Marc Kleine-Budde wrote: > Sebastian Smolorz wrote: >> Oliver Hartkopp: >>> The problem is to define what a dlc > 8 provided by the CAN controller >>> (which IS a BUG inside the CAN controller!) should mean to the rest of >>> the data inside the registers containing the received CAN frame: >>> >>> - do we assume the rest to be a valid CAN frame? >>> - should we drop the frame ? >> The Bosch CAN specification revison 2.0 part B says that a reaction to a DLC >>> 8 is not defined but the reference CAN model defines as de-facto standard >> the assumption that if DLC > 8 then DLC := 8. > > So we limit to 8 and do not drop the frame and just handle it like it's > a totally valid frame with dlc == 8.
Yes. > The question remains, do we want to print out an error message or maybe > a can error frame? If it's allowed to happen (legal), we do *not* print an error message. Otherwise it's just a source of trouble. Wolfgang. _______________________________________________ Socketcan-core mailing list [email protected] https://lists.berlios.de/mailman/listinfo/socketcan-core
