st.com blocks scripted download and its CSP blocks a browser-side fetch from
leaving the page, so this came from a mirror and is Rev 1 (preliminary, 65pp).
Verified it is the right document and that the LQFP48 pinout and every pin the
swap depends on are present. Flagged in the README as unsuitable for electrical
figures - pull the current Rev 20 by hand for those.
Co-Authored-By: Claude Opus 5 <[email protected]>
CH32L103 datasheet and reference manual, plus the CH334/335 hub datasheet.
Documents/README.md notes which section of each was load-bearing, and flags
the missing STM32F103C8T6 datasheet needed for the pin-number overlay.
Co-Authored-By: Claude Opus 5 <[email protected]>
Two mirrored halves plus a numpad that carries the USB hub. Captures the
architecture decisions and the reasoning behind them: CH32L103 with an
STM32F103 pin-compatible escape hatch, split protocol tunnelled over USB-C
SBU through the numpad, hotswap sockets bottom-side, and why crystal-less
USB was ruled out across the whole WCH catalogue.
No boards ordered, no firmware written. Layout still undesigned.
Co-Authored-By: Claude Opus 5 <[email protected]>
