mDot programming without dev board

[Andrew Lindsay]

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

[Brandon Bayer]

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

[Mike Fiore]

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

[Andrew Lindsay]

Thanks guys.

Much appreciated

Andrew

[Author]

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