Re: Scan-tool with PIC

Hi,
I'm making a Scann tool with PIC for VW. I made my own interfase,
which works okey, and succesfully receive 0x55 0x01 and 0x8A from
the ECU. Then I have some problems with timming. I don't know how
much time do I have to wait after sending the ACK byte and so on.
Could you provide this info (time between bytes and so on) that you
have on the ISO documents. I can send you the diagram of my
interfase which works Ok with a PIC16F73. Thank you
Ezequiel
nik@...

--- In opendiag@y..., "kartalm2001" <kartal@s...> wrote:
> Hello!
> Have you some news about this?
> Regards!
> MiKa
>
> --- In opendiag@y..., "kt66kt66" <kt66kt66@y...> wrote:
> >
> > Hello:
> >
> > I'am working to build a little Scan-tool.
> >
> > No computer will be needed.
> >
> > Will be a little unit with PIC microcontroller and LCD display.
> >
> > I have all ISO documents and wait for the SAE book about On
board
> > diagnostic.
> >
> > In the electronic parts I don't have problem, but the theory is
> more
> > dificult for me... must read the SAE book and ISO documents, and
> make
> > some test before it work...
> >
> > .. if somebody want participate and help me with the ISO9141 BUS
> and
> > protocol used will be apreciate.... and when the proyect work
will
> be
> > free for everybody..
> >
> >
> > Regards.

 
Received on Wed Dec 04 07:48:32 2002