SPI Peripheral Driver (AVR8) More...

#include "../../../Common/Common.h"

Macros
SPI Prescaler Configuration Masks
#define	SPI_SPEED_FCPU_DIV_2 SPI_USE_DOUBLESPEED

#define	SPI_SPEED_FCPU_DIV_4 0

#define	SPI_SPEED_FCPU_DIV_8 (SPI_USE_DOUBLESPEED \| (1 << SPR0))

#define	SPI_SPEED_FCPU_DIV_16 (1 << SPR0)

#define	SPI_SPEED_FCPU_DIV_32 (SPI_USE_DOUBLESPEED \| (1 << SPR1))

#define	SPI_SPEED_FCPU_DIV_64 (SPI_USE_DOUBLESPEED \| (1 << SPR1) \| (1 << SPR0))

#define	SPI_SPEED_FCPU_DIV_128 ((1 << SPR1) \| (1 << SPR0))

SPI SCK Polarity Configuration Masks
#define	SPI_SCK_LEAD_RISING (0 << CPOL)

#define	SPI_SCK_LEAD_FALLING (1 << CPOL)

SPI Sample Edge Configuration Masks
#define	SPI_SAMPLE_LEADING (0 << CPHA)

#define	SPI_SAMPLE_TRAILING (1 << CPHA)

SPI Data Ordering Configuration Masks
#define	SPI_ORDER_MSB_FIRST (0 << DORD)

#define	SPI_ORDER_LSB_FIRST (1 << DORD)

SPI Mode Configuration Masks
#define	SPI_MODE_SLAVE (0 << MSTR)

#define	SPI_MODE_MASTER (1 << MSTR)

Functions
static void	SPI_Disable (void)

static uint8_t	SPI_GetCurrentMode (void) ATTR_ALWAYS_INLINE

static void	SPI_Init (const uint8_t SPIOptions)

static uint8_t	SPI_ReceiveByte (void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT

static void	SPI_SendByte (const uint8_t Byte) ATTR_ALWAYS_INLINE

static uint8_t	SPI_TransferByte (const uint8_t Byte) ATTR_ALWAYS_INLINE

Detailed Description

On-chip SPI driver for the 8-bit AVR microcontrollers.

Note: This file should not be included directly. It is automatically included as needed by the SPI driver dispatch header located in LUFA/Drivers/Peripheral/SPI.h.

Macros