Description

General Description:

When running an Unconstrained Path Report (Analyze

Against Timing Constraints - 'Report unconstrained

paths' option) in Timing Analyzer, the report includes the

timing constraints, then the Unconstrained Path Analysis.

Also See (Xilinx Solution 8072)

Solution

The unconstrained paths are listed under the keywords

'Unconstrained Path Analysis' in the Timing Analyzer.

The workaround is to run trace (TRCE) from the

command line with the following syntax:

trce -u 12 design.ncd design.pcf -o output_file.twr