zephyr/samples/modules/nanopb/README.rst
Pieter De Gendt 6c273f598f doc: services: serialization: Add Nanopb entry
Move part of the Nanopb sample documentation to a serialization entry
and add information on how to configure proto files.

Signed-off-by: Pieter De Gendt <pieter.degendt@basalte.be>
2024-03-01 10:21:34 +00:00

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.. _nanopb_sample:
Nanopb sample
#############
Overview
********
A simple protocol buffer sample using :ref:`nanopb_reference` for serializing structured data
to platform independent raw buffers or streams.
The structured data to encode/decode is presented as follows:
.. code-block:: proto
syntax = "proto3";
message SimpleMessage {
int32 lucky_number = 1;
bytes buffer = 2;
int32 unlucky_number = 3;
}
Configuration
*************
This sample uses two configuration options to modify the behavior.
* :kconfig:option:`CONFIG_SAMPLE_BUFFER_SIZE` sets the ``buffer`` field's size
* :kconfig:option:`CONFIG_SAMPLE_UNLUCKY_NUMBER` either enables or disables the ``unlucky_number``
field.
Building and Running
********************
This application can be built as follows:
.. zephyr-app-commands::
:zephyr-app: samples/modules/nanopb
:host-os: unix
:board: qemu_x86
:goals: run
:compact: