Hi,

   Thanks. I'll see if I can use the protocol and
handshaking method to transfer in a byte in one go
instead of a bit at a time.

 --- "Alan B. Pearce" <A.B.Pearce@RL.AC.UK> wrote: >
>It's because I'm using a very simple, cheap and
> basic
> >PIC, there is no parallel, i2c or spi in it.
> >Each PIC has it own task to settle and process.
> >However, both need to communicate and use some of
> the
> >processed data in a fast manner.
> >Any idea to control and signal the control pin to
> each
> >other that data is ready and in-sync is great.
>
> Use a protocol like the TI-80 series calculators use
> to talk to each other.
> This can be used bidirectionally, and does not
> require the use of timers in
> the PIC unless you want to check for a timeout
> condition if things get
> disconnected.
>
> Look in the archives at http://www.piclist.com for
> the following message
>
> From: Wesley Moore <wmoore@CS.RMIT.EDU.AU>
> To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
> Subject:      Re: Interfacing TI calc to PIC
> Date: 26 April 2000 14:17
>
> and this will give you quite clear description of
> how the hardware interface
> works.
>
> --
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