AR# 52912: PlanAhead - CONFIG PROHIBIT constraints applied in a UCF file are not shown on the prohibited sites
AR# 52912
PlanAhead - CONFIG PROHIBIT constraints applied in a UCF file are not shown on the prohibited sites
Description
I have a UCF file with several CONFIG PROHIBIT constraints used to prevent locations from being used.Some of the prohibited sites have a prohibit (do not enter) symbol shown in the Device layout.However, many do not.
Am I doing something wrong? Are the constraints still used?
Solution
The constraints should still be used but are not visually shown with the symbol. Check the sites in question to be sure they have the PROHIBIT == 1 attribute. This issue has been seen when the CONFIG PROHIBIT constraint uses a wildcard (asterisk) or a comma delimited values or in ranges.