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Hi Kronic,
The Vref absolute max rating is -0.5V, so you were right in the middle of a "no man's land", on the edge of permanent damage frontier...I would say, you have 50% chance your FPGA has survived.
Was it a transient or a permanent voltage ?
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Hi Genoli,
thank you for your help.
about the Vref voltage, unfortunately, we didn't find this absolute maximum rating in the documentation (in contrary to other voltages/pins)...
if you have the reference document and the page where you found this information, I would be greatly interested. maybe we sought in the wrong documents...
about your question, it was a permanent voltage (worst case I guess).
in fact it was a part of the output voltage of an amplifier which goes to saturation (a design issue that we have to fix for future releases).
Honored Contributor
