A version of the BIO core has been taped out and will be on the @wafer.space run 2! Thanks to Deepak Sharda (twitter: x.com/deeempak / website: lut4.com) for doing the heavy lifting of porting a version of the Baochip BIO core to this process! Full design available at github.com/dpks2003/bio...

The Baochip-1x is IR-inspectable. But, how does one read chips, and what does it even mean? Here's a blog post put out by @bunnie.org that helps make sense of the Baochip-1x SRAM macros, and its implications for trusted boot: www.bunniestudios.com/blog/2026/on...

Baochip is proud to be an inaugural member of the Pavona consortium. It's a strong step towards making secure, open source silicon broadly available. We look forward to vigorously advocating for the interests of small, independent contributors like ourselves. Source code at github.com/pavona/pavona

Attention C users: there's a new C-based SDK up for the Dabao, huge thanks to Armstrong Subero for pulling this together! github.com/armstrongsub...

New #HacksterCafe, ft. bunnie – whose @crowdsupply.bsky.social campaign for Dabao (powered by @baochip.com ) just wrapped! Making secure #hardware easy & open 👀 March 31, 10:30am PDT / 5:30pm UTC, on @hacksterio.bsky.social : ▶️ www.youtube.com/watch?v=dBod... ▶️ www.linkedin.com/events/74444...

One of my favorite features about the Baochip-1x is the BIO. I've just put out a post explaining the origin of the BIO, including a comparative study against the PIO and some examples of how to use it. www.crowdsupply.com/baochip/daba...

Read more about the back story behind Baochip on bunnie's blog: www.bunniestudios.com/blog/2026/ba...

Production tester for the dabao is ready! 100% of boards run through a test where every I/O is toggled, both buttons are pressed, serial ports tickled, and an initial OS image is loaded. Voltages and currents are also checked. The test checks for errors in soldering, and/or faulty components.

Interested in trying out a Baochip-1x? The 'dabao' evaluation board is now taking pre-orders on Crowd Supply: www.crowdsupply.com/baochip/dabao

Here's what a socket looks like for chip scale packages. Each one is custom made for a given chip package. A couple samples of the 0.4mm pitch Baochip CSP devices are laid out on the lower rim of the socket for size reference.

Behold the graveyard of Baochips! Security testing is hard, after the chips are locked the only recourse is to desolder and replace them when a test goes wrong or an attack sensor is tripped. On the upside, I'm getting really good at reworking CSPs.

Wanted a Dabao but couldn't get one at #39C3? Sign up here to be notified when they are ready for sale: www.crowdsupply.com/baochip/dabao

Missed our talk? If you want to learn about the OS or the chip, check out the recording at media.ccc.de/v/39c3-xous-...

one hour to our talk! cya there.

A reminder that tomorrow we'll be introducing Xous & Baochip at #39C3: fahrplan.events.ccc.de/congress/202... Day 2, 23:00 In hall 1!

Woo hoo! just in time: tape & reel packaged Dabao for #39c3. They will be at the #fail0verflow assembly with @bunnie.org . Also come see our talk on Day 2 23:00 in Room 1: "Xous: A Pure-Rust Rethink of the Embedded Operating System", where bunnie & xobs will co-present on Xous running on Baochip!

The basic dev board is in! Meet the "Dabao", a simple breakout board for the Baochip-1x. If you're interested in one and will be at #39C3, come find @bunnie.org at the fail0verflow assembly. He'll have a limited number of Alpha-1 release boards to give away! Source at github.com/baochip/dabao

Nice to see someone has already tried IRIS on their Baochip sample: social.v.st/@cibomahto/1...

Apparently the previous discord link expired. Didn't even realize that they could expire... Here's a link that should have no expiration! discord.gg/yesbcPF9Xy

It's nice to be able to simulate your constant-time code and prove to yourself that you got it right. Pictured is a simulation of AES chaffing, where fake and real data are computed in a random order. The timing of fake->real and real->fake has to be identical in order to mask power side channels.

We've got a Discord now up and running. Come join if you have questions or need support! discord.gg/5SgHvcNB It's early days and we're still figuring out how to configure things, so thanks for your patience as we iron out the wrinkles!

Block diagram of the chip now up on the bao1x repo!

Backside IR image of the chip! The Baochip-1x is packaged specifically to enable you to verify that you've got the correct chip, and not a fake or a substitute part (see bunnie.org/iris for how). The final chip will have part numbering that overlaps the memory array on the lower third of the chip.

Closeup view of the back side of the chip itself!

CHIIIIIIPS!!! 12" wafer of CSP bumped chips, hot off the line (solder balls are face-up in this photo, with a couple die already removed for testing).

A killer app for SoC source code is debugging your code with RTL simulation. Simulation gets you cycle-accurate views into what's happening throughout the system - the program counter, registers, state machines. Learn more on how to simulate the Baochip-1x here: baochip.github.io/baochip-1x/c...

Here's a talk by @bunnie.org that lays much of the foundation for why Baochip, and why it's happening now: www.youtube.com/watch?v=pxQC...

Source code first: github.com/baochip/baoc... Stay tuned for more! #opensource #priorities