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Altera_Forum
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13 years ago

Stratix-4 DDR3 dqs_n fitter error

Hi All, I am using a Stratix-4 Dev. board and am trying to add a DDR3 UniPHY controller. All is fine until I get to the fitter which gives me the error: error (176718): pin memory_mem_...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Hi,

I have the same problem. Differential clock pair for external DDR3 interface should have ck and ck_n. However when doing the pin assignments it created another ck(n) and ck_n(n). Same also with dqs[1], dqs_n[1], dqs [0], dqs_n[0]... It created another dqs[1](n), dqs_n[1](n), dqs[0](n), dqs_n[0](n) when I want to do pin assignments. Is it a bug in QII 13.0? I have been stuck in here for days. Service request has not yet come back to me. Any idea what to do?