CAN Bus

CAN Bus¶

https://github.com/linux-can/can-utils

Versions¶

CAN2.0A (ISO 11898): Standardized as ISO 11898 in 1993. Supports standard frames (11-bit identifiers).
CAN2.0B: Released in 1995. Supports both standard and extended frames (11-bit and 29-bit identifiers). CAN 2.0B is backwards compatible with CAN 2.0A, with the exception that the CAN 2.0A controllers have to be updated to be aware of CAN 2.0B and have the passive feature. If they don’t, CAN 2.0A controllers will flag CAN 2.0B extended frame messages as errors.
CAN-FD: The “CAN with Flexible Data-rate” protocol. Protocol updated to change the meaning of different bits in the arbitration sequence, as well as the ability for the bit rate to be changed during the data part of the packet (generally increased to increase bit rate).