CAN message Intel and Motorola format

[electronicsLearner77]

I have several times read through the documents to understand the motorola and intel format for creating the CAN dbc file or to interpret the CAN messages, but i always end up in confusion. Please help me with any technique to remember it. One of the documents i always refer in case of confusion is attached.

 

[kellys_eye]

Please help me with any technique to remember it.

The best way is to UNDERSTAND it - then you don't have to 'remember' anything.

There are numerous tutorials on the CAN Bus and the protocol is not a lot different from any basic serial data protocol. If you are having difficulty understanding it then maybe it isn't for you as a subject???

If there is something specific about your understanding then please let us know.

Check out these scans from an old Elektor article on CANBUS

 

[Harald Kapp]

See also "big endian" (Motorola) vs. "little endian" (Intel) formats, e.g. here.
It is all about the order og bytes when representing multi-byte data.

 

[electronicsLearner77]

Ok one thing i understood is that the CAN Byte order and the bit order is fixed which i have not realized earlier, hopefully i will not make mistake in future.