wiki:crkit/Software/Firmware/Framework/R3_arch/udp

User Data Protocol

Figure 1 - UDP Packet Structure (source : wikipedia)


  • UDP used for Host <-> CRKit communication.
  • UDP Port 1000 - RMAP packets
  • UDP Port 1001 - Status packets
  • UDP Port 1002 - Data packets
  • Source Port Number == Destination Port Number == one of the three UDP port number defined above
  • Length == Datagram size in bytes e.g. 8 (UDP header) + UDP Payload, min. UDP payload = 20 bytes. Note, UDP datagram size + IP header > 46 bytes (IP header = 20 bytes).
  • Checksum == 0x0000, not used (optional for IPv4)
  • Further UDP information at http://en.wikipedia.org/wiki/User_Datagram_Protocol.

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Last modified 7 years ago Last modified on 07/15/10 16:09:48

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