I saw online a lot of people asking how to use modelsim simulation, studied how to build a lot of projects in modelsim, how to associate the library after they gave up, in fact, I have encountered such a problem, but fortunately there are great god guidance, know the joint the concept of emulation, less take a lot of detours, here I am to tell you about the co-simulation of FPGA development environment with modelsim.
The so-called FPGA development environment and in fact quartus ise / vivado, quartus now have integrated installation package, install it, ise / vivado or to external calls.
- Co-simulation of quartus and modelsim
First install quartus and modelsim integrated installation package, I installed quartus prime 16.0.
Then new construction, the new process can be set to Simulation in Modelsim-Altera EDA TOOL Settings time. As shown below
Or Assignments-> Settings-> EDA TOOL Settings Setting Simulation to Modelsim-Altera after the project created. As shown below
And then set about modelsim path, usually integrated environment is automatically configured to prevent a foreign or configure the look, Tools-> Options-> General-> EDA TOOL Options-> Modelsim-Altera modelsim click Browse to select the path back, I installed in the C drive. As shown below
Next step is to configure the associated testbench, you can write your own testbench, recommendations or automatically generated by quartus, provided that you complete comprehensive.
Processing-> Start-> Start Test Bench Template Write, click will automatically generate a simulation in your project directory folder, which has modelsim folder, there is an automatically generated following a top-level file name .vt the test bench file.
生成test bench后在Assignments->Settings->EDA TOOL Settings->Simulation配置关联信息。如下图
选中Compile test bench，点击Test Benches。
点击New。
系统自动生成的test bench 一般是顶层文件名_vlg_tst，例化名是i1，这些都可以改，我一般是将test bench 模块名改为顶层文件名_sim, 例化名改为uut。
仿真时间可以不填，我一般是填个10us，然后配置test bench路径，设置后点击add，然后一路ok，就设置完成了。
最后就是在quartus 调出modelsim了，Tools->Run Simulation Tool->RTL Simulation。等待一会，modelsim波形窗口就会弹出来了，如果没有反应，就返回去检查一下配置。