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07-19-2011 08:37 AM
when the extended CAN is used why the arbitration ID is ORed with 0x20000000?
Thanks
Mahadev
07-19-2011 09:06 AM
What makes you think it is OR'ed?
The extended CAN ArbID is 29 bits so any bits higher than that have no meaning.
07-19-2011 09:22 AM
That is the way NI can handle extended message id's.
They probably have some logic that checks the 30th bit.
You just have to mask out that bit when you are reading the arbitrationid.
07-20-2011 01:59 AM
refer to
http://digital.ni.com/public.nsf/allkb/2FA120A37EDBC51D86256854004FB0C7
