLEmAnswer
    Technical Moderator
    November 22, 2024

    Hello,

    Your description does not provide sufficient information. Moreover Hardfault, it's not obvious to tell you the origin of it so need to debug it yourself. 

    See this article: https://community.st.com/t5/stm32-mcus/how-to-debug-a-hardfault-on-an-arm-cortex-m-stm32/ta-p/672235

    The only origin that I can tell you about this Hardfault on H5 product is the following: https://community.st.com/t5/stm32-mcus/how-to-avoid-a-hardfault-when-icache-is-enabled-on-the-stm32h5/ta-p/630085

    It could be something related to ECC error see: https://community.st.com/t5/stm32-mcus-products/stm32h5-ecc-errors-and-icache-invalidation/td-p/683375

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