Keywords: FPGA Express, Foundation Express, Edit Constraints, View Results, license, demo, base, standard
General Description: The Constraints GUI in Foundation Express is not available with Demo, Base or University Student licenses. It is only available for Standard or University Professor licenses.
This spreadsheet is accessed by first hilighting an Implementation or Optimization in the Chips window. Then select Synthesis -> Edit Constraints or right click and choose Edit Constraints (Implementation) or View Results (Optimization).
If this option is greyed out, there are two possible causes:
If you have a Demo, Base or University Student license, this spreadsheet is not available to you. The only way to access this GUI is to update the license.
If you have a Standard or University Professor license, then this feature has not been added to your license. (Xilinx Solution 3480) describes the ways to access this license feature.