Priority is always 7 for multi-packets

[bigoulours]

Hello I tried using this custom device to send messages with Data length > 8Bytes (raw mode).
The payload is send according to the j1939 spec (multi-packets) but the priority seems to always be equal to 7 (first byte of identifier = 0x1C).
Is it a bug or can I somehow change it?

[ghost]

Hi @bigoulours
J1939 specification says "Default priority: 7 (Priority used regardless of the PGN being transported)".
NI-XNET hard coded this implementation at the driver level. You can reach out to NI Technical Support to request for special patch to use the priority from PGN of frame instead. However, you cannot switch between default priority and frame priority at runtime.
Thanks.