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Franck

@fjullien.bsky.social
52 followers 116 following 11 posts
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Reposted by Franck
Unofficial Hackaday Feed @hackaday-feed.bsky.social · 15/11/2025
Using the Pyroelectric Effect to Identify Broken MLCC Capacitors
hackaday.com
Using the Pyroelectric Effect to Identify Broken MLCC Capacitors
Vintage computer hardware can fail in a variety of fascinating ways, with [Bits und Bolts] dealing with an interesting failure mode, in the form of degraded MLCC capacitors on Voodoo …read more
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Franck @fjullien.bsky.social · 14/11/2025
Article original: social.treehouse.systems/@garyodernic...
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Reposted by Franck
gwenhaelg.bsky.social @gwenhaelg.bsky.social · 12/09/2025
🎉 openFPGALoader v1.0.0 is out! Major highlights: • Complete spiOverJtag rework for Xilinx(complex chains) • New Sponsors/Partners section • AlteraFPGA MAX10 • Lattice ECP3 + ECP5's SSPI • EspressifSystem ESP32-S3 as JTAG 🔗 github.com/trabucayre/o... Thanks to all!
Machdyne Schoko with ESP32-S3 as JTAG bridgeLattice ECP5 in SSPI modenew SpiOverJtag support able to access Flash in complex JTAG chain
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Reposted by Franck
Tomb💀Time @tubetime.bsky.social · 24/08/2025
i reverse-engineered the Raspberry Pi Compute Module 5! check it out at github.com/schlae/cm5-r...
board layout in KiCad with lots of layers and colors
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Franck @fjullien.bsky.social · 19/05/2025
Part 2 of my SCA journey is now live: I demonstrate a successful CPA attack on an unmodified device during AES key unwrap. collshade.fr/articles/cpa...
collshade.fr
CPA
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Reposted by Franck
Colin O'Flynn @handle.invalid · 14/03/2025
For the past while J-P at @newae.com has been working on a major #ChipWhisperer doc refactor - this is now live, check out chipwhisperer.readthedocs.io/en/latest/in... . It moves software, hardware, and even some tricks/tips all into once place using Jupyter Books. Huge improvement in usability!
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Reposted by Franck
Jon Evans @craftyjon.com · 20/02/2025
OK, it's official on the website now: KiCad 9 is out! www.kicad.org/blog/2025/02...
kicad.org
Version 9.0.0 Released
The KiCad project is proud to announce the release of the next major version of KiCad. Version 9 is packed with new features, improvements, and hundreds of bug fixes. We hope you enjoy the new versio...
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Reposted by Franck
LaurieWired @lauriewired.bsky.social · 06/02/2025
Ghidra 11.3 is OUT! 
PyGhidra is the new feature to be excited about.

It’s a Python library providing direct access to the Ghidra API. 

 I expect this to massively increase Reverse Engineering tool development, as it significantly reduces the barrier to entry for Ghidra interaction.
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Reposted by Franck
KiCad EDA @kicad.org · 18/01/2025
What's this? Oh, nothing much. Just KICAD VERSION 9RC2 dropped! We are only a couple weeks away from the final release. Test out the nightly builds now and see if you can find any showstoppers that we can fix before that happens. forum.kicad.info/t/stable-ver...
Stylized circuit board, showing a blue "K" with a DIP12 next to it that resembles the Ki from the KiCad logo.  The dot for the "i" is drawn as a gold bodge wire shaped into the number 9
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Reposted by Franck
Barbatronic @barbatronic.bsky.social · 16/01/2025
🎉 Exciting news! We're thrilled to announce that @aisler.net is sponsoring our robotics team for the 3rd year in a row! 🙌 Their support helps us design and build high-quality PCBs for our robots 🤖 More on our blog: leskaribous.fr/posts/aisler/ Thanks, Aisler! aisler.net #Robotics #PCB #Makers
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Franck @fjullien.bsky.social · 10/01/2025
I've been diving into electromagnetic (EM) side-channel attacks with Correlation Power Analysis (CPA) these past few weeks and just published a blog article about my journey: collshade.fr/articles/cpa...
collshade.fr
CPA
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Reposted by Franck
cts @gf256.bsky.social · 25/12/2024
My videos for Flare-On 2024 are live! Watch me reverse engineer all the challenges from start to end. 🎉🥳 + Commentary video featuring SuperFashi, where we review the chals together. * 45 hours of content * 400+ GB of raw footage Merry Christmas! Link: www.youtube.com/watch?v=vwW9...
youtube.com
Flare-On 2024 Solutions and Commentary
YouTube video by BasteG0d69
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Reposted by Franck
Ken Shirriff @righto.com · 06/12/2024
Intel launched the Pentium processor in 1993. Unfortunately, dividing sometimes gave a slightly wrong answer, the famous FDIV bug. Replacing the faulty chips cost Intel $475 million. I reverse-engineered the circuitry and can explain the bug. 1/9
A die photo of the Pentium processor with the main functional blocks labeled including the caches, instruction fetch and decode, integer execution, and floating point. The image consists of complex patterns of rectangular regions in reddish and brownish colors. The image zooms in on a small part of the floating point unit giving a detail of an adder and PLA circuit.
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Franck @fjullien.bsky.social · 11/12/2024
I understand why people need HPC to work on side channel. It took me hours to get this convergence plot. It's ONE byte and only 10000 traces...
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Reposted by Franck
Jon Evans @craftyjon.com · 04/12/2024
Multi-track drifting, er, dragging coming to KiCad 9! Video and code courtesy of Tom W :)
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Reposted by Franck
KiCad EDA @kicad.org · 03/12/2024
KiCad is proud to announce the release of 8.0.7 We have lots of bug fixes and speed improvements in this release, so upgrading is highly recommended! www.kicad.org/blog/2024/12...
kicad.org
KiCad 8.0.7 Release
The KiCad project is proud to announce the version 8.0.7 bug fix release. The 8.0.7 stable version contains critical bug fixes and other minor improvements since the previous release.
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Franck @fjullien.bsky.social · 18/11/2024
Hello AES!
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Franck @fjullien.bsky.social · 17/11/2024
I didn't know that italic could be a variant for part numbers 🤨
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