AI engineering workspace for digital hardware

AI Engineering Workspace
for RTL & Verification

Accelerate RTL design, verification and debugging with specialized engineering agents while engineers stay in control. Review existing RTL, create new blocks, and verify everything against real simulation.

Built for FPGA EngineersRTL DesignersASIC EngineersVerification Engineers

Human-in-the-loop · deterministic workflow · explainable results · backed by real simulation and synthesis execution.

# spec → sync_fifo (WIDTH=8, DEPTH=16), target: Xilinx FPGA iter 1 designing rtl ............... ok iter 1 building self-checking tb ... ok iter 1 simulate .................... 31/34 checks FAIL: random_fifo_order iter 2 debug → root cause: count not held on simultaneous r/w iter 2 repair design → re-simulate . 34/34 checks ✓ ppa synthesis · PPA report ..... LUTs=78 FFs=140 ALL CHECKS PASS # engineer reviews → accept · modify · reject
SystemVerilog Constrained-random Functional coverage Assertions (SVA) FPGA & ASIC targets
Why Nexeda

Verification is 70% of the work.
We close the loop.

Most AI tools stop at "here's some Verilog." That leaves the hard part, proving it is correct, on you. Nexeda treats verification as the product: every line it touches is simulated, checked against assertions, and repaired until it passes.

Review first, generate later

Point Nexeda at existing RTL and it finds bugs, inferred latches, CDC and reset risks, and proposes assertions. This is the lowest-risk way to build trust.

Self-checking by default

Generated testbenches report pass/fail per case and a coverage summary. No eyeballing waveforms; the loop scores itself.

Closed-loop repair

On failure, the debugger localizes the fault, decides whether the design or the testbench is wrong, fixes it, and re-runs within a bounded budget.

Why Nexeda, not a chatbot

A general AI writes code.
Nexeda runs an engineering workflow.

The hard part of hardware is not the first draft. It is proving correctness and fitting into a real flow. That is the difference.

General AI
Nexeda
Token-only prompt context
Project intent, target, clock/reset and PPA context
Returns one HDL draft
Creates RTL, assertions, testbench, logs and report artifacts
No compiler or simulator feedback
Runs real lint, simulation, structural checks and synthesis estimates
No pass/fail scoring
Self-checking tests with deterministic result parsing
Generic Verilog suggestions
RTL review, root cause, hardware impact and patch recommendation
No bounded repair loop
Iterates with a visible stop control and max-iteration budget
Where it saves time

Less manual glue across the chip design flow

Nexeda is not only a code generator. The MVP targets the repetitive work around RTL drafting, review, testbench creation, debug and reporting.

Spec to architectureFaster first structure

Turns requirements into module interfaces, parameters, clock/reset assumptions and corner-case checklists before code is written.

RTL draftingCleaner starting point

Creates synthesizable drafts biased by FPGA vendor, ASIC process, application, coding style and PPA priorities.

VerificationTestbench built with the RTL

Generates directed checks, constrained-random cases, assertions and a self-scoring simulation result instead of leaving verification for later.

Debug loopFailure triage in minutes

Reads logs, identifies whether the design or testbench is at fault, recommends the fix and reruns inside a bounded loop.

Review handoffReusable engineering report

Produces the RTL quality score, warnings, assumptions, known gaps, coverage proxy and downloadable artifacts for human review.

Engineering philosophy

Principles we build on

Nexeda is built to earn an engineer's trust, not to replace their judgment.

AI assists engineers

Agents accelerate the work; they never replace your judgment or sign your name to a design.

Engineers stay in control

You review, modify, accept or reject every change. Nothing ships without you.

Verification before automation

Nothing is trusted until it's simulated and checked against real tools.

Deterministic workflow

Real engines, bounded iterations, reproducible runs, not a black box.

Every decision is explained

Each finding and fix comes with the engineering reasoning behind it.

Built by FPGA EngineersHuman-in-the-loopDeterministic WorkflowExplainable AIReproducible Results
The engineering loop

Coordinated engineering agents,
one verification summary

A deterministic engine runs real simulation and synthesis; engineering agents only coordinate. That's what makes the workflow reliable instead of a guess.

01

Interpret

Spec → formal intent: ports, protocol, timing, corner cases.

02

Design

Synthesizable Verilog, PPA-biased to your target & application.

03

Verify

Self-checking testbench + assertions + functional coverage.

04

Simulate & repair

Run, parse failures, fix design or TB, iterate to convergence.

05

Verify + PPA

All checks pass → verification summary, utilization & Fmax estimate.

RTL Review

Catch the bugs before silicon does

Static analysis plus an engineering reviewer that reads intent. Get specific, cited findings and ready-to-paste assertions - with the reasoning behind each, not vague suggestions.

  • Inferred latches, incomplete sensitivity, multi-driven nets
  • Clock-domain crossing & reset hazards
  • Auto-generated assertions to lock down invariants
// Nexeda review · severity: medium FINDING latch inferred on `next_state` └ default branch missing in combinational block FINDING CDC: `busy` sampled across clock domains └ add a 2-flop synchronizer ASSERT property: full & empty never both high
Create & verify

Standard blocks, verified in minutes

Describe a FIFO, arbiter, AXI-Lite slave or FSM in plain language. Nexeda creates a lint-clean RTL draft, verifies it against a self-checking bench, and reports utilization - all in one run, for you to review.

  • Synthesizable RTL draft, parameterized & commented
  • Directed + constrained-random testing
  • PPA estimate (LUT/FF/Fmax) in every verification summary
sync_fifo · functional waveform34/34 checks ✓
clk wr_en full dout[7:0]
Built to measure

An eval harness at the core

Every run is logged as a spec → RTL → bug → fix trace. The benchmark suite is how we prove progress, and the dataset that compounds over time.

5
coordinated engineering agents in the loop
100%
runs scored automatically, no manual waveform review
FPGA→ASIC
FPGA-first today, ASIC flow on the roadmap

Watch an RTL design verify itself

Give Nexeda a spec and watch the loop run live: draft, simulate, repair, verify, then review the result.

Open the Playground See the product suite