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MODELSIM VLOG: ERROR: ../../../<logiblox_module.v>: Instantiation of 'X_OR' failed (design unit not found)
Record #6540
Product Family: Software
Product Line: Model Technology
Product Part: Modelsim
Product Version: 5.2
Problem Title:
MODELSIM VLOG: ERROR: ../../../<logiblox_module.v>: Instantiation of 'X_OR' failed (design
unit not found)
Problem Description:
Urgency: Standard
When simulating Verilog LogiBLOX modules using Modelsim Vlog,
several of the following types of error messages are issued:
ERROR: ../../../<logiblox_module.v>: Instantiation of 'X_OR'
failed (design unit not found)
Solution 1:
Please note that for Verilog simulation, the LogiBLOX modules use the
SIMPRIMS library. The user must include the SIMPRIM-based libraries
when simulation LogiBLOX modules. In addition to the SIMPRIM library,
if the user has instantiated cells from the device library, then the
UNISIM library must also be included.
vsim -L simprims_ver -L unisims_ver test
Please see (Xilinx Solution 2561) on how to map the Xilinx Verilog libraries.
End of Record #6540 - Last Modified: 09/02/99 11:17 |