Tomachie

An authoritative AI-assisted PCB design review

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Articles and videos on AI powered PCB design, PCB schematic quality and PCB design for testability (DFT).

Jetson Thor Carrier PCB Design Review

AntMicro's Jetson Thor carrier board scored 47/100: a wiring error on I2C, lack of short circuit protection, a deficiency in the USB PD design and no protection for a software ask above the strapped voltage.

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CM5 Carrier PCB Design Review

Blackwing Space's Raspberry Pi CM5 carrier scored 83/100, but several places show power is shallow to run two cameras at the same time. The report was $44.

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PCB Testability Pre-Layout

Testability reviews with ODB++ and Gerber files come too late and create work for PCB designers. Three new approaches analyze testability from the schematic, before layout, without knowing the factory floor.

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Auto-Generated PCB Power Tree

An accurate, interactive power tree auto-generated from Petr Dvořák's CM4S carrier schematic, with a drawIO file we hope you will never need. For Altium, KiCad, Capture CIS and EasyEDA.

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PCB Power Tree

Interactive, hierarchical power tree documentation drawn from Maxim Pavlov's PSU-EXT KiCad schematic, with a drawIO file the designer can annotate and put back into the report, plus pre-layout DC power integrity.

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KiCad DC Power Integrity with KiPI

Our GitHub fork of KiPI, the open-source power integrity analyzer for KiCad: a pdn.json power-tree import, now part of KiPI 0.8.0 itself, plus worst-case DC solves and INCOMPLETE marking for loads with unknown currents. Shown on a Raspberry Pi CM4S carrier.

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Altium DC Power Integrity with FYPA

Our GitHub fork of FYPA, the DC power integrity / IR-drop tool that reads Altium projects directly: split planes, non-synchronous bucks, regulator modeling, load switches, a worst-case corner, and a reader that loads the 200+ power-tree values from a Tomachie .json file.

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Tomachie for KiCad — run the analysis from KiCad's schematic editor

A new plugin adds a Tomachie button to KiCad 10's schematic editor. One click sends the schematic sheets and project file for test-point insertion, DFT checks and an optional AI review, without zipping and uploading by hand.

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Raspberry Pi Compute Module Carrier Board — PCB Design Review

A real Raspberry Pi CM4S carrier board schematic taken through a full PCB design review with the engineer who designed it — and the same review applies to a CM4 carrier or a CM5 carrier: preliminary report and score, then the AI pass against component datasheets and derating rules.

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Cathode on Pin 1, Cap + on Pin 1

IPC-7351B and IPC-7251 put pin 1 on the diode cathode and on the capacitor +. Footprints are built that way, so symbols have to match — and it costs real time in manufacturing, debug and test when they do not.

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AI PCB Design Basics

Automated schematic design review before layout: quality gate, test point insertion, and AI datasheet checks. Subtitles in 17 languages.

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