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Baochip makes open-source hardware.
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
Dabao Evaluation Board for Baochip-1x
A powerful new RISC-V microcontroller with mostly open RTL
www.crowdsupply.com
December 30, 2025 at 7:22 PM
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-...
Xous: A Pure-Rust Rethink of the Embedded Operating System
Xous is a message-passing microkernel implemented in pure Rust, targeting secure embedded applications. This talk covers three novel aspe...
media.ccc.de
December 30, 2025 at 7:05 PM
one hour to our talk! cya there.
December 28, 2025 at 9:06 PM
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!
[39c3] Xous: A Pure-Rust Rethink of the Embedded Operating System
The world is full of small, Internet-of-Things (IoT) gadgets running embedded operating systems. These devices generally fall into two categories: larger devices running a full operating system using ...
fahrplan.events.ccc.de
December 27, 2025 at 5:15 PM
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!
December 21, 2025 at 5:29 AM
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
December 14, 2025 at 7:00 AM
Nice to see someone has already tried IRIS on their Baochip sample: social.v.st/@cibomahto/1...
Matt Mets (@[email protected])
Attached: 4 images If you get some electronics from a dude in a sketchy Amsterdam cafe, you might want to inspect it before trusting it- luckily he made that easy to do! Here are some IRIS-style back...
social.v.st
December 13, 2025 at 1:14 PM
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
Join the baochip Discord Server!
Baochip Community Server | 19 members
discord.gg
December 12, 2025 at 5:40 AM
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.
December 1, 2025 at 4:38 PM
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!
Join the baochip Discord Server!
Baochip Community Server | 4 members
discord.gg
November 28, 2025 at 2:34 PM
Block diagram of the chip now up on the bao1x repo!
November 25, 2025 at 10:50 AM
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.
November 17, 2025 at 4:19 AM
Closeup view of the back side of the chip itself!
November 12, 2025 at 4:48 AM
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).
November 10, 2025 at 10:16 PM
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...
November 8, 2025 at 7:19 PM
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...
Teardown 2025 - bunnie - Trusting Hardware
YouTube video by Crowd Supply
www.youtube.com
November 7, 2025 at 6:13 PM
Source code first: github.com/baochip/baoc...

Stay tuned for more!

#opensource #priorities
GitHub - baochip/baochip-1x: Baochip 1x Silicon
Baochip 1x Silicon. Contribute to baochip/baochip-1x development by creating an account on GitHub.
github.com
November 5, 2025 at 5:21 PM