Xous security focused open source on 22nm custom silicon
10 hours ago
- #Baochip-1x
- #Hardware
- #Xous
- The Xous ecosystem has developed a custom chip called Baochip-1x, fabricated in TSMC 22 nm.
- The 'Dabao' campaign offers evaluation board pre-orders for about $9, significantly cheaper than the $600 Precursor.
- Baochip-1x is packaged in a WLCSP with a polished back-side for IRIS-style inspection, enhancing transparency.
- Boot0/boot1 artifacts for Baochip-1x are finalized, with no changes expected for Precursor users.
- Key updates include rkyv upgrade to 0.8, xous-ipc revision to 0.10, and deprecation of xous_ipc::String<N>.
- Refactoring of blitstr2, gam, modals, and graphics-server to support new screen sizes and frame buffer targets.
- PDDB and root-keys refactored for leaner targets, with key API moved to keystore-api crate.
- Bao-1x target features a 350MHz Vexriscv, 2 MiB RAM, and 4 MiB FLASH, faster than Precursor.
- A slimmed-down Xous build and a vscode plugin ('baochip') available for new developer onboarding.
- Users are encouraged to join Baochip discord or 'the-commit-log' channel on Matrix for updates.
- Future plans include maintaining Precursor compatibility and exploring new product ideas with Baochip.