Porting: SPI

Functions
void	begin (int busNo)
uint8_t	transfer (uint8_t tx_)
void	transfernb (char *tbuf, char *rbuf, uint32_t len)
void	transfern (char *buf, uint32_t len)

Detailed Description

Example of spi.h class declaration for SPI portability

Function Documentation

begin()

void begin

(

int

busNo

)

Start SPI

transfer()

uint8_t transfer

(

uint8_t

tx_

)

Transfer a single byte

Parameters

tx_	Byte to send

Returns

Data returned via spi

transfernb()

void transfernb	(	char *	tbuf,
		char *	rbuf,
		uint32_t	len )

Transfer a buffer of data

Parameters

tbuf	Transmit buffer
rbuf	Receive buffer
len	Length of the data

transfern()

void transfern	(	char *	buf,
		uint32_t	len )

Transfer a buffer of data without an rx buffer

Parameters

buf	Pointer to a buffer of data
len	Length of the data