CSP Packet Preprocessor¶

A preprocessor for verifying and identifying CSP 1.x packets.

If the checksum bit is set in the CSP header, this preprocessor will verify that the packet matches the incoming CRC32C checksum, else mark it as invalid.

Note that the CSP header does not include any time or sequence fields. The default preprocessor implementation will set the generation time as equal to the local reception time, and will use an incremental sequence count rotating over 16 bits. You can change this behavior by subclassing org.yamcs.tctm.csp.CspPacketPreprocessor and overriding the getGenerationTime and getSequenceCount methods.

dataLinks:
  - name: csp-bridge
    class: org.yamcs.tctm.UdpTcTmDataLink
    tmStream: tm_realtime
    tcStream: tc_realtime
    host: 127.0.0.1
    port: 10100
    commandPostprocessorClassName: org.yamcs.tctm.csp.CspCommandPostprocessor
    packetPreprocessorClassName: org.yamcs.tctm.csp.CspPacketPreprocessor
    packetPreprocessorArgs:
      cspId: 11