CAN signal decoding

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LM358
Newbie
Posts: 3
Joined: Sat Sep 05, 2015 11:49 am

Re: CAN signal decoding

Post by LM358 »

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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Belet
OneWave
OneWave
Posts: 28
Joined: Mon Jun 01, 2015 1:29 am

Re: CAN signal decoding

Post by Belet »

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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