1、Modelsim的下載及安裝的下載及安裝Modelsim是一種驗(yàn)證和仿真工具 針對Verilog、VHDL、systemVerilog、systemC及其混合語言及其混合語言 官網(wǎng)官網(wǎng)：http:/ .5_keygen。運(yùn)行里面的運(yùn)行里面的mentorkg.exe文件，文件，產(chǎn)生產(chǎn)生license.txt ，后綴名，后綴名txttxt改為改為dat，復(fù)制到安裝目錄的，復(fù)制到安裝目錄的win32下下4.右擊右擊“我的電腦我的電腦”，“屬性屬性”/“”/“高級高級”/“”/“環(huán)境變量環(huán)境變量”,”,新新建系統(tǒng)變量建系統(tǒng)變量LM_LICENSE_FILE, ,變量值賦變量值賦LICENSE.dat所

2、在路徑所在路徑（win32LICENSE.dat）確定，重啟計(jì)算機(jī)確定，重啟計(jì)算機(jī)Modelsim 6.5基本仿真流程基本仿真流程 Modelsim 6.5基本仿真流程基本仿真流程1. Creating the Working Library In ModelSim, all designs are compiled into a library. You typically start a new simulation in ModelSim by creating a working library called “work” （ the default library name）.2.

3、Compiling Your Design 在在library中完成設(shè)計(jì)文件的編譯，支持多平臺中完成設(shè)計(jì)文件的編譯，支持多平臺You compile your design units into the library（ compatible across all supported platforms） Modelsim 6.5基本仿真流程基本仿真流程3. Load and Run simulation load the simulator with your design by invoking the simulator on a top-level module (Verilog)As

4、suming the design loads successfully, the simulation time is set to zero, then enter a run command to begin simulation.Modelsim 6.5基本仿真流程基本仿真流程 4. Debug results If the results is not you expect, you can use ModelSims robust debugging environment to track down the cause of the problem.Modelsim 6.5基本仿

5、真流程基本仿真流程Modelsim 6.5基本仿真流程基本仿真流程DIFFRERENCES: Do not have to create a working library in the project flow (automatically). Projects are persistent. ( open every time you invoke ModelSim)Modelsim 6.5基本仿真流程基本仿真流程create the project and add the test bench to the projectModelsim 6.5基本仿真流程基本仿真流程1. ModelS

6、im uses libraries in two ways: a local working library that contains the compiled version of your design (changes as you update your design and recompile); a resource library (typically static , you create or by another design team)Modelsim 6.5基本仿真流程基本仿真流程2. FOR EXAMPLE: Your gate-level design and t

7、est bench are compiled into working library, The design references gate-level models in resource library (separate). Modelsim 6.5基本仿真流程基本仿真流程1. Create a new directory and copy the design files for this lesson into it. Counter.v tcounter.v 2. Start modelsim File /Change Directory (to the directory yo

8、u created)Modelsim 6.5基本仿真流程基本仿真流程3. Create the working library. File/ New /LibraryWork中自動(dòng)創(chuàng)建了一個(gè)中自動(dòng)創(chuàng)建了一個(gè)_info的文件的文件。表明此目錄為表明此目錄為Modelsim的工作庫，不的工作庫，不能改動(dòng)。能改動(dòng)。 Modelsim 6.5基本仿真流程基本仿真流程4. Then Transcript window: vlib work vmap work workModelsim 6.5基本仿真流程基本仿真流程5. Compile Compile / CompileModelsim 6.5基本仿真流

9、程基本仿真流程6. Then Modelsim 6.5基本仿真流程基本仿真流程 7. optimize the designCmd vopt +acc test_counter -o testcounter_opt+acc 對設(shè)計(jì)文件提供很好的能見度，方便調(diào)試對設(shè)計(jì)文件提供很好的能見度，方便調(diào)試-o 為優(yōu)化后的文件指定名字為優(yōu)化后的文件指定名字 Modelsim 6.5基本仿真流程基本仿真流程8. Load the module into simulator Cmd vsim testcounter_opt Modelsim 6.5基本仿真流程基本仿真流程Object window( (顯示數(shù)據(jù)對象名字顯示數(shù)據(jù)對象名字，當(dāng)前值當(dāng)前值。 ) ) Processes window( (四種模式四種模式Active, In Region, Design, Hierarchical。默認(rèn)第一種，顯示在仿真中活動(dòng)的進(jìn)程。默認(rèn)第一種，顯示在仿真中活動(dòng)的進(jìn)程。 ) ) Modelsim 6.5基本仿真流程基本仿真流程9. Run the simulation View Wave (or cmd View Wave) right-click test_counterAdd / To Wave / All items in