synthesis constraints versus implementation constraints [50]

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tariq786

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I see in the following webpage

**broken link removed**


that you can write constraints before synthesis. This brings up the question that "does one need implementation constraints if one has already written synthesis constraints?"

For examples, i write synthesis constraints to constrain period and offset delays, then do i have to write implementation constraints for these as well? The webpage hints that this is not needed. But i am making sure by posting this question to expert fellows on the edaboard.

good explanation gets 10-50 points.
 

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