Sigasi Studio for VS Code

The Sigasi extension for Visual Studio Code brings the Sigasi analysis engine and much of its productivity technology to VS Code.

You can use your existing Sigasi Studio license or get a free trial license from

Please contact with any feedback or questions that aren’t answered in the documentation.


Documentation of the Sigasi extension for VS Code is split in the following parts.

Also make sure to complete the extension’s Walkthrough which you can find in the VS Code Get Started tab.

Creating a Project From Scratch

First thing you need to do after installing the extension in VS Code, is make sure the license is configured. This can be done following the steps from the extension settings page.

Then, once you have opened the folder with your design files, you can open the Command Palette (Ctrl+Shift+P) and run the command Sigasi: Create New XXX Project with XXX being either VHDL or Verilog/SystemVerilog.

VS Code: Create New Project

Next, you just need to indicate the root folder of the project to create a .project file in your folder containing the project configurations.

Once the .project file is detected, the Sigasi extension will fully start, which you can notice by the appearance of a Project View below the default VSC file explorer. From then on, you should use the Project View instead of the VSC file explorer.

If you have a mixed language project, it doesn’t matter whether you initially choose VHDL or Verilog/SystemVerilog, since now you can add support for the other one using the command Sigasi: Add XXX Support.

VS Code: Add Language Support

Now your project should be fully ready to work with, and proper HDL files should be analyzed by Sigasi Studio.

For VHDL, libraries are fully supported. For Verilog/SystemVerilog, Sigasi reuses the VHDL library concept (just work in practice) to distinguish between design files that should and shouldn’t be analyzed. You can configure libraries using the documentation on the project setup page.

You can also start from a known source, like a Quartus project, that can be converted using a script into a Sigasi Studio project. Scripts and documentation are available from

Tutorial and Demo Projects

A tutorial project and demo project are available through the extension.


The tutorial project covers most of Sigasi’s features. Press Ctrl+Shift+P and start typing Sigasi: Create Tutorial Project to open the tutorial.

When the extension has finished processing, you will see a number of issues for some files pop up in the file explorer.

Errors and Warnings status bar indicator
There will also be a number of errors and warnings in the status bar. When clicking the error and warning indicator in the status bar, the Problems View opens. In there, you can navigate through the error and warning markers for the project.


You can also open a somewhat larger demo project using the command Sigasi: Create Demo Project.

Further Reading

These articles give you more information on using the VS Code extension.