fried jtagice3...any hope of recovery?

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My wife let my son in the office this afternoon where he proceeded to turn my power supply up to 31V...and then turned it on. My board is obviously dead and my JTAGICE3 smells like IC death. The computer still recognizes the programmer via USB and the green LED turns on when I connect it to a working board, but it's unable to read or write. It does read the voltage correctly in the AS6 programming interface, so the main microcontroller must still be alive.

Any ideas?

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Get The Strop.

Imagecraft compiler user

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huh?

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No help but I do like TE's PolyZen (Zener plus PTC) surge suppressor.
Would of continuously dissipated at 1W that 31V and clamped the supply voltage to the board.

"Dare to be naïve." - Buckminster Fuller

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Usually the output stage in such devices has a buffer like 74HC245 http://www.nxp.com/documents/data_sheet/74HC_HCT245.pdf

The debugger is powered from USB if I'm not mistaken so the main circuit should be safe, you can try to change the output buffer which is what I think got burned (assuming the circuit uses buffer)

Alex

"For every effect there is a root cause. Find and address the root cause rather than try to fix the effect, as there is no end to the latter."
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