Questa Intel FPGA Edition Simulation User Guide

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ID 730191
Date 6/07/2023
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Document Table of Contents
Document Table of Contents x
1. Answers to Top FAQs 2. Introduction to the Questa* Intel® FPGA Edition Simulator 3. Intel FPGA Simulation Basics 4. Simulating with Questa* Intel® FPGA Edition 5. Revision History for Questa Intel FPGA Edition Simulation User Guide A. Intel® Quartus® Prime Pro Edition User Guides
2. Introduction to the Questa* Intel® FPGA Edition Simulator x
2.1. Simulator Versions and Licensing 2.2. Accessing Siemens EDA-Provided Simulator Documentation 2.3. Document Prerequisites
3. Intel FPGA Simulation Basics x
3.1. Intel FPGA Simulation Essential Elements 3.2. Overview of Simulation Tool Flow 3.3. Simulation Tool Flow 3.4. Supported Simulation Types and Hardware Description Languages
3.2. Overview of Simulation Tool Flow x
3.2.1. Compilation Stage 3.2.2. Elaboration Stage 3.2.3. Simulation Stage
3.3. Simulation Tool Flow x
3.3.1. Specifying Logical Libraries 3.3.2. Compiling Files Into Library Directories 3.3.3. The Intel® Quartus® Prime Simulation Library 3.3.4. Understanding Elaboration 3.3.5. Commands To Configure and Run Simulation 3.3.6. Intel FPGA Simulation Generic Workflow
3.3.1. Specifying Logical Libraries x
3.3.1.1. Why Do We Need Logical Library Names?
3.3.2. Compiling Files Into Library Directories x
3.3.2.1. Inputs to Compilation Commands 3.3.2.2. Order of Files for Compilation Commands 3.3.2.3. Compilation Command Line Options 3.3.2.4. Module Definitions in Library Directories
3.3.3. The Intel® Quartus® Prime Simulation Library x
3.3.3.1. The Intel® Quartus® Prime Simulation Library Compiler 3.3.3.2. Running the Simulation Library Compiler in a Terminal 3.3.3.3. Running the Simulation Library Compiler in the GUI 3.3.3.4. Finding Logical Library Names in Simulation Library Compiler Output
3.3.4. Understanding Elaboration x
3.3.4.1. Elaboration Binding Phase 3.3.4.2. Elaboration Checks 3.3.4.3. Elaboration Options
3.4. Supported Simulation Types and Hardware Description Languages x
3.4.1. Supported Simulation Types 3.4.2. Supported Hardware Description Languages
4. Simulating with Questa* Intel® FPGA Edition x
4.1. Types of Questa* Intel® FPGA Edition Commands 4.2. Commands to Invoke Questa* Intel® FPGA Edition 4.3. Commands to Compile, Elaborate, and Simulate 4.4. Why You Should Only Use Precompiled Questa Intel FPGA Edition Libraries 4.5. Generating a msim_setup.tcl Simulation Script for RTL Simulation 4.6. Performing RTL Simulation with Questa* Intel® FPGA Edition 4.7. Performing Gate-Level Simulation with Questa* Intel® FPGA Edition
4.3. Commands to Compile, Elaborate, and Simulate x
4.3.1. Compilation Command Examples 4.3.2. Finding Logical Library Names in Simulation Library Compiler Output 4.3.3. Elaboration Command Examples 4.3.4. Simulation Command Examples 4.3.5. Complete Tcl Script Example
4.3.1. Compilation Command Examples x
4.3.1.1. Compilation Example 1: Compile File foo.sv into a Logical Library 4.3.1.2. Compilation Example 2: Compile File design1.sv to Default Library (work) 4.3.1.3. Compilation Example 3: Compile All .sv Files into Logical Library foo 4.3.1.4. Compilation Example 4: Compile File foo.sv into Work with Verilog Macro FAST Set to 1 4.3.1.5. Compilation Example 5: File my_pkg.sv Defines SystemVerilog Package my_pkg and File foo.sv Imports my_pkg 4.3.1.6. Compilation Example 6: File my_pkg.sv Defines Systemverilog Package my_pkg and File foo.sv Imports my_pkg
4.3.3. Elaboration Command Examples x
4.3.3.1. Elaboration Example 1: Elaborate the Test Top-level Testbench Module 4.3.3.2. Elaboration Example 2: Elaborate the Test Top-level Testbench Module and Preserve All Signals 4.3.3.3. Elaboration Example 3: Elaborate Top-Level Testbench Module my_test
4.3.4. Simulation Command Examples x
4.3.4.1. Simulation Example 1: Run Simulation Until the End, while Capturing Waveforms of All Top-Level Signals in the Testbench 4.3.4.2. Simulation Example 2: Run Simulation for 30 Milliseconds, while Capturing Waveforms of All Top-Level Signals in the Hierarchy 4.3.4.3. Simulation Example 3: Run Simulation Until the End, while Capturing Waveforms of Top-Level Design Instance
4.5. Generating a msim_setup.tcl Simulation Script for RTL Simulation x
4.5.1. Commands Defined in msim_setup.tcl 4.5.2. Example Using msim_setup.tcl without Customization 4.5.3. Example my_sim.tcl Simulation Script 4.5.4. Passing In Custom Compilation and Elaboration Options for msim_setup.tcl 4.5.5. Finding All Custom Variables
4.6. Performing RTL Simulation with Questa* Intel® FPGA Edition x
4.6.1. Simulating an RTL Design without IP Variants or Platform Designer Systems 4.6.2. Simulating an RTL Design that has IP Variants or Platform Designer Systems
4.6.2. Simulating an RTL Design that has IP Variants or Platform Designer Systems x
4.6.2.1. Compilation Stage - Simulation with IP 4.6.2.2. Elaboration Stage - Simulation with IP 4.6.2.3. Simulation Stage - Simulation with IP
4.6.2.1. Compilation Stage - Simulation with IP x
4.6.2.1.1. Customizing the Generated Simulation Script
4.7. Performing Gate-Level Simulation with Questa* Intel® FPGA Edition x
4.7.1. Post-Synthesis and Post-Fit Netlists for Simulation 4.7.2. Files Required for Gate-Level Simulation 4.7.3. Step 1: Generate Gate-Level Netlists for Simulation 4.7.4. Step 2: Identify Simulation Files and Compilation Options for Gate-Level Simulation 4.7.5. Step 3: Determine Elaboration Options for Gate-Level Simulation 4.7.6. Step 4: Assemble and Run the Gate-Level Simulation Script
5. Revision History for Questa Intel FPGA Edition Simulation User Guide x
5.1. Questa Intel FPGA Edition Simulation User Guide Archive
1. Answers to Top FAQs
2. Introduction to the Questa* Intel® FPGA Edition Simulator
3. Intel FPGA Simulation Basics
4. Simulating with Questa* Intel® FPGA Edition
5. Revision History for Questa Intel FPGA Edition Simulation User Guide
A. Intel® Quartus® Prime Pro Edition User Guides

4.3.3.2. Elaboration Example 2: Elaborate the Test Top-level Testbench Module and Preserve All Signals

The following example is the same as Elaboration Example 1, except that the following example preserves all signals so that you can later view their waveforms during or after simulation.

You can elaborate the testbench module test with the following single Tcl command: 

vsim -voptargs=”+acc” -L work -L lib1 -L lib2 \
     -L top_lib top_lib.test

The voptargs option value '+acc' directs vsim to preserve all signals. In general, preserving all signals is not a best practice because it can slow down simulation. You should only preserve a subset of signals whenever possible. Refer to the Siemens EDA Questa Intel FPGA Edition User Guide for various options to preserve a subset of signals in the testbench hierarchy.

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