AVR-Chat

HOw do I connect more than one mega8 slave to one master? I know rX
and TX, but what do you mean by direction pin?  I thought serial prot
was for connecting two micros together.  What do you mean by onboard
comm?  

Thanks for the fast reply!

-Kc



--- In AVR-Chat@yahoogroups.com, MuRaT KaRaDeNiZ <karademu@y...> wrote:
> mega8 has serial port, why not use RS485 communication
> bus. Single Master, multiple slaves (32 directly
> supported, 128 possible with better driver ic's),
> minimal IO requirements (TX,RX,direction pin). One
> question however, are you doing onboard comm.?
> 
> Murat Karadeniz
> 
> 
> 
> --- ckbanner <kcbanner@i...> wrote:
> > Hello,
> > 
> > I am doing a project where I need multiple mega8
> > avrs sending sensor
> > data to another controller.  The other controller is
> > an OOPic-R.  The
> > OOPic has built in functions for SPI, i2c(twi), and
> > serial
> > communications.  What is best for a multiple slave,
> > single master
> > system?  I can make code for the OOPic, but need
> > some slave code for
> > the avrs.  I am using Codevision and the help file
> > doesn't have that
> > much information about how to use i2c or SPI in
> > slave mode.
> > 
> > Thanks,
> > Kc
> > 
> > 
> 
> 
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