CAN signal decoding

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Re: CAN signal decoding

Postby LM358 » Thu Sep 17, 2015 4:59 pm

Thanks for the info Steve !
So we have a kind of built-in acceptance filter in the Pico; I did not know that.

@ Belet: OBD2 communication is mostly between DiagTool and Engine ECU.
Therefore, it is best to search for the identifier 7E8 (= engine ECU - only valid forb OBD2, not for
internal communication with other ECU's).
Please do understand that OBD2 is query - reply based. The diag tool (scanner) wil send queries (ID = 7DF) and receives replies (ID = 7E8). You will see both ID's on the bus while reading the "live data".

Good luck - Eric (Flanders, part of Belgium)
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Re: CAN signal decoding

Postby Belet » Fri Sep 18, 2015 8:41 am

Thanks for your sharing, Eric
I learned a lot about Can bus in depth.
You are an adept at it.

Best regards
Belet
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