********* Structure ********* Tree ==== :: . ├── docs ├── examples ├── hw │   ├── bsp │   └── mcu ├── lib ├── src ├── test └── tools docs ---- Documentation examples -------- Sample with Makefile build support hw/bsp ------ Supported boards source files hw/mcu ------ Low level mcu core & peripheral drivers lib --- Sources from 3rd party such as freeRTOS, fatfs ... src --- All sources files for TinyUSB stack itself. test ---- Unit tests for the stack tools ----- Files used internally