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Furrtek

@furrtek.bsky.social
2.2K followers 751 following 191 posts

Virtual coyote obsessed with retro electronics reverse-engineering, theme park tech, music, and giant robots 💚. Likes the demoscene, SDR, urbex, pointy animals, graffiti, things on rails, North Korea. No AI bros, shills or posers, thanks. 🇫🇷/🇺🇸

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Furrtek @furrtek.bsky.social · 09/09/2026
Solution trouvée mais il faut attendre malheureusement, des cartouches de jeux ne font pas le poids devant les besoins de l'IA et des constructeurs de bagnoles.
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Furrtek @furrtek.bsky.social · 05/09/2026
Tout ne part pas encore chez Apple, nvidia et openai
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Furrtek @furrtek.bsky.social · 05/09/2026
Kind of surreal to see an SNK branded chip with a 2026 datecode
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Furrtek @furrtek.bsky.social · 05/09/2026
No other chip present on those games
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Furrtek @furrtek.bsky.social · 04/09/2026
NEO-PCM2 curiosity: MAME has pcm2_prot_device::swap which applies a XOR to decrypt the data of some games. Problem: I can't see a path for a XOR to be applied on data in the real chip. If SNK made different NEO-PCM2's to confuse pirates, they're bastards and I love them.
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Furrtek @furrtek.bsky.social · 22/08/2026
Sinon pas besoin d'une conv pour se voir, mais le vrai problème c'est que je sors de mon terrier environ 3 fois par an
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Furrtek @furrtek.bsky.social · 22/08/2026
Perso j'ai toujours passé un bon moment. Le changement d'hotel a refroidi pas mal de monde malheureusement (tarif, séparation hotel/convention center). Les choix des dernières années ont été durs, ça fait de la peine pour l'orga car ils se donnent du mal.
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Furrtek @furrtek.bsky.social · 22/08/2026
Tu rates pas grand chose :) Je fais toujours la FBL cette année, si t'es à Paris fin Octobre
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Furrtek @furrtek.bsky.social · 22/08/2026
Freshly decapped and scanned NEO-PCM2: ADPCM ROM multiplexing and security used by late NeoGeo games. Hopefully will help fix inexact descrambling emulation. Fujitsu CG47 gate array from 1999 Kindly donated by @Rolel42
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Furrtek @furrtek.bsky.social · 20/08/2026
Nul part à vrai dire, j'ai été à quelques furbars et à la FBL mais je m'y retrouve plus, écart d'âge et d'intérêts
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Furrtek @furrtek.bsky.social · 19/08/2026
Non ça m'a jamais trop donné envie l'EF
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Furrtek @furrtek.bsky.social · 17/08/2026
Ouch :/
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Furrtek @furrtek.bsky.social · 15/08/2026
Added WIP info in database :)
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Furrtek @furrtek.bsky.social · 15/08/2026
Pretty sure the 055550 is from Epson, markings and "SLA" prefix match.
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Furrtek @furrtek.bsky.social · 15/08/2026
*: interprétation
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Furrtek @furrtek.bsky.social · 15/08/2026
Very rare silicon speed limit for when signals are too fast
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Furrtek @furrtek.bsky.social · 15/08/2026
Mayan symbols in Nintendo MMC5 Possibly just a resistor to ground drawn by a layout artist who had one too many
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Furrtek @furrtek.bsky.social · 02/08/2026
Simpler if you're talking of custom boards, doesn't need to fit the original chip footprint. But still: if you aren't making 100's, $20 FPGA, $15 flash, $10 shifters & passives, $10 PCB, assembly, shipping and taxes and there isn't much left. Many who try physical releases realize that too late.
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Furrtek @furrtek.bsky.social · 02/08/2026
I doubt repros will be made, wouldn't be economically viable given an FPGA, level shifters and an interposer board would be required
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Furrtek @furrtek.bsky.social · 01/08/2026
www.patreon.com/furrtek/post...
patreon.com
New die scans, Konami 054338 schematics and MMC5 | furrtek
Finally collecting the motivation to implement autofocusing in my die scanning utility brought a (maybe temporary) solution to the dishearte
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Furrtek @furrtek.bsky.social · 17/07/2026
Nice. Green tint looks like JLC ? Good luck with testing.
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Furrtek @furrtek.bsky.social · 17/07/2026
Big oops
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Furrtek @furrtek.bsky.social · 16/07/2026
The closest available today is TinyTapeout and Wafer.space
wafer.space
wafer.space - Budget silicon manufacturing.
Create integrated circuits without breaking the bank!
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Furrtek @furrtek.bsky.social · 16/07/2026
Namco 329 (Toshiba) siliconprawn.org/map/namco/cu... Taito TC0650FDA (TI) siliconprawn.org/map/taito/tc... Seibu SEI0220BP and SEI0160 siliconprawn.org/map/seibu/se... siliconprawn.org/map/seibu/se... 3/3
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Furrtek @furrtek.bsky.social · 16/07/2026
Taito TC0140SYT siliconprawn.org/map/taito/tc... Video System VS920B, VS9108 and C7-01 siliconprawn.org/map/videosys... siliconprawn.org/map/videosys... siliconprawn.org/map/videosys... All from Fujitsu 2/3
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Furrtek @furrtek.bsky.social · 16/07/2026
More die scans Toaplan GP9001 siliconprawn.org/map/toaplan/... Data East 104 siliconprawn.org/map/data-eas... 1/3
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Furrtek @furrtek.bsky.social · 11/07/2026
Et dire que c'est de la techno d'il y a 40 ans
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Furrtek @furrtek.bsky.social · 11/07/2026
Franchement, peut mieux faire. Mes objectifs sont malheureusement de piètre qualité.
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Furrtek @furrtek.bsky.social · 11/07/2026
And finally the most visually interesting ones: NEO-YSA2 with its CMOS YM2610 equivalent and synthesized Z80, and NMK-215, a microcontroller who @recreativospiscis.bsky.social made a dumper for siliconprawn.org/map/snk/neo-... siliconprawn.org/map/nmk/nmk-... 3/3
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Furrtek @furrtek.bsky.social · 11/07/2026
Then VS9209, VS920A, VS8905, VS8803 from Video System, gate arrays too, some with RAM blocks siliconprawn.org/map/videosys... siliconprawn.org/map/videosys... siliconprawn.org/map/videosys... siliconprawn.org/map/videosys... 2/3
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Furrtek @furrtek.bsky.social · 11/07/2026
New batch of dies scanned, it's been a while. First #X68000 stuff: BUDDHA, RESERVE, SICILIAN, VINAS1 and 2, all gate arrays siliconprawn.org/map/sharp/vi... siliconprawn.org/map/sharp/vi... siliconprawn.org/map/sharp/si... siliconprawn.org/map/sharp/re... siliconprawn.org/map/sharp/bu... 1/3
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Furrtek @furrtek.bsky.social · 07/07/2026
Aw Digikey made a little H with my MCUs. Is it for "Help" ?
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Furrtek @furrtek.bsky.social · 04/07/2026
That's apple juice !
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Furrtek @furrtek.bsky.social · 28/06/2026
Their documentation isn't clear about that and the type name does sound like only inputs are supported. However given their reply and the very low leakage current measured I'm pretty confident 5V is safe on inouts, as long as they're not fighting of course.
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Furrtek @furrtek.bsky.social · 28/06/2026
Lattice support told me all 4000ZE IOs are technically 5V tolerant as long as the bank's VCCO is 3.3V, the *_5V IO types are a hint for the auto pin assignation to group them in the same banks.
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Furrtek @furrtek.bsky.social · 28/06/2026
>:|
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Furrtek @furrtek.bsky.social · 28/06/2026
I'm curious, what's U16 on the PROG ?
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Furrtek @furrtek.bsky.social · 28/06/2026
They should have been ready for june, sorry. I still haven't adopted the new standard of getting things out the door as cheaply and quickly as possible by collecting other's free help and vibecoding what's missing.
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Furrtek @furrtek.bsky.social · 28/06/2026
Neo CD SD Loader V2 final prototypes for CDZ, top and front loaders are finally validated
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Furrtek @furrtek.bsky.social · 10/06/2026
Thought I knew Fujitsu gate arrays well enough to not be bitten by such things, but I was wrong. Inputs can be inverting.
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Furrtek @furrtek.bsky.social · 10/06/2026
Pitié faites que ce soit pas du Claude
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Furrtek @furrtek.bsky.social · 06/06/2026
TL;DR: Used negation instead of XOR, fails if checksum is 0
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Furrtek @furrtek.bsky.social · 05/06/2026
x.com/furrtek/stat...
x.com
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Furrtek @furrtek.bsky.social · 05/06/2026
With @modernvintagegamer.com's video about Doom on the NeoGeo, I think it's a good time to share an old and very silly project related to putting gory stuff in a cartridge and using the console as a video pass-through: www.furrtek.org?a=superngpc In 🇫🇷 but any autotranslate works well enough
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Furrtek @furrtek.bsky.social · 25/05/2026
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Furrtek @furrtek.bsky.social · 13/05/2026
Je peux laisser le flux si vous aimez le caramel
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Furrtek @furrtek.bsky.social · 13/05/2026
NEO-BUF replacements restocked, same price, now easier to install in ✨flex✨ lectronz.com/products/neo... Terrible picture:
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Furrtek @furrtek.bsky.social · 11/05/2026
Noooon :o
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Furrtek @furrtek.bsky.social · 10/05/2026
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Furrtek @furrtek.bsky.social · 09/05/2026
Advertises at low tx power a bit over once per second, MAC address changes randomly every 30 seconds.
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