cortex-m0-plus

MM32 全系列 MCU（Cortex-M0/M0+/M3/STAR-MC1，25 个型号）的 IAP / OTA 串口在线升级开源实现：可移植 Bootloader + 串口上位机 + HEX 合并工具，三段 CRC32 校验，Apache-2.0。 ｜ Serial (UART) IAP/OTA bootloader for MM32 MCUs — portable across Cortex-M0/M0+/M3/STAR-MC1, 25 device projects, 3-stage CRC32, host PC tool, Apache-2.0.

A deterministic decision kernel with a field-enforced equivalence contract: the same C file runs as phone shadow, MCU actuator, and offline replay — 11k+ real-world steps, zero divergences. Cycling safety cue is the demonstrator.