AR# 3216: M1.3.7 PAR: UCF LOC constraint on net does not override conflicting schematic pad constraint.
AR# 3216
M1.3.7 PAR: UCF LOC constraint on net does not override conflicting schematic pad constraint.
Description
The override does not work in M1.3 unless the constraint is on the same object (net or pad instance). In the failed case, the schematic LOC constraint is on the pad instance, but the overriding LOC constraint was placed on the net.
解决方案
This problem has been fixed for M1.4. Meanwhile, the work around is to override LOC constraints using the pad instance: