Spi

Defines
#define	DOUBLE_SCK   1
#define	SPR0_BIT   1
#define	MASTER   1
#define	SLAVE   0
#define	MOSI   _BV(PB2)
#define	MISO   _BV(PB3)
#define	SS   _BV(PB0)
#define	SCLK   _BV(PB1)
Typedefs
typedef int(*	spi_fun_recv_t )(char)
typedef void(*	spi_fun_recv_complete_t )(void)
Functions
int	spi_init (spi_fun_recv_t, spi_fun_recv_complete_t)
	Initialize SPI.
int	spi_transfer (char)
	Initialize SPI transfer.

---

Function Documentation

int spi_init	(	spi_fun_recv_t	recv_func,
		spi_fun_recv_complete_t	recv_complete_func
	)

Initialize SPI.

Parameters:

	spi_fun_recv_t	The function that handles SPI data, byte for byte.
	spi_fun_recv_complete_t	Called on a completed transmission - typically for cleaning up.

Initialize SPI.

Parameters:

	recv_func	The function to be called for each byte of data received.
	recv_complete_func	The function to be called at the end of a complete transmission.

Returns:

0 if init succesfull, an error code otherwise

int spi_transfer

(

char

bytes

)

Initialize SPI transfer.

Parameters:

char

The number of bytes to transfer.

Initialize SPI transfer.

Parameters:

bytes

The number of bytes to be transferred.