Internal Error: Sub-system: CDB_ATOM, File: /quartus/db/cdb_atom/cdb_atom_sys.cpp, Line: 3572 - Internal Error: Sub-system: CDB_ATOM, File: /quartus/db/cdb_atom/cdb_atom_sys.cpp, Line: 3572 Description Due to a problem in the Quartus® Prime software version 15.1, you may see this internal error when you have the post map view netlist viewer and the chip planner open at the same time. Resolution To avoid this error, do not open the post map view netlist viewer and the chip planner at the same time. This problem is scheduled to be fixed in a future release of the Quartus Prime software. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']