We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 6355

2.1i Constraints Editor - PULLUP/PULLDOWN constraints from the NGD file are not displayed.


General Description:

There is a PULLUP on the output net of a design (NGD file). If this PULLUP constraint is not in the UCF, then it is not displayed in the Constraints Editor window. (If this constraint is in the UCF, then it is displayed.)


Having the constraint in either the NGD file or the UCF will achieve the same results; however, the constraint may or may not appear in the Constraints Editor. Therefore, we recommend that you use the UCF, so that the constraint is visible and can be easily modified.

This is fixed in a future software release or service pack.

AR# 6355
Date 01/18/2010
Status Archive
Type General Article
Page Bookmarked