wolfHAL is a lightweight, OS-agnostic, compiler-agnostic hardware abstraction layer for embedded targets written in C. It provides a uniform driver model with vtable dispatch by default and an opt-in single-instance fast path for size-constrained builds.
wolfHAL/ Public headers (API surface)
platform/ Platform-specific device macros and definitions
src/ Driver implementations (generic + platform)
boards/ Example board configurations used for testing and examples
examples/ Example applications
tests/ Test framework and test suites