Answers Database

Flow Engine 6.0.1: Optimize Step Must Be Run to Read in XACT-PerformanceChanges in Constraints File


Record #718

Product Family:  Software

Product Line:  FPGA Core

Problem Title:
Flow Engine 6.0.1: Optimize Step Must Be Run to Read in
XACT-PerformanceChanges in Constraints File



Problem Description:
After making changes to XACT-Performance requirements in a constraints file (des
ign.CST),
the Place and Route process in the Flow Engine does not reflect these changes.
The Place and Route software continues to use the original specifications.

Cause:
The Place and Route software does not read XACT-Performance requirements from a
constraints
file.  XACT-Performance specifications in a constraints file are read in during
the Optimize phase.


Solution 1:

To read in modifications to XACT-Performance requirements in a constraints file,

run the Optimze phase.	The Optimize phase will verify the syntax of the
requirements and merge it into the design file.



End of Record #718