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Thread: Linux Based CAN programming

  1. #1
    Newbie
    Join Date
    May 2007
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    15

    Post Linux Based CAN programming

    Hey all, I've done a good amount of searching around the forums, and frankly i like what i see . You guys got great info about the upcoming CAN standard that is pretty much in all of the new cars.

    I'm trying to go ahead here and work on a CAN based linux diagnostic program. I've got a good amount of programming done, but i'll take any pointers/help I can get. I've bought the t16-014 from http://www.multiplex-engineering.com/products.htm . If I were to try and code this stuff, is it controller specific? Eg. Would my program not work with an ELM based OBD scanner and vice versa?

    Most of the open source stuff out there is for Windows, and that is written for linux definetly has no support for CAN.

    Any tips appreciated.

    TIA

  2. #2
    Newbie
    Join Date
    Aug 2005
    Location
    Ohio
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    12
    I'd have to see one of the data sheets for the interface you bought, but I'm guessing no on the ELM compatibility. ELM use simple AT commands to retrieve data from their interface. That's why they have such a following. It's cake to get the data you need from the ECU.

    Here's the ELM data sheet: http://www.elmelectronics.com/DSheets/ELM327DS.pdf

    Supposedly the offering from OBDpros.com supports the same command set (user michbound on the forums here). Its cheaper too.
    2006 Nissan Maxima SE
    2002 GMC Envoy SLT
    Digital Deviation

  3. #3
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    Join Date
    May 2007
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    15
    This is all I have from them.

    http://www.multiplex-engineering.com/tech/manual/

    The ELM does look alot friendlier though....

  4. #4
    VENDOR - OBDPros
    Join Date
    Mar 2006
    Posts
    359
    Quote Originally Posted by andyman53 View Post
    This is all I have from them.

    http://www.multiplex-engineering.com/tech/manual/

    The ELM does look alot friendlier though....
    If you develop code for the multiplex it would not be compatible with the ELM, but looking at the manual for the multiplex looks like you could come up with a set of low level abstractions that would enable you to work with both the multiplex and the ELM command set.

    Paul
    www.obdpros.com

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