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I-CAN-hack / automotive

Rust crate providing a variety of automotive related libraries, such as communicating with CAN interfaces and diagnostic APIs
MIT License
34 stars 7 forks source link

[ISO-TP] Check frame length #38

Closed pd0wm closed 3 months ago

pd0wm commented 3 months ago 
10.4.2.2     CAN frame data optimization (TX_DL = 8)
If this solution is used, the DLC does not always need to be 8. If the N_PDU to be transmitted is shorter
than 8 bytes, then the sender may optimize the CAN bus load by shortening the CAN frame data to
contain only the number of bytes occupied by the N_PDU (no padding of unused data bytes). CAN frame
data optimization can only be used for an SF, FC frame or the last CF of a segmented message.