The Hitech sample code is for a bit bashed MASTER only.  If you search
through the PIC archives (at www.piclist.com) you'll find that several
snippets of slave code have been posted in the past, as well as a wealth of
information on potential gotchas.

Regards

Mike

> -----Original Message-----
> From: Russell Farnhill [SMTP:r.farnhill@STOR-WAVE.CO.UK]
> Sent: Tuesday, May 08, 2001 11:32 AM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: [PIC]:Pic <--> Pic Comms
>
> Sorry REPOST NO TAG....
>
>
>
> Hi,
>
>         Thanks for all your suggestions, I've got some good ideas to try
> now.
>         I think I'll try the ASYNC serial solutions.
>
>         Just one thing regarding I2C, When I mentioned I couldn't find
>         any code for the SLAVE only the MASTER this was after looking at
>         the HI-Tech example. Is this just for the MASTER or will it work
>         for both and if so how do you set the slave address. It's just
> that
>         I see that most of the functions take an address parameter but I
>         don't see the address being set anywhere in the functions/code.
>
>
> Thanks again,
>
> Russ.
>
>
>
> -----Original Message-----
> From: Antonio L Benci [mailto:Nino.Benci@SPME.MONASH.EDU.AU]
> Sent: Monday, May 07, 2001 12:48 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: Pic <--> Pic Comms
>
>
> Check out:
>
> http://www.hth.com/snap/
>
> Nino.
>
> Russell Farnhill wrote:
> >
> > Hi all,
> >
> >         I want to be able to control six F84's from a master
> >         F84. I think my options are I2C, SPI or some serial link.
> >
> >         It would also be nice if the slaves could send data back
> >         to the master as well.
> >
> >         Looking on the net I find lots of I2C routines, but they
> >         all seem to be for the master and not for the slave.
> >
> >         Does anyone know where I could get a simple set or routines
> >         in 'C' for slave and master to get me going.
> >
> >         SPI... Don't really know anything about this so I'll look
> >         at this if I can't get anywhere with I2C or Serial.
> >
> >         lastly Serial...
> >
> >         I think this is my best chance of success because I've already
> >         got one pic talking to another and probably just need to expand
> it.
> >
> >         Would this serial set-up work ?
> >
> >         Master pic Tx pin wired to all six slave Rx pins
> >         Master Pic Rx pin wired to all six slave Tx pins
> >
> >         So now master should be able to send cmd's to any slave and
> >         any slave back to master. Also I thought of using six more pins
> >         on the master as Select lines going to each slave. So slave can
> >         grab attention of master and help on bus collisions.
> >
> >         I'am a little unsure about all the slave Tx pins connected
> together
> >         on the master Rx pin, if all Tx's are low and one goes high to
> send
> >         data, will this cause a short and blow the pin ??, if so could I
> use
> >         some series resistor or something ?
> >
> >         Any suggestions, help appreciated.
> >
> > Thanks,
> >
> > Russ.
> >
>
> Nino.
> --
> ------------------------------------------------------
> | Antonio (Nino) L. Benci                            |
> | Professional Officer, Electronic Services          |
> | School of Physics & Materials Engineering          |
> | Monash University                                  |
> | email: nino.benci@spme.monash.edu                  |
> | T: 61 3 9905 3649. F: 61 3 9905 3637               |
> | M: 0414 924 833                                    |
> ------------------------------------------------------
>
>
> -----EMAIL DISCLAIMER-------------------------------------------------
> This email and any files transmitted with it are intended solely for
> the addressee(s) and may be legally privileged and/or confidential. If
> you have received this email in error please destroy it and notify the
> sender. You must not use or disclose any part of this message if you
> are not the intended recipient. Unauthorised use/disclosure may be
> unlawful. Opinions expressed may be personal to the author and may not
> necessarily reflect the opinions of Khaos Technologies or its
> affiliates. We may monitor email communication passing through our
> networks and we reserve the right to store all/part of any
> communication. We take reasonable precautions to ensure our emails are
> virus free, however, we cannot accept responsibility for any virus
> transmitted and recommend that you implement your own virus checking
> procedures.
>
> --
> http://www.piclist.com hint: The list server can filter out subtopics
> (like ads or off topics) for you. See http://www.piclist.com/#topics
>
>

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics