[ABANDONED] Error: DAP error while reading DP-Ctrl-Stat register on MbientLab MetaMotionR

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  • [ABANDONED] Error: DAP error while reading DP-Ctrl-Stat register on MbientLab MetaMotionR

    Hello

    The question has already been asked (at least here and here) but has been [ABANDONNED]...

    I'm trying to connect to an MbientLab MetaMotionR device (actually a Nordic nRF52382) with SWD to flash and eventually for RTT.

    Keil uVision can only see the device below 100kHz clock, above nothing appears (see pics 1 & 2).

    When I try to connect with J-Link commander v6.54, same situation: works at 100 kHz (pic3) and doesn't above (pic4 & 5), with the error message mentioned in this message subject.

    Finally, flashing from uVision (SWD at 1.5 MHz) works perfect with a ST-LINK v2 device.

    Do you have any clue?

    Thanks,
    Sebastien



    The setup has been working for several months and I didn't change any hardware.
  • Hi Sebastien,
    Thank you for your inquiry.

    Could you please download the newest version of the J-Link Software and Documentation Pack and try again?
    You can find it here:
    segger.com/downloads/jlink/#J-…twareAndDocumentationPack

    Could you please send us a J-Link log file? How to enable:
    wiki.segger.com/J-Link_DLL#Enable_J-Link_Log_File

    Best regards,
    Fabian
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