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Altera_Forum's avatar
Altera_Forum
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16 years ago

Set constraint for timequest

hi. i just start to use timequest. some simple question wondering me and needs confirmation. 1. If use the clock enable method as frequency divider, is necessary to set constraint? 2. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

What rbugalho is right on. You do not have to set multicycle path constraints on a path by path basis. There are a number of ways to do so. For example, one technique would be to set the constraint for an entire clock domain. As I stated earlier, beware...you need to verify that your enable path is still timed as a single-cycle path.

Agree with rbughalo comments on area. Optimization to meet a higher frequency may require techniques that cause area increase.