WARNING:Par:468 - Your design did not meet timing. The following are some suggestions to assist you to meet timing in your design.
Review the timing report using Timing Analyzer (In ISE select "Post-Place &
Route Static Timing Report"). Go to the failing constraint(s) and evaluate the failing paths for each constraint.
Try the Design Goal and Strategies for Timing Performance(In ISE select Project -> Design Goals & Strategies) to ensure the best options
are set in the tools for timing closure.
Use the Xilinx "SmartXplorer" script to try special combinations of
options known to produce very good results.
Visit the Xilinx technical support web at and go to
either "Troubleshoot->Tech Tips->Timing & Constraints" or "
TechXclusives->Timing Closure" for tips and suggestions for meeting timing
in your design.
Asterisk (*) preceding a constraint indicates it was not met.
This may be due to a setup or hold violation.