36 #ifndef USART_SPI_H_INCLUDED 37 #define USART_SPI_H_INCLUDED 42 # include "xmega_usart_spi/usart_spi.h" 44 # include "megarf_usart_spi/usart_spi.h" 46 # include "uc3_usart_spi/usart_spi.h" 50 # error Unsupported chip type Atmel part identification macros.
SAM USART in SPI mode driver functions.