The timing constraints spreadsheet displays the details of all existing constraints of a specific type. Use the timing constraints spreadsheet to review and edit constraint options.
The two last columns of the panel show:
- Source File
- The name of the XDC file or Tcl script the constraint comes from.
- Scoped Cell
- The name of the current instance when the constraint was applied. This name usually corresponds to an IP instance which is delivered with dedicated constraints. For more information, see Constraints Scoping.
A new constraint of the selected type can be created by double clicking the last line of the spreadsheet. The corresponding constraint creation dialog opens and lets you fill in the details of the new constraint. Click OK to apply the constraint in memory and close the window. A new line in the spreadsheet shows the new constraint information.
You can edit any existing constraint by modifying the values directly in the spreadsheet. After you have finished editing, click Apply to apply the modified constraints in memory.