CAN0 PGN-126996 malformed - Printable Version +- OpenMarine (https://forum.openmarine.net) +-- Forum: OpenPlotter (https://forum.openmarine.net/forumdisplay.php?fid=1) +--- Forum: Bug Reports (https://forum.openmarine.net/forumdisplay.php?fid=4) +--- Thread: CAN0 PGN-126996 malformed (/showthread.php?tid=5736) |
CAN0 PGN-126996 malformed - loutre - 2024-10-01 Hi, When sniffing the CANbus I realise SignalK server is sending a broken pgn-126996 (0x1F014) messages, this trigger the Garmin Multi-Function Display to keep asking for it and generating lots of noise on the NMEA bus. Signalk version: 2.11.0 OpenPlotter: latest CPU: RPI 5, 8Gb with SDD HAT: PICAN-M Details: can0 18EA6400 [3] 14 F0 01 --> priority 6, pgn 0xEA00, destination 0x64 (SignalK), source 0x00 (Garmin Multi Function Display), request for pgn 0x01F014 can0 0DF01464 [8] 40 86 20 D6 9B 02 53 69 can0 0DF01464 [8] 41 67 6E 61 6C 20 4B FF can0 0DF01464 [8] 42 FF FF FF FF FF FF FF can0 0DF01464 [8] 43 FF FF FF FF FF FF FF can0 0DF01464 [8] 44 FF FF FF FF FF FF FF can0 0DF01464 [8] 45 FF FF 32 2E 31 30 2E can0 0DF01464 [8] 46 30 FF FF FF FF FF FF can0 0DF01464 [8] 47 FF FF FF FF FF FF FF can0 0DF01464 [8] 48 FF FF FF FF FF FF FF can0 0DF01464 [8] 49 FF FF FF FF FF FF 63 can0 0DF01464 [8] 4A 61 6E 62 6F 61 74 6A can0 0DF01464 [8] 4B 73 FF FF FF FF FF FF --> priority 3, pgn 0x1F014, destination 0xFF(all), source 0x64(Signalk), message length -> 134 bytes long (0x40 0x86). The issue: the message is 77bytes long and not 134 bytes long. If I compare with another device and I compare I will have: can0 19F01477 [8] 40 86 35 08 9A 02 44 75 can0 19F01477 [8] 41 76 69 76 69 65 72 20 can0 19F01477 [8] 42 4D 61 72 69 6E 65 20 can0 19F01477 [8] 43 2D 20 54 61 6E 6B 20 can0 19F01477 [8] 44 73 65 6E 73 6F 72 FF can0 19F01477 [8] 45 FF FF 70 79 74 68 6F can0 19F01477 [8] 46 6E 20 30 2E 31 61 FF can0 19F01477 [8] 47 FF FF FF FF FF FF FF can0 19F01477 [8] 48 FF FF FF FF FF FF FF can0 19F01477 [8] 49 FF FF FF FF FF FF 74 can0 19F01477 [8] 4A 65 73 74 20 30 2E 31 can0 19F01477 [8] 4B 61 FF FF FF FF FF FF can0 19F01477 [8] 4C FF FF FF FF FF FF FF can0 19F01477 [8] 4D FF FF FF FF FF FF FF can0 19F01477 [8] 4E FF FF FF 30 30 30 30 can0 19F01477 [8] 4F 30 30 30 31 FF FF FF can0 19F01477 [8] 50 FF FF FF FF FF FF FF can0 19F01477 [8] 51 FF FF FF FF FF FF FF can0 19F01477 [8] 52 FF FF FF FF FF FF FF can0 19F01477 [8] 53 00 01 FF FF FF FF FF --> priority 6, pgn 0x1F014, destination 0xFF(all), source 0x77(My own development), message length -> 134 bytes long (0x40 0x86). This message is 134 bytes and understood by the Garmin (address 0x00). Thanks in advance Bertrand Duvivier RE: CAN0 PGN-126996 malformed - loutre - 2024-10-01 (2024-10-01, 12:42 PM)loutre Wrote: Working with SignalK to get it resolve ;-) |