AR# 1132: Foundation Simulator - "Invalid chip descriptor" error while loading netlist
Foundation Simulator - "Invalid chip descriptor" error while loading netlist
Keywords: invalid, chip, descriptor
General Description: While loading a netlist for functional simulation, the following error appears in the Foundation Project Manager:
SIM : Invalid chip descriptor
This error is also issued when the netlist for one of the macros is corrupted.
Look in the Foundation Project Manager to determine which macro was being loaded when the error was issued. Open this macro in the Schematic Editor and make a minor change (e.g., move an I/O terminal). Save the macro and regenerate the netlist by selecting Options -> Create Netlist.
Symbols with pins of type PAS (passive) may also cause this error.
In the Symbol Editor, make sure that all symbol pins are of type IN, OUT, or HIZ (3-state).
One possible cause of this error is a user-created symbol that is of type "FPGA Symbol". This symbol type can only be used in board-level simulations.
Open the symbol in the Symbol Editor. Un-check the box in the upper right that is labeled "FPGA Symbol".