This is a re-implementation of PhyPlus' SDK, aiming to be aligned to the HAL libraries from STM.
This codebase provides a PlatformIO framework, but it also works standalone.
See Makefile, where the examples/simple_no_platformio/main.c is compiled against the same source that PlatformIO would.
Nothing for now.
This code should work as-is on most PhyPlus boards, including the cheap "smartwatches" that are a scam.
You're mostly on your own, but feel free to open an issue if you have any comments.