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1. Answers to Top FAQs
2. Intel FPGA Simulation Basics
3. Questa* Intel® FPGA Edition, ModelSim* , and QuestaSim* Simulator Support
4. Synopsys VCS* and VCS MX Support
5. Aldec Active-HDL and Riviera-PRO Support
6. Cadence Xcelium* Parallel Simulator Support
7. Intel® Quartus® Prime Pro Edition User Guide Third-party Simulation Archive
A. Intel® Quartus® Prime Pro Edition User Guides
3.1. Quick Start Example (ModelSim with Verilog)
3.2. Questa* Intel® FPGA Edition, ModelSim, and QuestaSim Simulator Guidelines
3.3. ModelSim Simulation Setup Script Example
3.4. Sourcing ModelSim* or QuestaSim Simulator Setup Scripts
3.5. Unsupported Features
3.6. Questa* Intel® FPGA Edition, ModelSim* , and QuestaSim* Simulator Support Revision History
3.2.1. Using Questa* Intel® FPGA Edition Precompiled Libraries
3.2.2. Passing Parameter Information from Verilog HDL to VHDL
In-line Parameter Passing Example
3.2.3. Viewing Simulation Messages
3.2.4. Generating Signal Activity Data for Power Analysis
3.2.5. Viewing Simulation Waveforms
3.2.6. Simulating with Questa* Intel® FPGA Edition Waveform Editor
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3.2.2. Passing Parameter Information from Verilog HDL to VHDL
You must use in-line parameters to pass values from Verilog HDL to VHDL.
By default, the x_on_violation_option logic option is enabled for all design registers, resulting in an output of “X” at timing violation. To disable “X” propagation at timing violations on a specific register, disable the x_on_violation_option logic option for the specific register, as shown in the following example from the Intel® Quartus® Prime Settings File (.qsf).
set_instance_assignment -name X_ON_VIOLATION_OPTION OFF -to \ <register_name>
In-line Parameter Passing Example
lpm_add_sub#(.lpm_width(12), .lpm_direction("Add"), .lpm_type("LPM_ADD_SUB"), .lpm_hint("ONE_INPUT_IS_CONSTANT=NO,CIN_USED=NO" )) lpm_add_sub_component ( .dataa (dataa), .datab (datab), .result (sub_wire0) );
Note: The sequence of the parameters depends on the sequence of the GENERIC in the VHDL component declaration.