Brendan Moran wrote:
> The problem with I2C also remains the same: most MCUs do not have the
> capability to run in high-speed (3.4Mbps) mode. PIC18F micros are
> limited to 400kbps by default. I don't know if there's a way to
> overdrive them to 3.4Mbps, but the usermanual says 400k.

It's not really the host's ability to run at that bit rate, but switching
speed of the bus and the capability of the slowest slave on the bus.  IIC is
a open collector bus with rather little noise immunity.  If you care about
speed, use SPI.


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