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Altera_Forum's avatar
Altera_Forum
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11 years ago

Drive pins to ground instead of using real ground

Hi, this might seem like a stupid question but I dare to ask. :) I have an external peripheral device which I need to connect to a Stratix 5 GX FPGA via an FMC add-on card. The add-on card ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Still don't understand what should be the implication of the said "wrong direction". But of course that's not the main point.

I presume there are some cable wires connected to real ground so that power supply and DC voltage drop are no issues.

The key words in my previous post are howvere "better than nothing". If it actually works depends on many details that can't be exactly predicted from the rather general problem description. I would set maximum drive strength for ground pins and low drive strength for signal pins to improve the signal integrity.