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Altera_Forum's avatar
Altera_Forum
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17 years ago

Constraint page in IP toolbench Megawizard

Hi There,

I generated the legacy DDR2 controller for StratixIIGX device using Megawizard. There is a constraint page in IP Toolbench. I am not able to understand the various fields on this page. I think that these fields must be constraining the pin assignments for DQ/DQS. I have got cetain pin assignments as per our board. How can I edit this page to constrain the pin assignments for DQ/DQs? Please suggest.

Regards,

Harsh Bandil

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    17 years ago

    I am able to edit the pin assignments under the assignment tab. But when I regenerate the variation, all the assignments are lost and default pin assignments come into effect. Any thought on it, how can I ensure that edited pin assignments are not lost after regenerating the variation