floats in big-endian format. Mixed-endian
systems (different layout for ints and floats)
are currently not supported.
-NANOPB_INTERNALS Set this to expose the field encoder functions
- that are hidden since nanopb-0.1.3. Starting
- with nanopb-0.2.4, this flag does nothing. Use
- the newer functions that have better interface.
PB_ENABLE_MALLOC Set this to enable dynamic allocation support
in the decoder.
PB_MAX_REQUIRED_FIELDS Maximum number of required fields to check for