The Timing Constraints window is available for Synthesized and Implemented designs only. For elaborated design constraints, you must use and edit XDC files directly. For more information, see Creating Synthesis Constraints.
You can open the Timing Constraints window using one of the following three options, as shown in the following figure:
- Select .
- In the Synthesis section of the Flow Navigator panel, select .
- In the Implementation section of the Flow Navigator panel, select .
The Timing Constraints window displays the timing constraints in memory, in either the same sequence as in the XDC files and Tcl scripts, or the same sequence in which you entered them in the Tcl Console.
Some of the constraints cannot be edited from this window. They are marked with the XDC No Edit icon .