William RickertandClaude Opus 5
2a6dc40f2e
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]>
1018 B
1018 B
Datasheets in use
Only the parts this design actually depends on. The wider WCH collection —
including the CH32X035 and CH32V203 docs used to rule out crystal-less USB —
lives in ~/Documents/Projects/WCH CH ICs/.
| File | Part | Why it's here |
|---|---|---|
CH32L103DS0.PDF |
CH32L103C8T6 | The MCU. Pinout, 64 K flash / 20 K SRAM, HSI accuracy table (§3.3.6), USBFS with 8 device endpoints (§1.4.20). |
CH32L103RM.PDF |
CH32L103C8T6 | Reference manual. USB clock path (§3.3.5.6), RB_UC_DEV_PU_EN internal 1.5 kΩ D+ pull-up, HSICAL/HSITRIM. |
CH334DS1.PDF |
CH334R | The hub. Variant feature table (which packages expose PSELF and port power switching), crystal-free caveats (§6.2), and the CH213 reference design for VBUS protection. |
Missing
- STM32F103C8T6 datasheet — the pin-compatible escape-hatch MCU. ST's site refused automated download; grab it from st.com or the LCSC CDN and drop it here. Needed to do the pin-number overlay flagged in the top-level README.