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Altera_Forum's avatar
Altera_Forum
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14 years ago

Timequest makes timings but not the real stratix IV hardware

I am having problems making actual timings on the real hardware. I'm actually trying to upgrade from a stratix III to a stratix IV. The design works on a stratix III. After I've set up a ba...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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Yes, Not running as in not making timings, although the analyzer says I am. I have some violations with one particular clock that is not involved in the relevant circuits at all. I can disable it and the violations will go away. Then nothing is in red any more except for the report of unconstrained paths.

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Hi,

you observed the problem with signaltap. It is also possible that you have a problem with

capturing the signals. Could you verify that your design shows a "real" misbehaviour ?

Kind regards

GPK