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But say I want to use RD OCT for LVDS, then I need to connect a Rup to 2.5V and a Rdn to ground right? What If there are none in bank 6, which Rup and Rdn should I choose? There are only 3 such pairs in the Arria II Gx 780 pins.
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Implement a design in Quartus and see what it does. If it selects Rup/Rdn in another bank, then you know that is one option. Try explicitly assigning Rup/dn to the bank Quartus selects and re-run P&R (it should succeed). Now try using other Rup/dn banks to see if there is a restriction on the banks you can use.
Its much easier to use Quartus to check for P&R violations - just make sure to use the most recent version of Quartus (or try several versions).
Cheers,
Dave
Honored Contributor
