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Getting "unknown device" error with MSP430 Launchpad

Dean Velasco
Intellectual 890 points

I'm trying to use Code Composer to download some debug firmware to my MSP430 Launchpads.  Whenever I try though, I get an "Error connecting to device: Unknown device" error.

This used to work.  I think that this problem started materializing after I attempted to upgrade Code Composer. I managed to roll back to my previous version, but I keep getting this error now.  Help?

  • 0
    Guru 227245 points

    The error is probably caused by the software you did already upload on the device – under some circumstances it can prevent the JTAG from attaching (by resetting the MSP before the FET has completed the identification)

    You may try the free Elprotronic software for a mass erase, or use the BSL to do a mass erase (well, requires some additional hardware).
    It might be sufficient to put the MSP in BSL mode by generating the required BSL entry sequence on RST and TEST pin. Then it won’t start your firmware and the FET can attach.

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