[SOLVED] ETM trace with JTrace on STM32F4xx bootROM - is it possible to enable?

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  • [SOLVED] ETM trace with JTrace on STM32F4xx bootROM - is it possible to enable?

    Is it somehow possible to turn on ETM trace while STM32F4xx is running in bootROM? So far I wasn't much successful. I don't know if it's due timing (correct frequency) or that MCU uses internal HSI oscillator by default.

    ETM in "normal" programs is no problem, but we would need to investigate an attack where ETM trace of bootROM would really help.

  • St‘s forum is a better place to ask,
    as it is their chip and their boot ROM.
    Most chip vendors suppress (certain) debug operations in boot ROM on purpose.

    BR
    Alex
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