Source Tree Structure

The Zephyr source tree provides the following top-level directories, each of which may have one or more additional levels of subdirectories which are not described here.

arch

Architecture-specific nanokernel and platform code. Each supported architecture has its own subdirectory, which contains additional subdirectories for the following areas:

• architecture-specific nanokernel source files
• architecture-specific nanokernel include files for private APIs
• platform-specific code

boards

Board related code and configuration files.

doc

Zephyr documentation-related material and tools.

drivers

Device driver code.

include

Include files for all public APIs, except those defined under lib.

kernel

Microkernel code, and architecture-independent nanokernel code.

lib

Library code, including the minimal standard C library.

misc

Miscellaneous code.

net

Networking code, including the Bluetooth stack and networking stacks.

samples

Sample applications for the microkernel, nanokernel, Bluetooth stack, and networking stacks.

tests

Test code and benchmarks for the various kernel features.

scripts

Various programs and other files used to build and test Zephyr applications.