62 lines
2.3 KiB
Plaintext
62 lines
2.3 KiB
Plaintext
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Nanopb is a small code-size Protocol Buffers implementation in ansi C. It is
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especially suitable for use in microcontrollers, but fits any memory
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restricted system.
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Homepage: http://kapsi.fi/~jpa/nanopb/
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Using the nanopb library
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========================
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To use the nanopb library, you need to do two things:
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1) Compile your .proto files for nanopb, using protoc.
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2) Include pb_encode.c and pb_decode.c in your project.
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The easiest way to get started is to study the project in "examples/simple".
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It contains a Makefile, which should work directly under most Linux systems.
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However, for any other kind of build system, see the manual steps in
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README.txt in that folder.
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Using the Protocol Buffers compiler (protoc)
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============================================
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The nanopb generator is implemented as a plugin for the Google's own protoc
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compiler. This has the advantage that there is no need to reimplement the
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basic parsing of .proto files. However, it does mean that you need the
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Google's protobuf library in order to run the generator.
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If you have downloaded a binary package for nanopb (either Windows, Linux or
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Mac OS X version), the 'protoc' binary is included in the 'generator-bin'
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folder. In this case, you are ready to go. Simply run this command:
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generator-bin/protoc --nanopb_out=. myprotocol.proto
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However, if you are using a git checkout or a plain source distribution, you
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need to provide your own version of protoc and the Google's protobuf library.
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On Linux, the necessary packages are protobuf-compiler and python-protobuf.
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On Windows, you can either build Google's protobuf library from source or use
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one of the binary distributions of it. In either case, if you use a separate
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protoc, you need to manually give the path to nanopb generator:
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protoc --plugin=protoc-gen-nanopb=nanopb/generator/protoc-gen-nanopb ...
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Running the tests
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=================
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If you want to perform further development of the nanopb core, or to verify
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its functionality using your compiler and platform, you'll want to run the
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test suite. The build rules for the test suite are implemented using Scons,
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so you need to have that installed. To run the tests:
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cd tests
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scons
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This will show the progress of various test cases. If the output does not
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end in an error, the test cases were successful.
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