feat: add Seeed XIAO STM32C5 support - #3048

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cumin777 wants to merge 17 commits into

stm32duino:mainfrom

cumin777:feat/xiao-stm32c5

Commits on Aug 10, 2026

Commits on Aug 17, 2026

feat(xiao): enable SPI3 pin mapping
cumin777
committed
f326cf1
fix(spi): bound HAL v2 polling transfers
cumin777
committed
58dbf25

Commits on Aug 18, 2026

fix(spi): initialize bus on begin
cumin777
committed
89bbefa
fix(xiao): select SPI3 alternate function for MOSI
cumin777
committed
e1884f2
fix(usb): limit CDC transmit blocks to packet size
cumin777
committed
178420b
fix(usb): use non-overlapping C5 CDC PMA buffers
cumin777
committed
73e186f
fix(xiao): keep SPI3 MOSI in board pin namespace
cumin777
committed
1211767
feat(xiao): expose onboard IMU control pins
cumin777
committed
69d48fe

Commits on Aug 19, 2026