2011/5/13 Wolfgang Grandegger <[email protected]> > Hi Willy, > > On 05/13/2011 10:42 AM, Willy Lambert wrote: > > 2011/5/3 Willy Lambert <[email protected]> > > > >> Hi all, > >> > >> I have a "visibly working" can network but some arbitration errors often > >> occur. I am using socket_can under canfestival and have configure a set > of 3 > >> node (0x05,0x32,0x33) with periodic PDO (TX and RX) plus a nodeguarding > on > >> each node. The bus is at 250K and the period of the SYNC word is 10ms. > Here > >> is the candump extract of a period (there are always in the same order) > : > >> > >> can1 80 [0] > >> can1 332 [5] 93 00 00 00 00 > >> can1 1B2 [2] 27 00 > >> can1 20000002 [8] 01 00 00 00 00 00 00 00 ERRORFRAME > >> can1 1B3 [2] 27 00 > >> can1 20000002 [8] 02 00 00 00 00 00 00 00 ERRORFRAME > >> can1 2B2 [6] 93 00 00 00 00 01 > >> can1 20000002 [8] 02 00 00 00 00 00 00 00 ERRORFRAME > >> can1 2B3 [6] 93 00 00 00 00 01 > >> can1 333 [5] 93 00 00 00 00 > >> can1 3B2 [7] 00 00 00 00 04 00 0A > >> can1 3B3 [7] FE FF FF FF 02 00 0A > >> can1 705 [0] remote request > >> can1 732 [0] remote request > >> can1 733 [0] remote request > >> can1 705 [1] 05 > >> can1 732 [1] 05 > >> can1 733 [1] 05 > >> > >> > >> Here is some additionnal stats : > >> root@beta:~# ip -d -s link show can1 > >> 4: can1: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN > >> qlen 10 > >> link/can > >> can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 1000 > >> bitrate 250000 sample-point 0.875 > >> tq 250 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 > >> sja1000: tseg1 1..16 tseg2 1..8 sjw 1..4 brp 1..64 brp-inc 1 > >> clock 8000000 > >> re-started bus-errors arbit-lost error-warn error-pass bus-off > >> 0 0 9684 0 0 0 > >> RX: bytes packets errors dropped overrun mcast > >> 225353 84576 0 0 0 0 > >> TX: bytes packets errors dropped carrier collsns > >> 32163 66462 9684 0 0 0 > >> root@beta:~# > >> > >> > >> Should I ignore these errors ? Should I review my scheduling ? > >> > > > > My I bump this ? If the question is mal-formed or innapropriate on this > > mailing liste please tell me so I don't wait for an answer :p > > The error is definitely reported by the CAN controller and therefore > it's due to an electrical problem on the CAN bus. Well, I'm not a CAN > *hardware* expert and therefore I can't tell if such error do harm or > can even be ignored. Googling for "can arbiration lost" revealed: > > > http://www.cancapture.com/knowledgebase/18-cancaptureknowledgebase/33-kb-arbitration-lost-error-messages.html > > which seem to answer you question to some extend. >
Thanks, your are really better than me in googleling Is there a mean to disable this error un socketCan ? > > Wolfgang. >
_______________________________________________ Socketcan-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/socketcan-users
