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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
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12 years ago

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Hello, I have the same problem: after running the *pin_assignment.tcl, in pin planner are false differential pins *_ck[0](n) instead of *_ck_n[0] etc. Did somebody found the solution?

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I have solved my problem. I had to make the following steps:

1. Generate the Qsys project

2. Run Analysis&Synthesis

3. Run the *_pin_assignments.tlc Script (the Pins will be wrong still wrong at this place), 4. Remove incremental_db

5. Make the full compilation of the project

As a result all pins will be correct and I could fit my design.