Sigasi turns VS Code into a professional HDL engineering workspace for VHDL, SystemVerilog, and mixed-language projects. It provides deterministic, project-aware feedback while engineers write RTL, so teams spend less time on avoidable rework and more time on real design progress.
The engineering manager problem
Your team doesn’t lose weeks to “hard bugs.” Your team loses time to:
- late feedback loops (integration → sim bring-up → debug → redo)
- review churn (naming, structure, missing context, avoidable issues)
- onboarding friction (new engineers can’t “see the design”)
- mixed-language reality (FPGA prototypes evolving into ASIC-grade flows)
The result is unpredictability: more context switching, more rework, and more schedule risk.
What Sigasi changes
1) Catch avoidable issues earlier (shift-left)
Sigasi continuously analyzes your HDL project as you type - types, scopes, hierarchy, dependencies - so many issues are caught upstream, when changes are cheap and intent is still fresh. Leading to fewer “surprise failures” during integration and simulation bring-up.
2) Make large codebases easier to understand and change
Sigasi improves day-to-day flow in big projects with:
- semantic navigation (jump to declarations, references, hierarchy)
- safe refactoring with preview
- live diagrams (block / state machine / dependencies)
Leading to faster reviews, faster onboarding, and fewer “where is this coming from?” delays.
3) Mixed-language support that matches real teams
Engineering teams often mix VHDL and SystemVerilog across IP, legacy blocks, and verification environments.
Sigasi supports mixed-language workflows explicitly, including:
- embedding SystemVerilog modules in VHDL architectures
- instantiating VHDL components from SystemVerilog
- rules to reduce boundary pitfalls such as keyword guarding and case control
Leading to less integration friction as projects evolve.
Trust + guardrails
Sigasi improves upstream quality and developer productivity, but it does not replace simulators, synthesis, verification, or sign-off tools. It complements them by reducing avoidable churn before code reaches those stages. Core diagnostics are deterministic and reproducible, so teams can rely on consistent results across machines and in CI.
How to evaluate
A low-risk team trial takes 2–3 weeks. Pick one active project and measure improvements with real data. We suggest the following pilot metrics:
- reduction in avoidable issues reaching sim/CI
- PR review churn (iterations and time-to-merge)
- integration bring-up surprises
- onboarding speed (time to first productive change)
- time spent searching/navigating vs implementing
What you get
- Professional VHDL + SystemVerilog support in VS Code
- Project-aware semantic analysis (not just text parsing)
- Navigation, refactoring, and live diagrams
- Team rule configuration and consistent diagnostics
- Fits into existing version control and CI workflows
FAQs
Q: Will this disrupt our toolchain?
A: No. Sigasi is designed to integrate into your existing workflow and tools. It adds upstream feedback and insight; it doesn’t replace your simulator or sign-off flow.
Q: Is this only for FPGA?
A: No. Sigasi supports professional FPGA and ASIC-style workflows, including mixed-language projects.
Q: How do we start?
A: Book a demo or request a (team) trial. If you’re a student or non-commercial user, you can download the full-featured Community Edition free of charge.
Why evaluate?
Sigasi Visual HDL is a professional HDL engineering workspace for VHDL, SystemVerilog, and mixed-language projects in VS Code. It provides deterministic, project-aware feedback while engineers write RTL, along with navigation, refactoring, and live diagrams, helping teams reduce avoidable churn and improve predictability without replacing existing simulation, verification, or sign-off tools. Evaluate it in a 2–3 week team trial on a real project, in VS Code and optionally in CI.
Want fewer surprises and more predictable RTL progress?
Request a (team) trial to evaluate on a real repo and get a free 20-minute demo on top, tailored to your toolchain.