lpcware

CAN bus arbitration issue.

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by CH Wu on Thu May 07 20:24:09 MST 2015
Hello,

I would like to test the CAN bus conflict condition.
The user manual described as below. I'm confused that why the "(with the exception of the arbitration field)" is mentioned on the Bit1Error section.
What I want to know is that if there are two same ID which issue on CAN bus at same time. Is there any flag will be setted?
I would like to change the ID if the ID is hang on a arbitration situation too many times. Therefore, I need some indicator to check this kind of situation.

Bit1Error. During the transmission of a message (with the exception of
the arbitration field), the device wanted to send a HIGH/recessive level
(bit of logical value ‘1’), but the monitored bus value was
LOW/dominant.

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