zephyr/doc/build/snippets/index.rst
Marti Bolivar ee4b134dd6 doc: add snippets documentation
Document this new build system feature.

Since its purpose is customizing application builds, the logical place
for the main body of documentation is in a new snippets/ directory in
doc/build/. Create that directory and add its initial documentation.

Like boards and samples, however, we expect people to write
documentation for each snippet within the directory that defines the
snippet itself. Therefore, add a new top-level snippets/ directory and
stub out the documentation needed to document individual snippets as
well.

Add documentation and cross-references in other required places as
well.

Signed-off-by: Marti Bolivar <marti.bolivar@nordicsemi.no>
2023-03-26 16:12:41 +02:00

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.. _snippets:
Snippets
########
Snippets are a way to save build system settings in one place, and then use
those settings when you build any Zephyr application. This lets you save common
configuration separately when it applies to multiple different applications.
Some example use cases for snippets are:
- changing your board's console backend from a "real" UART to a USB CDC-ACM UART
- enabling frequently-used debugging options
- applying interrelated configuration settings to your "main" CPU and a
co-processor core on an AMP SoC
The following pages document this feature.
.. toctree::
:maxdepth: 1
using.rst
/snippets/index.rst
writing.rst
design.rst