[ABANDONED] MAC7116 dead after trying to read it's flash

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  • [ABANDONED] MAC7116 dead after trying to read it's flash

    Today i wanted to read the internal and external Flash of a MAC7116 Microcontroller on an car instrument cluster. The J-Flash 6.22g tool did connect instandly and i choose "Target-> Manual programming -> Read back -> Entire Chip". This starts with 4 progress bars and in the last is stops with an error message. After that the system does not start any more, like it's killed.

    The J-Link Commander could still connect to the chip, identify it, but could not halt the CPU and therefore it can't to anything.

    Help please!

  • Hello,

    Thank you for your inquiry.
    Such an issue is not known to us.
    Today i wanted to read the internal and external Flash of a MAC7116 Microcontroller on an car instrument cluster.

    How did you address the external flash? Did you write a flash loader with our open flash loader interface or did you use a CFI compliant Flash and initialized it accordingly?
    Was the device "locked" in some way before the read attempt and first connect?
    Could you post the J-Link Commander output that shows what happens if you try to reset and halt the device?

    Best regards,
    Nino
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