Intel® Quartus® Prime Standard Edition User Guide: Third-party Simulation

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ID 683080
Date 11/07/2022
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Document Table of Contents
Document Table of Contents x
1. Simulating Intel FPGA Designs 2. Questa* Intel® FPGA Edition, ModelSim® , and Questa* Simulator Support 3. Synopsys VCS* and VCS MX Support 4. Cadence Simulator Support 55.4. Aldec Active-HDL* and Riviera-PRO* Support A. Intel® Quartus® Prime Standard Edition User Guides
1. Simulating Intel FPGA Designs x
1.1. Simulator Support 1.2. Simulation Levels 1.3. HDL Support 1.4. Simulation Flows 1.5. Preparing for Simulation 1.6. Simulating Intel® FPGA IP Cores 1.7. Using NativeLink Simulation ( Intel® Quartus® Prime Standard Edition) 1.8. Running a Simulation (Custom Flow) 1.9. Simulating Intel FPGA Designs Revision History
1.5. Preparing for Simulation x
1.5.1. Compiling Simulation Models
1.6. Simulating Intel® FPGA IP Cores x
1.6.1. Generating IP Simulation Files
1.6.1. Generating IP Simulation Files x
1.6.1.1. Generating IP Functional Simulation Models ( Intel® Quartus® Prime Standard Edition)
1.7. Using NativeLink Simulation ( Intel® Quartus® Prime Standard Edition) x
1.7.1. Setting Up NativeLink Simulation ( Intel® Quartus® Prime Standard Edition) 1.7.2. Running RTL Simulation (NativeLink Flow) 1.7.3. Running Gate-Level Simulation (NativeLink Flow)
2. Questa* Intel® FPGA Edition, ModelSim® , and Questa* Simulator Support x
2.1. Quick Start Example (ModelSim with Verilog) 2.2. Questa* Intel® FPGA Edition, ModelSim, and Questa Simulator Guidelines 2.3. ModelSim Simulation Setup Script Example 2.4. Unsupported Features 2.5. Questa* Intel® FPGA Edition, ModelSim® , and Questa* Simulator Support Revision History
2.2. Questa* Intel® FPGA Edition, ModelSim, and Questa Simulator Guidelines x
2.2.1. Using Questa* Intel® FPGA Edition Precompiled Libraries 2.2.2. Disabling Timing Violation on Registers 2.2.3. Passing Parameter Information from Verilog HDL to VHDL 2.2.4. Increasing Simulation Speed in ModelSim and Questa Simulators 2.2.53.2.15.2.2. Simulating Transport Delays2.2.53.2.15.2.2. Simulating Transport Delays2.2.53.2.15.2.2. Simulating Transport Delays 2.2.6. Viewing Simulation Messages 2.2.7. Generating Power Analysis Files 2.2.8. Viewing Simulation Waveforms 2.2.9. Simulating with Questa* Intel® FPGA Edition Waveform Editor
3. Synopsys VCS* and VCS MX Support x
3.1. Quick Start Example (VCS with Verilog) 3.2. VCS and VCS MX Guidelines 3.3. VCS Simulation Setup Script Example 3.4. Synopsys VCS* and VCS MX Support Revision History
3.2. VCS and VCS MX Guidelines x
2.2.53.2.15.2.2. Simulating Transport Delays2.2.53.2.15.2.2. Simulating Transport Delays2.2.53.2.15.2.2. Simulating Transport Delays 3.2.2. Disabling Timing Violation on Registers 3.2.3. Generating Power Analysis Files
4. Cadence Simulator Support x
4.1. Quick Start Example (NC-Verilog) 4.2. Using GUI or Command-Line Interfaces 4.3. Cadence Incisive Enterprise (IES) Guidelines 4.4. IES Simulation Setup Script Example 4.5. Cadence Simulator Support Revision History
4.3. Cadence Incisive Enterprise (IES) Guidelines x
4.3.1. Elaborating Your Design 4.3.2. Back-Annotating Simulation Timing Data (VHDL Only) 4.3.3. Disabling Timing Violation on Registers 4.3.4. Simulating Pulse Reject Delays 4.3.5. Viewing Simulation Waveforms
55.4. Aldec Active-HDL* and Riviera-PRO* Support x
5.1. Quick Start Example (Active-HDL VHDL) 5.2. Aldec Active-HDL and Riviera-PRO Guidelines 5.3. Using Simulation Setup Scripts 55.4. Aldec Active-HDL* and Riviera-PRO* Support
5.2. Aldec Active-HDL and Riviera-PRO Guidelines x
5.2.1. Compiling SystemVerilog Files 2.2.53.2.15.2.2. Simulating Transport Delays2.2.53.2.15.2.2. Simulating Transport Delays2.2.53.2.15.2.2. Simulating Transport Delays 5.2.3. Disabling Timing Violation on Registers
1. Simulating Intel FPGA Designs
2. Questa* Intel® FPGA Edition, ModelSim® , and Questa* Simulator Support
3. Synopsys VCS* and VCS MX Support
4. Cadence Simulator Support
55.4. Aldec Active-HDL* and Riviera-PRO* Support
A. Intel® Quartus® Prime Standard Edition User Guides

4.3.3. Disabling Timing Violation on Registers

In certain situations, you may want to ignore timing violations on registers and disable the “X” propagation that occurs. For example, this technique may be helpful to eliminate timing violations in internal synchronization registers in asynchronous clock-domain crossing. Intel® Arria® 10 devices do not support timing simulation.

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>

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