Post by thread:[AVR]: SPI slave

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. Thanks! Sean -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

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. {Original Message removed}