***You can of course slow down the i2c bus speed or use an other
protocol.

I would not care about speed. I think software versions are usually
slower anyways.

Matt.

On Nov 13, 11:25 am, Joep Suijs <[email protected]> wrote:
> I think i2c software slave might be possible at 100kHz, using
> interrupt-on-change featured pins and running on 20 MHz.
> Polling could be achievable, but only with a very carefull designed program.
> So this way, you won't have an universal library.
> And as for 1k flash. That's not much and even if you can squeeze the code in
> there, there will be hardly any room left for application code.
>
> You can of course slow down the i2c bus speed or use an other protocol.
>
> Joep
>
> 2009/11/13 funlw65 <[email protected]>
>
>
>
>
>
> > it have only 1kb flash, how much processing space will remain?... but
> > I am interested :)
>
> > Vasi
> >  On Nov 13, 10:31 am, mattschinkel <[email protected]> wrote:
> > > Hey guys, I was wondering if anyone plans to create a I2C software
> > > slave, I see you have a hardware slave version.
>
> > > I would like to make a I2C software to serial software program for a
> > > little 8 pin 12f675 PIC (which costs only $1). This way I can free up
> > > 2 pins on my larger PIC by putting multiple devices on the I2C bus.
>
> > > This pic has an internal OSC so the schematic only requires GND and
> > > VCC. Then of course 2 I2C pins, and 2 serial pins
>
> > > For now, I'll just use a larger pic with hardware I2C
>
> > > Thanks,
> > > Matt.- Hide quoted text -
>
> - Show quoted text -
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