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# 15583

5.1i Floorplanner - Floorplanner reports numerous "Instance "x" has more than two area range constraints" warning messages before opening


Keywords: Floorplanner, overlap, area group, warning, instance, more, two, range

Urgency: Standard

General Description:
When my design contains non-rectangular area groups made by PACE, area groups containing block RAMs/multipliers, or overlapping constraints, Floorplanner reports the following warning numerous times:

"Warning: Instance "x" has more than two area range constraints."


Floorplanner will generate these warning messages when it loads a design with non-rectangular area groups. Using Floorplanner to modify a non- rectangular area group will result in corruption of the UCF. If possible, use PACE to modify area group constraints.

Updates in 5.1i Service Pack 3 will enable the numerous warning messages to be logged.

This problem is fixed in the latest 5.1i Service Pack, available at:
The first service pack containing the fix is 5.1i Service Pack 3.
AR# 15583
Date Created 09/10/2002
Last Updated 03/06/2005
Status Archive
Type General Article