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face BY : Michael Rigby-Jones email (remove spam text)



Coding a bullet-proof bit bashed slave I2C or SPI is not a trivial exercise.
Unless you really need to use one of these protocols, I strongly suggest you
use async serial comms.

If you are stuck on using I2C then you will probably have to base it on an
interrupt driven state machine to ensure a small latency to the masters
clock.  The Scenix has an I2C slave virtual peripheral
(http:\\http://www.ubicom.com) and I'm fairly sure that Microchip has an app note
implementing an I2C slave for one of the low end (16C5x) devices.

Regards

Mike

> {Original Message removed}
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Subject (change) Pic <--> Pic Comms

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