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NChen8's avatar
NChen8
Icon for New Contributor rankNew Contributor
6 years ago

arria 10 DDR3 fitter DM&DQ fault

Unable to place DM pin adjacent to a DQ pin. Constrain the DM pin and a DQ pin to I/O locations that form a differential pair I plant the DM pin and DQ pin both in same bank. QSF file: set_locat...
sstrell's avatar
sstrell
Icon for Super Contributor rankSuper Contributor
6 years ago

The easiest way to make sure you have valid placement is to enable the DDR memory view in the Pin Planner. In the View menu, select the view for the size of your DQS groups (x8) and the Pin Planner will indicate which pins you can/should use for DQ, DQS, and DM.

If you want a more thorough analysis, you can use the Interface Planner tool to select a valid legal location for the entire interface and have it validated on the fly.

#iwork4intel