Hello Colin,

Have a look at:

http://www.epanorama.net/links/serialbus.html

Basically, SPI is a 4-wire link developed by Motorola. I think it's one
of the older interfaces. I2C (I catch myself saying "I two see") is a
2-wire link developed by Philips.

Hope this helps,

Tim Hamel

Colin Constant wrote:
>
> Can some kind soul please point me to something online that explains I2C vs
> SPI?
>
> LIN and CAN would be great, too, but I don't want to push my luck. :-)
>
> I feel like I've been going around and around at microchip.com.
>
> Thanks,
> Colin
>
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