I'm using Arduino Uno board as master and AVR32UC3A0512 as slave. I've written code for arduino using SPI.h library, and Atmel Studio 6.2 using spi.h. I'm sending data from arduino to atmel i.e from SPDR register in arduino to RDR register in Atmel, but the data is not getting recieved. Hence, I'm not able to read the data. I've successfully interfaced SPI between two arduino boards and I'm using the same Arduino Master code while interfacing it with slave EVK. I've also set the baud rate same, I'm not sure what the problem might be. Can anyone please help me out?