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AR# 17252

5.2i Constraints Editor - LVTTL and LVCMOS33 standards are not available for Spartan-3


Urgency: Urgent

General Description:

The Constraints Editor does not include the LVTTL and LVCMOS33 standards for Spartan-3. These standards do not appear in the GUI pull-down menu in the Constraints Editor.


To work around this issue, perform one of the following:

- Run PACE (or click on "Assign Package Area" within ISE); these standards are available in PACE.

- Add the constraints manually in the FPGA Editor.

This issue is fixed in the 6.1i software release, which is scheduled for release September 2003.

AR# 17252
Date Created 09/03/2007
Last Updated 01/18/2010
Status Archive
Type General Article