Re: [opendiag] Re: K Line Problem

on what car do you conect your "project" ?
on older car when RPM is going high, the ECU let go
the comunication... ECU is too busy doing what it
does.
I saw this when VAG1552 is conected.... it lose
contact at high RPM (but only in old cars)
regards

--- acetoel <Nik@...> wrote:
> Thanks.
> This is becuase my program (a Atmel AVR M128
> microcontroller with
> Graphic Display) halts when I accelerate the engine.
> This produces
> noise and I "see" (I have a monitor led on the K
> Line, so I see each
> byte sent and received - very quicky - but it's a
> nice way of
> wathcing the communication), that the ECU sends a
> byte 3 times with
> a large delay before disconecting. That's why I
> supposed the problem
> is noise on the K line. Also, I have tested all the
> proyect without
> the engine on, and the communication works
> perfectly.
>
> Another question. Is there any way I can get RPM in
> a faster way
> than reading a block of 4 data?
> Thanks
> Ezequiel
>
> P.D.: If anybody is interesting in sharing info, and
> schematics,
> please send me an e-mail.
>
> --- In opendiag@yahoogroups.com, "sk_888_uk"
> <sk@s...> wrote:
> > Try and a connect a 10nF 50v capacitor between the
> K-Line
> > and ground.
> >
> > sk
> >
> > http://www.skpang.co.uk
> >
> >
> > --- In opendiag@yahoogroups.com, "acetoel"
> <Nik@i...> wrote:
> > > Hello
> > >
> > > I'm getting some noise from the motor, into the
> K Line. So my
> > > program halts at any time. Specially when I
> acellerate (this
> > > generates more noise). How can I filter the K
> Line?
> > >
> > > Thanks
> > > Ezequiel
>
>

__________________________________
Do you Yahoo!?
New Yahoo! Photos - easier uploading and sharing.
http://photos.yahoo.com/

 
Received on Fri Dec 19 15:28:45 2003