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  3. AR# 5543: 1.5i PAR - Placement error related to use of carry logic in guided PAR.

AR# 5543

1.5i PAR - Placement error related to use of carry logic in guided PAR.

Description

ERROR:x45pl:38 - Carry logic cannot be placed due to a conflict in
location constraints. The required placement for the carry logic chain is as follows:

This occurs in both exact and leverage mode.

Solution

A fix for this problem is included in the 1.5i Service Pack 1. For details
on this Service Pack see http://www.xilinx.com/techdocs/5514.htm
AR# 5543
Date 10/21/2008
Status Archive
Type General Article