Lpc2000

I know that! My question is what is the best way to do that protocol.

Gus
--- In lpc2000@yahoogroups.com, "y4krys" <krys.brukalo@a...> wrote:
> It is "always both".  It's up to your protocol to decide which 
data 
> stream is "don't care" and when.  Only the master can initiate an 
> exchange on an SPI bus.
> 
> Krys
> 
> --- In lpc2000@yahoogroups.com, "Gus" <gus_is_working@y...> wrote:
> > Hello,
> > 
> > In your opinion, what is the best way to transfer data between 2 
> LPC 
> > micros using SPI?
> > 
> > The way I have it now, one is master and other is slave. The 
slave 
> one 
> > have 1 pin called DATA_READY. When the slave needs to send data 
to 
> > master, it sets DATA_READY high.
> > 
> > Now the problem is that when the master reads data, it also 
writes 
> > data at the same time (the way SPI works) How would the slave 
know 
> > that the SPI transaction is read, write or both.
> > 
> > Thanks,
> > 
> > Gus