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Answers to Top FAQs
1. FPGA Simulation Basics
2. Siemens EDA QuestaSim* Simulator Support
3. Synopsys VCS* and VCS MX Support
4. Aldec Active-HDL and Riviera-PRO Support
5. Cadence Xcelium* Parallel Simulator Support
6. Quartus® Prime Pro Edition User Guide Third-party Simulation Archive
A. Quartus® Prime Pro Edition User Guides
1.1. FPGA Simulation Essential Elements
1.2. Overview of Simulation Tool Flow
1.3. Simulation Tool Flow
1.4. Supported Simulation Flows
1.5. Supported Hardware Description Languages
1.6. Supported Simulation Types
1.7. Supported Simulators
1.8. Post-Fit Simulation Support by FPGA Family
1.9. Automating Simulation with the Run Simulation Feature
1.10. FPGA Simulation Basics Revision History
1.9.2.1. Specifying Required Simulation Settings for Run Simulation (Batch Mode)
1.9.2.2. Optional Simulation Settings for Run Simulation (Batch Mode)
1.9.2.3. Launching Simulation with the Run Simulation Feature
1.9.2.4. Running RTL Simulation using Run Simulation
1.9.2.5. Output Directories and Files for Run Simulation
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2.2.1. 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 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.