AR# 15705: 5.1i Floorplanner - The "Group" function for area group constraints does not work, resulting in "ERROR:NgdBuild:753..."
5.1i Floorplanner - The "Group" function for area group constraints does not work, resulting in "ERROR:NgdBuild:753..."
Keywords: Floorplanner, group, area group, error, NGDBuild, 753, translate
General Description: When I use Floorplanner to group logics in a hierarchy window and assign AREA_GROUP constraints to a user-defined group, re-implementation of the design causes NGDBuild to report the following error messages:
"ERROR:NgdBuild:753 - Line XX in 'tester.ucf': Could not find instance(s) 'XXX' in the design. To suppress this error specify the correct instance name or remove the constraint." "ERROR:Parsers:11 - Encountered unrecognized constraint while parsing." "ERROR:NgdBuild:19 - Errors found while parsing constraint file "tester.ucf"."
To work around this problem, manually modify the UCF to assign components to the area group.
Constraints written out by Floorplanner
AREA_GROUP "GRP0" RANGE = CLB_R1C1:CLB_R9C8 INST "GRP0" AREA_GROUP = "GROUP0";