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AR# 17944

6.1i PACE - Unrecognized constraints are deleted

Description

Keywords: unrecognized, constraints, deleted, delete

Urgency: Standard

General Description:
I launch PACE and read in the UCF file. I then create new constraints and save the UCF file. After implementation, some of the original constraints are not implemented; I open the UCF file and see that PACE removed some of my original constraints.

Solution

This problem has been fixed in the latest 6.1i Service Pack available at:
http://support.xilinx.com/support/techsup/sw_updates
The first service pack containing the fix is 6.1i Service Pack 1.

You can also work around this issue by opening the "__place.ucf" file and copying the original constraint into the new UCF.
AR# 17944
Date Created 09/05/2003
Last Updated 03/27/2007
Status Archive
Type General Article