Getting Started with Quartus II Simulation Using the ModelSim
Contents
1. Operating Settings and Conditions Voltage Temperature Compilation Process Settings o Early Timing Estimate Incremental Compilation Physical Synthesis Optimizations EDA Netlist Writer settings E EDA Tool Settings A Design Entry Synthesis Format for output netlist Verilog HDL Time scale 1ps Tool name ModelSim Altera v Run gate4evel simulation automatically after compilation Timing Analysis Output directory simulation modelsim Map illegal HDL characters Enable glitch filtering Analysis amp Synthesis Settings Options for Power Estimation VHDL Input Verilog HDL Input Default Parameters Fitter Settings TimeQuest Timing Analyzer Assembler Design Assistant SignalTap II Logic Analyzer More EDA Netlist Writer Settings Logic Analyzer Interface PowerPlay Power Analyzer Settings NativeLink settings SSN Analyzer O None Compile test bench test_counter v Test Benches C Use script to set up simulation Generate Value Change Dump VCD file script O Script to compile test bench More NativeLink Settings 3 In the Tool name list select ModelSim Altera Ensure that Run gate level simulation automatically after compilation box is turned off 4 Under EDA Netlist Writer settings in the Format for output netlist list select Verilog HDL Ensure that the Map illegal HDL characters Enable glitch filtering and Generat2. again without manually recreating the stimulus waveforms To export the stimulus waveform as an HDL testbench perform the following steps 1 Click in the Wave window to ensure it is active 2 On the File menu point to Export and then click Waveform The Export Waveform dialog box appears Figure 1 8 Figure 1 8 Export Waveform Dialog Box RA Export Waveform Save As C Force File EVCDFile VHDL Testbench Verilog Testbench Start Time End Time Time Unit Design Unit Name counter File Name ces Browse In the Export Waveform dialog box under Save As select Verilog Testbench 3 4 For Start Time enter 0 for End Time enter 5000 and for Time Unit enter ns 5 In the File Name box type the name of your testbench or click the Browse button 6 Click OK Your testbench will be created in your lt Quartus II project folder gt simulation modelsim folder You can use the testbench file for the simulation of your Quartus II design Getting Started with Quartus Simulation Using the ModelSim Altera Software June 2011 Altera Corporation Getting Started with Quartus II Simulation Using the ModelSim Altera Software 1 9 Exporting Created Stimulus Waveforms as an HDL Testbench You can use NativeLink in the Quartus II software to start the ModelSim Altera software where you simulate your design with the exported testbench file St For more information about setting up the testbench with NativeLink r
3. and count from the counter design example are added in the Wave window where you can create stimulus waveforms for each signal to simulate the design In this example you will create stimulus waveforms for the clk and reset signals The count signal is not needed and can be deleted Getting Started with Quartus Simulation Using the ModelSim Altera Software June 2011 Altera Corporation Getting Started with Quartus II Simulation Using the ModelSim Altera Software Creating Stimulus Waveforms June 2011 Figure 1 3 Create Wave on the Shortcut Menu ty enog i yvital2000 ih rtlwork work Ji wt Cunavailal pi ia Mi Library iles fA Transcript Reading F ai do counter_ri if file ex vdel vlib rtl_worl wmap work rti Copying F a Modifying moc Warning Upde Simulate Simulate without Optimization Simulate with Full Optimization Simulate with Coverage Edit Refresh Recompile Optimize Update NS Delete Copy 32a New gt isin Properties vlog vlogOlcompat work work incdir F b ted With Quartus II Simulation counter count Model Technology ModelSim ALTERA vlog 6 6c Comniline manile rmmrer 3 Right click the count signal in the Wave window and then click Delete Creating the Clock Waveform 1 Right click the clk signal in the Wave window and then click Create Modify Wavef
4. 2 Drag the count signal from the Objects window to the Wave window 3 In the Transcript window type the command run a11 June 2011 Altera Corporation Getting Started with Quartus II Simulation Using the ModelSim Altera Software 1 8 Getting Started with Quartus II Simulation Using the ModelSim Altera Software Exporting Created Stimulus Waveforms as an HDL Testbench After you type the run a11 command the example counter design is simulated with the created stimulus waveforms for the clk and reset signals The clk signal is a continuous clock waveform The reset signal is asserted for the first 120 ns When the reset signal is deasserted after 120 ns the counter begins to increment once on each rising edge of clk The output signal count produces the simulated waveform in the Wave window adjacent to the stimulus waveforms Exporting Created Stimulus Waveforms as an HDL Testbench An HDL testbench file is typically written in the same hardware description language as your design and interacts with your design as an instantiated module An HDL testbench file is conceptually similar to a waveform like the one created in Creating Stimulus Waveforms on page 1 4 but because it is written in HDL it is able to accommodate more complexity and flexibility than a graphical waveform The stimulus waveforms you created for the simulation can be exported as a HDL testbench file You can then use the HDL testbench file to simulate your design
5. Getting Started with Quartus Il Simulation Using the ModelSim Altera Software User Guide N DTE RYAN 101 Innovation Drive San Jose CA 95134 www altera com UG 01102 1 0 Document last updated for Altera Complete Design Suite version Document publication date 11 0 June 2011 2011 Altera Corporation All rights reserved ALTERA ARRIA CYCLONE HARDCOPY MAX MEGACORE NIOS QUARTUS and STRATIX are Reg U S Pat amp Tm Off and or trademarks of Altera Corporation in the U S and other countries All other trademarks and service marks are the property of their respective holders as described at www altera com common legal html Altera warrants performance of its semiconductor products to current specifications in accordance with Altera s standard Warranty but reserves the right to make changes to any products and services at any time without notice Altera assumes no responsibility or liability arising out of the application or use of any information product or service described herein except as expressly agreed to in writing by Altera Altera quatity i customers are advised to obtain the latest version of device specifications before relying on any published information and before placing orders for products or 150 9001 2008 services NSAI Certified Getting Started with Quartus II Simulation Using the ModelSim Altera Software User Guide June 2011 Altera Corporation Getting Started with Quartus II Simul
6. ation JN DTE RYA Using the ModelSim Altera Software The NativeLink feature of the Quartus II software allows you to control the ModelSim Altera software from within the Quartus II software By connecting the two tools with the NativeLink feature the process of setting up your simulation is greatly streamlined allowing you to focus on the simulation itself This user guide provides instructions for getting started with Quartus II project simulation using the ModelSim Altera Starter Edition or ModelSim Altera Edition software and includes the following sections Prerequisites Starting the ModelSim Altera Software with the Quartus II Software Setting Up EDA Tool Options on page 1 1 Running ModelSim Altera from the Quartus II Software on page 1 4 E m 7 m Setting Up the Simulation on page 1 3 E m Creating Stimulus Waveforms on page 1 4 m Modifying Stimulus Waveforms on page 1 6 Starting Simulation on page 1 7 Exporting Created Stimulus Waveforms as an HDL Testbench on page 1 8 Prerequisites You should have met the following prerequisites before performing a simulation m Understanding of Verilog SystemVerilog or VHDL hardware description language m Completion of the Getting Started Tutorial in the Quartus II software Starting the ModelSim Altera Software with the Quartus Il Software To start the ModelSim Altera software follow these steps 1 Unz
7. ctrum eal License Setup Precision Synthesis zl Preferred Text Editor Processing Synplify sted Tooltip Settings Synplify Pro Messages Suppression Active HDL ES Colors Riviera PRO z Fonts ModelSim eS QuestaSim fee ModelSim Altera _ tools acds 11 0 modelsim_ae bin NCSim asa vcs kaa vcs MX ie PrimeTime PRA Use NativeLink with a Synplify Synplify Pro node locked license ok Cancel Heip 2 Click the Browse button to the right of ModelSim Altera in the EDA Tool list to specify the location of the ModelSim Altera executable The path is lt ModelSim Altera installation path gt bin Getting Started with Quartus II Simulation Using the ModelSim Altera Software June 2011 Altera Corporation Getting Started with Quartus II Simulation Using the ModelSim Altera Software 1 3 Starting the ModelSim Altera Software with the Quartus II Software Setting Up the Simulation This section guides you in setting up the simulation environment to run the ModelSim Altera simulator on your Quartus IT project To set up the simulation environment follow these steps 1 On the Assignments menu click Settings 2 In the Settings dialog box under EDA Tool Settings select Simulation The Simulation page appears Figure 1 2 Figure 1 2 Simulation Page Settings Dialog Box 2 Settings counter Category General Files Libraries Specify options for generating output files for use with other EDA tools E
8. e Value Change Dump VCD file script boxes are turned off 5 Under NativeLink settings select None T For more information about the Quartus II NativeLink feature refer to the Simulating Altera Designs chapter in volume 3 of the Quartus II Handbook June 2011 Altera Corporation Getting Started with Quartus II Simulation Using the ModelSim Altera Software 1 4 Getting Started with Quartus II Simulation Using the ModelSim Altera Software Running ModelSim Altera from the Quartus II Software Running ModelSim Altera from the Quartus II Software In this section you will use Quartus II software to generate the ModelSim Altera automation script do file and start the ModelSim Altera software The script then compiles the design files and you are ready for simulation Follow these steps 1 On the Processing menu point to Start and then click Start Analysis amp Elaboration 2 On the Tools menu point to Run EDA Simulation Tool and then click EDA RTL Simulation The Quartus II software starts the ModelSim Altera simulator Creating Stimulus Waveforms This section guides you in adding signals to the Wave window creating the clock waveform and creating the reset waveform Adding Signals to the Wave Window To add signals to the Wave window follow these steps 1 In the ModelSim Altera GUI expand Work in the Library window and then right click counter 2 Click Create Wave Figure 1 3 Three signals clk reset
9. efer to Setting Up Testbench Files Using the NativeLink Feature in Simulating Altera Designs June 2011 Altera Corporation Getting Started with Quartus II Simulation Using the ModelSim Altera Software 1 10 Getting Started with Quartus II Simulation Using the ModelSim Altera Software Exporting Created Stimulus Waveforms as an HDL Testbench Getting Started with Quartus Simulation Using the ModelSim Altera Software June 2011 Altera Corporation N DTE eYa Additional Information This section provides additional information about the document and Altera Document Revision History The following table shows the revision history for this document Date Version Changes June 2011 1 0 Initial release How to Contact Altera To locate the most up to date information about Altera products refer to the following table Contact 7 Contact Method Address Technical support Website www altera com support me Website www altera com training Technical training Email custrain altera com Product literature Website www altera com literature Non technical support General Email nacomp altera com Software Licensing Email authorization altera com Note to Table 1 You can also contact your local Altera sales office or sales representative Typographic Conventions The following table shows the typographic conventions this document uses Visual Cue Meaning Indicate c
10. ip the provided Quartus II design example project counter zip 2 Start the Quartus II software and open the design example Quartus II project file counter qpf Setting Up EDA Tool Options You can specify where your third party EDA simulators are installed with the EDA tool options settings in the Quartus II software These settings enable you to start third party EDA simulators from the Quartus II software June 2011 Altera Corporation Getting Started with Quartus II Simulation Using the ModelSim Altera Software 1 2 Getting Started with Quartus II Simulation Using the ModelSim Altera Software Starting the ModelSim Altera Software with the Quartus II Software IL For Windows users the ModelSim Altera tool path is automatically added during installation Linux users must perform the following two steps to add the ModelSim Altera tool path To set up the EDA tool options for ModelSim Altera follow these steps 1 On the Tools menu of the Quartus II GUI click Options The Options dialog box appears In the Category list under General click EDA Tool Options The EDA Tool Options page appears Figure 1 1 Figure 1 1 EDA Tool Options Page Options Dialog Box Category General EDA Tool Options EDA Tool Options Specify the location of the tool executable for each third party EDA tool Fonts Headers amp Footers Settings EDA Tool Internet Connectivity Location of Executable Libraries LeonardoSpe
11. lick User s Manual Modifying Stimulus Waveforms To modify stimulus waveforms follow these steps 1 On the Wave menu point to Mouse Mode and then click Edit Mode Make sure the Wave window is activated To activate it click in the Wave window 2 Select the reset signal from 0 ns to approximately 120 ns The selection does not need to be exact Figure 1 5 Figure 1 5 Inverted Waveform for reset Signal jcounterjclk fcounter reset Now Cursor 1 Je Edit Cursor Getting Started with Quartus II Simulation Using the ModelSim Altera Software June 2011 Altera Corporation Getting Started with Quartus II Simulation Using the ModelSim Altera Software 1 7 Creating Stimulus Waveforms 3 On the Wave menu point to Wave Editor and then click Invert The Edit Invert dialog box appears Figure 1 6 Figure 1 6 Edit Invert Dialog Box 7 Edit Invert Signal Name NewSig counter reset Start Time Time Unit End Time fo 120 as Ok Cancel 4 For Start Time enter 0 for End Time enter 120 and for Time Unit enter ns 5 Click OK to invert the waveform Figure 1 7 shows the inverted waveform Figure 1 7 Inverted Waveform for reset Signal 0 120 ns Msgs jcounterjclk fcounter reset me Now 5000 ns iad Cursor ons E 4 Pfa ill Starting Simulation To start the simulation follow these steps 1 Expand the Work library right click counter and click Simulate
12. must be typed exactly as it appears For example c qdesigns tutorial chiptrip gdf Also indicates sections of an actual file such as a Report File references to parts of files for example the AHDL keyword SuBDESTGN and logic function names for example TRI An angled arrow instructs you to press the Enter key 1 2 3 and Numbered steps indicate a list of items when the sequence of the items is important a b c and so on such as the steps listed in a procedure Es Bullets indicate a list of items when the sequence of the items is not important e The hand points to information that requires special attention A question mark directs you to a software help system with related information Is The feet direct you to another document or website with related information CAUTION A caution calls attention to a condition or possible situation that can damage or destroy the product or your work WARNING A warning calls attention to a condition or possible situation that can cause you injury cy The envelope links to the Email Subscription Management Center page of the Altera website where you can sign up to receive update notifications for Altera documents Getting Started with Quartus II Simulation Using the ModelSim Altera Software User Guide June 2011 Altera Corporation
13. ommand names dialog box titles dialog box options and other GUI Bold Type wiin Inita Gapital labels For example Save As dialog box For GUI elements capitalization matches Letters the GUI Indicates directory names project names disk drive names file names file name bold type extensions software utility names and GUI labels For example qdesigns directory D drive and chiptrip gdf file Italic Type with Initial Capital Letters Indicate document titles For example Stratix IV Design Guidelines Indicates variables For example n 1 italic type Variable names are enclosed in angle brackets lt gt For example lt file name gt and lt project name gt poft file Indicate keyboard keys and menu names For example the Delete key and the Options menu Initial Capital Letters June 2011 Altera Corporation Getting Started with Quartus Simulation Using the ModelSim Altera Software User Guide Info 2 Additional InformationAdditional Information Typographic Conventions Visual Cue Subheading Title Quotation marks indicate references to sections within a document and titles of Quartus Help topics For example Typographic Conventions Courier type Indicates signal port register bit block and primitive names For example data1 tdi and input The suffix n denotes an active low signal For example resetn Indicates command line commands and anything that
14. orm The Create Pattern Wizard appears Figure 1 4 Figure 1 4 Create Pattern Wizard IRA Create Pattern Wizard Generate a waveform for ad any signal for the chosen pattern The allowed patterns are Constant Clock Random Repeater Counter m Select Pattern Patterns Clock C Constant C Random C Repeater C Counter Signal Name NewSig counter clk Start Time End Time Time Unit Previous Next gt Cancel g Ae D N Altera Corporation Under Patterns select Clock For Start Time enter 0 for End Time enter 5000 and for Time Unit enter ns Click Next For Clock Period enter 100 for Time Unit enter ns and for Duty Cycle enter 50 Getting Started with Quartus II Simulation Using the ModelSim Altera Software 1 6 Getting Started with Quartus II Simulation Using the ModelSim Altera Software Creating Stimulus Waveforms 6 Click Finish Creating the Reset Waveform 1 Right click the reset signal in the Wave window and then click Create Modify Waveform In the Create Pattern Wizard under Patterns select Constant For Start Time enter 0 for End Time enter 5000 and for Time Unit enter ns Click Next Enter St0 Strong 0 for Value Click Finish Da AF Y N St For more information refer to Chapter 12 Generating Stimulus with Waveform Editor in the ModelSim User s Manual In the ModelSim Altera software on the Help menu point to PDF Documentation and then c
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