Forum Discussion
JSmit123
New Contributor
7 years agoDid I set up input timing constraints correctly?
I have both clock and data coming from external chip: input_clock, input_data. Datasheet says setup time 3ns, hold time 1ns. Can you please check if these constraints are correct? I believe so but t...
IDeyn
Contributor
7 years agoHi JSmit123!
I agree with sstrell last post, it is not a simple task, so you need some reading for deeper understanding of Source Synchronous Interface Constraints.
In my opinion best resourse on that topic - https://fpgawiki.intel.com/wiki/index.php?title=File:Source_Synchronous_Timing.pdf by Ryan Scoville.
To write a proper sdc constraints in your case you can choose from number of methods.
Hope that helps.
--
Best Regards,
Ivan