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Thread: XMC4500 / FLASH0->FCON / Hard Fault

  1. #1
    New Member New Member Workalot is on a distinguished road
    Join Date
    Sep 2017

    XMC4500 / FLASH0->FCON / Hard Fault

    At this early stage of development I am getting a hard fault at the first attempt to read the FLASH0.FCON register.

    In the XMC4500 reference manual I see the statement...

    "FCON is a Privileged Mode protected register."

    ... so maybe an unlocking sequence is required. But I am unable to locate any information.


  2. #2

    Infineon Employee
    Infineon Employee
    jferreira will become famous soon enough
    Join Date
    Oct 2012

    The FLASH0->FCON, register is accessed in the SystemCoreSetup() function in system_XMC4500.c file. After reset you are in privilege mode. If you do not explicitly switch to unprivileged mode, you should be able to access the register.
    Can you show your code?

    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

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