Simulate board bring-up before the prototype

Adam Szefer · Co-founder & CTOUpdated July 23, 2026

Prev. Bloomberg · Gyfted. Systems and simulation infrastructure — the engine that runs your firmware against the circuit.

Bring-up is where schedules slip: quiet buses, brownouts, “works if I reset twice.” Simulation will not replace a scope on a real rail — it clears the silly failures before you join the lab queue.

Shift-left the bring-up checklist

Power sequencing relative to firmware, default pin states, I²C/SPI enumeration, interrupt wiring — exercisable as soon as netlist and image exist.

Keep a regression suite

Once a bring-up path works in simulation, gate firmware and schematic changes on it. Prototype #2 should be about physics, not rediscovering pinmux.

Hand-off to the bench

Same binaries, same tests where possible. Instruments take over for rails and sensors; the twin already proved the digital contracts.

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We build a board simulator from your netlist, schematic, and BOM, run your real firmware against it, and fail CI when pinmux, buses, or timing contracts break.

  • A working simulator of your board, built from netlist, schematic, and BOM.
  • Peripheral models attached so your firmware can talk to the board.
  • A setup that runs your real firmware binary — no rewrite required.

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