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newkid_old

Constraining nets

Question

I have an LVDS pair that I bring to a IBUFDS which then feeds my SelectIO module.  Implementation is report a timing hold error.  Does anyone know how to constrain this net to it corresponding data clock?  This particular module has a data clock that feeds it for deserialization and I would have thought Vivado would know to use that clock but based off of the error that's not true.

Error.JPG

Error_a.JPG

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