gatecat / TrellisBoard

Ultimate ECP5 development board
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100MHz LVDS clock is connected to pins not capable of differential inputs #2

Open daveshah1 opened 5 years ago

daveshah1 commented 5 years ago

Top (PT) IO pins cannot do differential input. Most likely would be best to move to a pair of pins in one of the DDR3 banks.

Workaround for now is to use the 12MHz single ended clock, this seems fine for a PLL input.