Intel® Quartus® Prime Standard Edition User Guide: PCB Design Tools

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ID 683619
Date 9/24/2018
Public
Document Table of Contents
Document Table of Contents x
1. Simultaneous Switching Noise (SSN) Analysis and Optimizations 2. Signal Integrity Analysis with Third-Party Tools 3. Mentor Graphics* PCB Design Tools Support 4. Cadence PCB Design Tools Support 5. Reviewing Printed Circuit Board Schematics with the Intel® Quartus® Prime Software A. Intel® Quartus® Prime Standard Edition User Guides
1. Simultaneous Switching Noise (SSN) Analysis and Optimizations x
1.1. Simultaneous Switching Noise (SSN) Analysis and Optimizations 1.2. Definitions 1.3. Understanding SSN 1.4. SSN Estimation Tools 1.5. SSN Analysis Overview 1.6. Design Factors Affecting SSN Results 1.7. Optimizing Your Design for SSN Analysis 1.8. Performing SSN Analysis and Viewing Results 1.9. Decreasing Processing Time for SSN Analysis 1.10. Scripting Support 1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History
1.5. SSN Analysis Overview x
1.5.1. Performing Early Pin-Out SSN Analysis 1.5.2. Performing Final Pin-Out SSN Analysis
1.5.1. Performing Early Pin-Out SSN Analysis x
1.5.1.1. Performing Early Pin-Out SSN Analysis with the SSN Analyzer
1.7. Optimizing Your Design for SSN Analysis x
1.7.1. Optimizing Pin Placements for Signal Integrity 1.7.2. Specifying Board Trace Model Settings Tcl Commands for Specifying Board Trace Models 1.7.3. Defining PCB Layers and PCB Layer Thickness 1.7.4. Specifying Signal Breakout Layers 1.7.5. Creating I/O Assignments 1.7.6. Decreasing Pessimism in SSN Analysis 1.7.7. Excluding Pins as Aggressor Signals
1.8. Performing SSN Analysis and Viewing Results x
1.8.1. Understanding the SSN Reports 1.8.2. Viewing SSN Analysis Results in the Pin Planner
1.8.1. Understanding the SSN Reports x
1.8.1.1. Summary Report 1.8.1.2. Output Pins Report and Input Pins Report 1.8.1.3. Unanalyzed Pins Report 1.8.1.4. Confidence Metric Details
1.10. Scripting Support x
1.10.1. Optimizing Pin Placements for Signal Integrity 1.10.2. Defining PCB Layers and PCB Layer Thickness 1.10.3. Specifying Signal Breakout Layers 1.10.4. Decreasing Pessimism in SSN Analysis 1.10.5. Performing SSN Analysis
2. Signal Integrity Analysis with Third-Party Tools x
2.1. Signal Integrity Analysis with Third-Party Tools 2.2. I/O Model Selection: IBIS or HSPICE 2.3. FPGA to Board Signal Integrity Analysis Flow 2.4. Simulation with IBIS Models 2.5. Simulation with HSPICE Models 1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History
2.1. Signal Integrity Analysis with Third-Party Tools x
2.1.1. Signal Integrity Simulations with HSPICE and IBIS Models
2.3. FPGA to Board Signal Integrity Analysis Flow x
2.3.1. Create I/O and Board Trace Model Assignments 2.3.2. Output File Generation 2.3.3. Customize the Output Files 2.3.4. Set Up and Run Simulations in Third-Party Tools 2.3.5. Interpret Simulation Results
2.4. Simulation with IBIS Models x
2.4.1. Elements of an IBIS Model 2.4.2. Creating Accurate IBIS Models 2.4.3. Design Simulation Using the Mentor Graphics* HyperLynx* Software 2.4.4. Configuring LineSim to Use Intel IBIS Models 2.4.5. Integrating Intel IBIS Models into LineSim Simulations 2.4.6. Running and Interpreting LineSim Simulations
2.4.2. Creating Accurate IBIS Models x
2.4.2.1. Download IBIS Models 2.4.2.2. Generate Custom IBIS Models with the IBIS Writer
2.5. Simulation with HSPICE Models x
2.5.1. Supported Devices and Signaling 2.5.2. Accessing HSPICE Simulation Kits 2.5.3. The Double Counting Problem in HSPICE Simulations 2.5.4. HSPICE Writer Tool Flow 2.5.5. Running an HSPICE Simulation 2.5.6. Interpreting the Results of an Output Simulation 2.5.7. Interpreting the Results of an Input Simulation 2.5.8. Viewing and Interpreting Tabular Simulation Results 2.5.9. Viewing Graphical Simulation Results 2.5.10. Making Design Adjustments Based on HSPICE Simulations 2.5.11. Sample Input for I/O HSPICE Simulation Deck 2.5.12. Sample Output for I/O HSPICE Simulation Deck 2.5.13. Advanced Topics
2.5.3. The Double Counting Problem in HSPICE Simulations x
2.5.3.1. Defining the Double Counting Problem 2.5.3.2. The Solution to Double Counting
2.5.4. HSPICE Writer Tool Flow x
2.5.4.1. Applying I/O Assignments 2.5.4.2. Enabling HSPICE Writer 2.5.4.3. Enabling HSPICE Writer Using Assignments 2.5.4.4. Naming Conventions for HSPICE Files 2.5.4.5. Invoking HSPICE Writer 2.5.4.6. Invoking HSPICE Writer from the Command Line 2.5.4.7. Customizing Automatically Generated HSPICE Decks
2.5.11. Sample Input for I/O HSPICE Simulation Deck x
2.5.11.1. Header Comment 2.5.11.2. Simulation Conditions 2.5.11.3. Simulation Options 2.5.11.4. Constant Definition 2.5.11.5. Buffer Netlist 2.5.11.6. Drive Strength 2.5.11.7. I/O Buffer Instantiation 2.5.11.8. Board Trace and Termination 2.5.11.9. Stimulus Model 2.5.11.10. Simulation Analysis
2.5.12. Sample Output for I/O HSPICE Simulation Deck x
2.5.12.1. Header Comment 2.5.12.2. Simulation Conditions 2.5.12.3. Simulation Options 2.5.12.4. Constant Definition 2.5.12.5. I/O Buffer Netlist 2.5.12.6. Drive Strength 2.5.12.7. Slew Rate and Delay Chain 2.5.12.8. I/O Buffer Instantiation 2.5.12.9. Board and Trace Termination 2.5.12.10. Double-Counting Compensation Circuitry 2.5.12.11. Simulation Analysis
2.5.13. Advanced Topics x
2.5.13.1. PVT Simulations 2.5.13.2. Hold Time Analysis 2.5.13.3. I/O Voltage Variations 2.5.13.4. Correlation Report
3. Mentor Graphics* PCB Design Tools Support x
3.1. FPGA-to-PCB Design Flow 3.2. Integrating with I/O Designer 3.3. Integrating with DxDesigner 3.4. Analyzing FPGA Simultaneous Switching Noise (SSN) 3.5. Scripting API 1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History
3.2. Integrating with I/O Designer x
3.2.1. Generating Pin Assignment Files 3.2.2. I/O Designer Settings 3.2.3. Transferring I/O Assignments 3.2.4. Updating I/O Designer with Intel® Quartus® Prime Pin Assignments 3.2.5. Updating Intel® Quartus® Prime with I/O Designer Pin Assignments 3.2.6. Generating Schematic Symbols in I/O Designer 3.2.7. Exporting Schematic Symbols to DxDesigner
3.2.6. Generating Schematic Symbols in I/O Designer x
3.2.6.1. Generating Schematic Symbols
3.3. Integrating with DxDesigner x
3.3.1. DxDesigner Project Settings 3.3.2. Creating Schematic Symbols in DxDesigner
4. Cadence PCB Design Tools Support x
4.1. Cadence PCB Design Tools Support 4.2. Product Comparison 4.3. FPGA-to-PCB Design Flow 4.4. Setting Up the Intel® Quartus® Prime Software 4.5. FPGA-to-Board Integration with the Cadence Allegro Design Entry HDL Software 4.6. FPGA-to-Board Integration with Cadence Allegro Design Entry CIS Software 1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History
4.3. FPGA-to-PCB Design Flow x
4.3.1. Integrating Intel FPGA Design 4.3.2. Performing Simultaneous Switching Noise (SSN) Analysis of Your FPGA
4.4. Setting Up the Intel® Quartus® Prime Software x
4.4.1. Generating a .pin File
4.5. FPGA-to-Board Integration with the Cadence Allegro Design Entry HDL Software x
4.5.1. Creating Symbols 4.5.2. Instantiating the Symbol in the Cadence Allegro Design Entry HDL Software
4.5.1. Creating Symbols x
4.5.1.1. Cadence Allegro PCB Librarian Part Developer Tool
4.5.1.1. Cadence Allegro PCB Librarian Part Developer Tool x
4.5.1.1.1. Cadence Allegro PCB Librarian Part Developer Tool in the Design Flow 4.5.1.1.2. Import and Export Wizard 4.5.1.1.3. Editing and Fracturing Symbol 4.5.1.1.4. Updating FPGA Symbols
4.6. FPGA-to-Board Integration with Cadence Allegro Design Entry CIS Software x
4.6.1. Creating a Cadence Allegro Design Entry CIS Project 4.6.2. Generating a Part 4.6.3. Generating Schematic Symbol 4.6.4. Splitting a Part 4.6.5. Instantiating a Symbol in a Design Entry CIS Schematic 4.6.6. Intel Libraries for the Cadence Allegro Design Entry CIS Software
4.6.6. Intel Libraries for the Cadence Allegro Design Entry CIS Software x
4.6.6.1. Using the Intel-provided Libraries with your Cadence Allegro Design Entry CIS Project
5. Reviewing Printed Circuit Board Schematics with the Intel® Quartus® Prime Software x
5.1. Reviewing Intel® Quartus® Prime Software Settings 5.2. Reviewing Device Pin-Out Information in the Fitter Report 5.3. Reviewing Compilation Error and Warning Messages 5.4. Using Additional Intel® Quartus® Prime Software Features 5.5. Using Additional Intel® Quartus® Prime Software Tools 1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History1.112.63.64.75.6. Document Revision History
5.1. Reviewing Intel® Quartus® Prime Software Settings x
5.1.1. Device and Pins Options Dialog Box Settings
5.1.1. Device and Pins Options Dialog Box Settings x
5.1.1.1. Configuration Settings 5.1.1.2. Unused Pin Settings 5.1.1.3. Dual-Purpose Pins Settings 5.1.1.4. Voltage Settings 5.1.1.5. Error Detection CRC Settings
5.5. Using Additional Intel® Quartus® Prime Software Tools x
5.5.1. Pin Planner 5.5.2. SSN Analyzer
1. Simultaneous Switching Noise (SSN) Analysis and Optimizations
2. Signal Integrity Analysis with Third-Party Tools
3. Mentor Graphics* PCB Design Tools Support
4. Cadence PCB Design Tools Support
5. Reviewing Printed Circuit Board Schematics with the Intel® Quartus® Prime Software
A. Intel® Quartus® Prime Standard Edition User Guides

1.7.2. Specifying Board Trace Model Settings

The SSN Analyzer uses circuit models to determine voltage noise during SSN analysis. The circuit topology is incomplete without board trace information and PCB layer information.

To accurately compute the SSN in your FPGA device, you must describe the board trace and PCB layer parameters in your design. If you do not specify some or all the board trace parameters and PCB layer information, the SSN Analyzer uses default parameters, which set the SSN confidence level to low.

The SSN Analyzer requires board trace models such as termination resistors, pin loads (capacitance), and transmission line parameters. You can define the board circuit models—or board trace models, in the Intel® Quartus® Prime software.

You can define an overall board trace model for each I/O standard in your design. This overall model is the default model for all pins that use a particular I/O standard. After configuring the overall board trace model, you can customize the model for specific pins.

Intel® Quartus® Prime software uses the parameters you specify for the board trace model during advanced I/O timing analysis with the Timing Analyzer.

If you already specified the board trace models as part of your advanced I/O timing assignments, Intel® Quartus® Prime software uses the same parameters during SSN analysis.

All the assignments for board trace models you specify are saved to the .qsf file. You can also use Tcl commands to create board trace model assignments.

Tcl Commands for Specifying Board Trace Models

set_instance_assignment -name BOARD_MODEL_TLINE_L_PER_LENGTH "3.041E-7" -to e[0]
set_instance_assignment -name BOARD_MODEL_TLINE_LENGTH 0.1391 -to e[0]
set_instance_assignment -name BOARD_MODEL_TLINE_C_PER_LENGTH "1.463E-10" -to e[0]

The best way to calculate transmission line parameters is to use a two-dimensional solver to estimate the inductance per inch and capacitance per inch for the transmission line. You can obtain the termination resistor topology information from the PCB schematics. The near-end and far-end pin load (capacitance) values can be obtained from the PCB schematic and other device data sheets. For example, if you know that an FPGA pin is driving a DIMM, you can obtain the far-end loading information in the data sheet for your target device.

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