Tim 'mithro' Ansell

Hacker Tactic: ESD Diodes A hacker’s view on ESD protection can tell you a lot about them. I’ve seen a good few categories of hackers neglecting ESD protection – there’s the yet-inexperienced ones, o…

Nice article explaining ESD diodes (and protection):

hackaday.com/2025/06/19/h...

DIY four point silicon wafer probe

youtube.com/shorts/xkOL...

GitHub - mithro/displayport-hardware-hacking: Open Source Hardware Designs for working with DisplayPort and intercepting AUX signals. Open Source Hardware Designs for working with DisplayPort and intercepting AUX signals. - mithro/displayport-hardware-hacking

github.com/mithro/displ...

YouTube video by Zero To ASIC Course 180 GHz chip design with open source tools - an interview with Shafin Hossain

180 GHz amplifer design with open source tools? Check out my interview with Shafin here:

www.youtube.com/watch?v=RFPe...

#ASIC #opensource #RF

In other news, I’ll be at #teardown this coming week. I’m bring so many stickers. #stickerlife

60,000:1 CMOS inverter scale model - now with magnets!

Get his little brother at the @tinytapeout.com store:

store.tinytapeout.com/products/Sky...

#ASIC #CMOS

Hey modern C++ experts, asking for ideas.

I'm working on a novel calling convention for RISC-V composable custom extensions (CXs).

Here's a sketch: godbolt.org/z/fP131o81E.

This uses "CX multiplexing" to prefix custom instructions with a "cxsetsel" instruction that selects the current CX. ...

I like using a rough sandpaper on the copper because you get a more matte surface finish vs shiny. It really doesn't scan well when its shiny, example:

This is the moment Rej's open source Z80 woke up and said hello!

After Zilog’s April 2024 announcement, ReJ quickly taped out a drop-in replacement to preserve retrocomputing and legacy systems.

Taped out on TT07, it's a landmark in democratizing chip design.

Great meeting Mohamed Kassem at Latch-Up conference! Excited to watch ChipFoundry pick up the torch to enable SkyWater shuttle runs

Tobor Robotics Open source, modular, highly customizable robotics and automation platform

We will have an Evezor robot arm handling wafers. Check out their newer version on sale now via @crowdsupply.bsky.social !

crowdsupply.com/evezor-inc/t...

We will also have a Maasi spin coater

github.com/klotzsch-lab...

We will bring a lithography machine based on Hacker Fab stepper v2.1

docs.hackerfab.org/home/fab-too...

YouTube video by John McMaster TWIMSKAN robot arm

FOSSF Silicon has applied to @opensaucelive.bsky.social to bring FOSS semiconductor fabrication tools in a mock fab. Hope to see you there!

www.youtube.com/watch?v=JADZ...

OMG I just found out you can do this:

export MANPAGER='vim +MANPAGER --not-a-term -'

to use vim as your man pager.

It has syntax highlighting. You can jump to other man pages by pressing 'K' <3

Here's a video of the testing I did

youtu.be/4fpqKfqd39Q?...

24 small triangles rendered without and without edges highlighted for debugging.

Triangle rasterisation is surprisingly complex. There are multiple approaches and decisions to make on which pixels to include. As part of testing my Earthrise #FPGA graphics engine, I've created visual tests to complement more automated testing.

my #TinyTapeout chip lives!