AnsweredAssumed Answered

BF537 CAN Dataoverrun errors

Question asked by pj0585 on Jan 24, 2012
Latest reply on Feb 12, 2012 by pj0585

Hi all,

 

I'm working with blackfin BF537-STAMP board & blackfin-linux-dist 2010R1-RC5.

 

I've configured the CAN to work around at 93% of the max CAN speed. When the other blackfin sends a lot of CAN messages, then I see dataoverrun errors from the receiving CAN driver.

 

I was looking into the CAN driver and found out that the CAN driver is using only 1 mailbox for receiving CAN messages.

 

Is it that the blackfin CAN Driver cannot handle such a high baudrate? (because it is not making use of all the receive mailboxes)

 

Has anyone used CAN at bitrates of 90% or above of the max CAN bitrate?

 

-Prasant

Outcomes