News

CAN FD specification released

April 19, 2012. Bosch has released the first version of the CAN FD (CAN with flexible data-rate) specification. Additionally, CiA has initiated a kick-off meeting for a CAN FD interest group as well as a CAN-FD marketing group. First 32-bit micro-controllers supporting CAN FD are expected by end of 2012.

Bosch has developed jointly with other CAN experts the CAN FD data link layer protocol. This approach supports higher bit-rates than 1 Mbit/s and allows frame payloads longer than 8 byte. CAN FD makes use of the internationally standardized CAN high-speed transceivers (ISO 11898-2). For bus-line topologies, the data-rate can be increased to 8 Mbit/s and theoretically higher data-rates using state-of-the-art transceivers. For passive star topologies as used in passenger cars the maximum data-rate is expected to be 2 Mbit/s.

CiA has organized a first open CAN FD meeting participated by OEMs, ECU suppliers, chipmakers, and other interested users from non-automotive industries.

CiA is going to organize CAN FD information events. More information is already available in the CAN Newsletter Online (www.can-newsletter.org). Additionally you may download a paper about CAN-FD presented at the iCC in March 2012.