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Re: Link type FlexRay


From: Guy Harris <guy () alum mit edu>
Date: Tue, 19 Jan 2016 18:00:16 -0800

On Jan 19, 2016, at 5:50 PM, Guy Harris <guy () alum mit edu> wrote:

OK, so the new format is that the frame begins with a measurement header, which is followed by the bitstream from the 
bus?

Is the bitstream from the bus padded in that fashion?

From the Wikipedia article on FlexRay (the first of the ISO standards the article mentions costs CHF 118, so I'm not 
going to buy them immediately):

      https://en.wikipedia.org/wiki/FlexRay

a frame consists of some framing bits at each end of the frame, with each octet in the frame containing 2 bits of 
per-byte framing followed by the 8 bits of the octet.  Would LINKTYPE_FLEXRAY/DLT_FLEXRAY frames include all of those 
bits?  If so, where does the padding appear?

(I'm assuming here that one packet in a pcap or pcapng file with type LINKTYPE_FLEXRAY corresponds to a FlexRay frame, 
of the sort described at

        http://www.ni.com/white-paper/3352/en/#toc4


under "Frame Format".)
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