Welcome to the CAN-bus Wiki project

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
can_fd [2013/03/20 08:54]
heinz added description text, socketcan link
— (current)
Line 1: Line 1:
-===== CAN with flexible Data Rate  ===== 
  
-More than 20 years after introducing CAN, communication requirements have increased and CAN has reached it's bandwidth limits in some application fields. 
-To improve CAN regarding bandwith Bosch has specified CAN FD. The idea behind CAN FD is that after the arbitration phase of classic CAN the data rate can be increased. The data bits are transferred with a higher bit rate than in the arbitration phase when a transmitter has won the bus arbitration. The speed is limited only by the CAN transceiver signal delay and the signal delay on the cable. \\ Besides the increased bit speed the new CAN FD allows date frames up to 64 bytes compared with the maximum of 8 bytes with classic CAN. 
- 
-For more information see the BOSCH white paper on [[http://www.semiconductors.bosch.de/media/pdf/canliteratur/can_fd.pdf|CAN-FD (V1.1) ]]. Official introduced by BOSCH at the 13th international CAN Conference in March 2012. \\ Since May 2012 the new [[:controllers:bosch|M_CAN]] manual contains specific information on CAN FD used in this FPGA IP. 
- 
-[[http://can-newsletter.org/engineering/standardization/nr_stand_cia_canfd_120419 | CiA]] provides information on CAN FD and organizes world wide events to promote it. 
- 
-The Linux CAN device driver [[http://sourceforge.net/projects/can4linux/|can4linux]] supports this frame format already in it's 'virtual' mode. The same is true for the [[http://www.kernel.org/doc/Documentation/networking/can.txt | SocketCAN]] approach. 
- 
-[[http://www.kvaser.com/zh/kvaser/news/32-news/281-kvaser-demonstrates-can-fd-capability.html|Kvaser demonstrates CAN FD capability]] 

QR Code
QR Code can_fd (generated for current page)