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Thread: XCM4500 ends up in the boot rom while debugging

  1. #1
    Intermediate Intermediate amanning will become famous soon enough
    Join Date
    Oct 2015

    XCM4500 ends up in the boot rom while debugging

    I have a XMC4500 on a board designed by ourselves. I can download a program and it runs correctly, but if I run it with the debugger the program runs correctly for about 20ms and then ends up in an endless loop in the boot ROM.
    I am using RTX and the jump to the boot ROM occurs while in the idle loop.

    My questions:
    1. How is it possible to end up in the boot ROM from a running program? (It cannot be an invalid pointer in the idle loop)
    2. Why does it not just restart, the hardware configuration is correct the first time.
    3. What effect can the debugger (Keil ULINKpro) be having to cause this?

  2. #2

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

    One reason for your observation could be a stack overflow. Do you have enabled the OS_STKCHECK?

    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.

  3. #3
    Intermediate Intermediate ErnieT is on a distinguished road
    Join Date
    Feb 2018
    Any interrupts running which could cause the problem? I'd try commenting all interrupts. If it does not help, try commenting out other code (especially DMA-related) until problem disappears.

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