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'[AVR]: SPI slave'
2002\12\18@231209 by Sean Breheny

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Hi all,

I'm looking for info on how to use the AVR's SPI hardware in slave mode.
Specifically, how do you begin a transfer? How do you tell it to "reset"
and receive bit 0 on the next clock transition? How do you determine when
it has finished receiving 8 bits? The info in the datasheet (I'm using
the AT90S8535) is geared toward master mode and it doesn't seem to
clearly state how this would work in slave mode.



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2002\12\19@182439 by Doug Hewett

You don't 'begin' a transfer.  The slave writes its first byte and waits for the interrupt.  The interrupt routine reads and then writes the next byte.

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