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KL8x: Universal Multilink: Breakpoints in QSPI
Konrad G. Oct 25, 2016 at 11:24 AM (11:24 hours)
Staff: Edison T.

  • Hello,

    I am on a project with the Freescale MKL82Z128VMC7 SDK. As my software grew,
    I hit the limitations of the internal flash and therefore moved it to run
    from external (QSPI) flash.

    Currently I am using the OpenSDA with J-Link firmware which cannot set
    breakpoints within the QSPI address space. Is the Universal Multilink (or Universal Multilink FX) probe able to set breakpoints within the QSPI flash?

    Konrad Gräfe


    • Hi Konrad,

      Can you give me an example of an address that you are trying to set a breakpoint at? The Cortex M0, M3, and M4 cannot set hardware breakpoints at addresses higher than 0x1000_0000.

      • This is a Cortex M0+ with the QSPI flash mapped to 0x68000000.

        There is a competitor who claims to support software breakpoints by reprogramming the QSPI flash. But as those products are more expensive, I wanted to find out if this is a common feature or not.

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