Hey @chrisgammell.bsky.social , I've just caught up on your excellent chat with Tim Ansell @mith.ro in The Amp Hour ep #703. Have you scheduled and executed the 2 hours on the weekend to start your own chip-making journey yet? A remake of the much loved and rare 6580/6581 SID chip perhaps?

**Interesting SPI Routing with iCE40 FPGAs** I wrote about iCE40 FPGAs, and why the way an FPGA is configured can lead to interesting board design decisions. @mith.ro's Fomu is a useful study due to eschewing a USB-Serial chip for accessing the FPGA and SPI flash. danielmangum.com/posts/spi-ro...

Anyone used github.com/regymm/pcie_7x or know any more information about it? Has anyone used this with LitePCIe?

I wrote a custom network stack in C to run on my custom silicon RISC-V core, supporting both IPv4 and IPv6 and its now good enough to make HTTP requests. But maybe I'll turn that around and have it accept HTTP requests. We'll see. feat. a really ugly bodge to prevent over-current on the memory bus

I really want @mith.ro 's wafer.space silicon manufacturing shuttles to succeed and continue to be available, so I was trying to brainstorm some retro-computer/console chips which may be viable. Most can be done on FPGA today, but custom silicon could make assembly cheaper (reducing FPGA support).

Live now! Join @crowdsupply.bsky.social @helenleigh.bsky.social for a conversation with Tim Ansell (@mith.ro) about @wafer.space, a new way for chip designers to easily turn a design into real, working chips: www.youtube.com/watch?v=tEOm... #OpenHardware #OSHW #OpenSilicon #OpenPDK

5m until we are live @ www.youtube.com/watch?v=tEOm...

This live stream starts in a few hours!

It was the first time we enabled 4 tile high designs, enabling a monster crowd sourced RISC-V microcontroller competition called Asteroid. At 60k standard cells, this is the biggest design so far on Tiny Tapeout. tinytapeout.com/chips/ttsky2...

And finally here’s a cool current steering DAC that’s designed to drive a VGA monitor by Anton - good to see your mixed signal skills evolving Anton! tinytapeout.com/chips/ttsky2...

It’s great to see people using our service to test bigger mixed signal designs like OpenRAM. In this test, Jesse put a tiny 16x32 RAM inside a 4 tile digital design. tinytapeout.com/chips/ttsky2...

We have our first commissioned art from @bleeptrack.de , “Cross Stitch Creatures” - the first of 4 in a series exploring silicon art. tinytapeout.com/chips/ttsky2...

Mitch Altman has long inspired us, and as a tribute we included an ASIC version of his classic TV-B-Gone universal off button for TVs. We also took the opportunity to test Sylvain Munalt’s ROM. tinytapeout.com/chips/ttsky2...

Inspired by Peter Kinget, we commissioned Andrew Kang to create a Mini MOSBius especially for us. The idea is to enable analog designers to get faster feedback on their circuit designs with an analog FPGA. tinytapeout.com/chips/ttsky2...

We just packed 237 of your projects into our most packed ASIC to date and submitted it for manufacture. Let’s take a look inside…

@mith.ro is on the current episode of The Amp Hour, for another general-access chip manufacturing option. Give the podcast a listen, and think about the possibilities of making your own small-run chips ! theamphour.com/703-building...

Leo Moser and myself will be on @crowdsupply.bsky.social 's Teardown Session talking with @helenleigh.bsky.social about @wafer.space this Thursday (3rd October) - youtu.be/tEOmnN8IAjs

What happens when one of the main providers that enables #opensource #silicon to thrive...shuts down? Companies like @mith.ro's new wafer.space jump in and offer an even more compelling option. $7K for 1000 chips on the GlobalFoundries GF180MCU process. Learn more: theamphour.com/703-building...

100% legit. @nextpcb.bsky.social are wonderful supporters of the KiCad project and we will be making a blog post about this new OSHW site soon

Well, it blinks. The whole you have to unplug it from your computer and plug it into an SD card slot that doesn’t act as an SD host to run the design thing may get old rather quickly.

@mith.ro was interviewed by @chrisgammell.bsky.social about the @wafer.space service! Find out more at wafer.space!

It was awesome to be on @chrisgammell.bsky.social 's Amp Hour podcast again. Find out more about my latest endeavor to make custom silicon manufacturing accessible and follow @wafer.space and bookmark wafer.space to keep up to date!

Want to watch a live bringup of @tinytapeout.com 's first test chip with IHP? I'm cancelling my #open #source #silicon #stream and leaving the stage for Sylvain Munaut! He starts streaming shortly here: www.youtube.com/watch?v=indh...

"Which PCIe Specifications do you have open right now?" Yes.

Low power math within few clock cycles. Imagine it, then put it into silicon. Made by Vicharak aka @aksharvastarpara.bsky.social 's team and two FPGA freaks. Check - t.co/vBGGA2i0uX Thanks @mattvenn.net and @urishaked.bsky.social and whole @tinytapeout.com team for making this possible.

Nice article explaining ESD diodes (and protection): hackaday.com/2025/06/19/h...

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

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...

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?...

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!