mDot programming without dev board

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  • October 2, 2015 at 7:36 am #9453
    Andrew Lindsay
    Participant

    I’ve used the dev board to program my mDot, but wonder if there is an alternative solution for when the mDot is installed into a custom board, and especially if used in the surface mount version. Is JTAG an option that can be used via mbed?

    Thanks

    Andrew

    October 8, 2015 at 10:12 am #9532
    Brandon Bayer
    Blocked

    Andrew,

    Yes, you can use JTAG, but that would wipe out the bootloader. The other option is to design your PCB to allow access to the serial debug port via the USB pins, and then transfer the firmware to the onboard bootloader with Y Modem as described in this post:

    http://www.multitech.net/developer/forums/topic/how-to-upgrade-mdot-board-without-development-baord/

    -Brandon

    October 8, 2015 at 10:39 am #9534
    Mike Fiore
    Blocked

    Andrew,
    One clarification: if you’re building your application with the mbed online compiler or the mbed SDK, the bootloader is automatically built into your application. So, while flashing in a new application will technically wipe out the bootloader, your new application contains a copy of the bootloader, so you don’t lose it.

    Cheers,
    Mike

    October 8, 2015 at 10:40 am #9535
    Andrew Lindsay
    Participant

    Thanks guys.

    Much appreciated

    Andrew

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