Critical Issue
Description
If you simulate an ALTMEMPHY-based megafunction as part of a Qsys system, the simulator might generate the following error:
Instantiation of "stratixiii_ddio_in" failed.
Resolution
Add the following global assignment to the Quartus II IP File (.qip) generated by Qsys:
set_global_assignment -name EDA_DESIGN_EXTRA_ALTERA_SIM_LIB
stratixiii -section_id eda_simulation