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LUFA Library
120219
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SPI Peripheral Driver (AVR8) More...
#include "../../../Common/Common.h"
Defines | |
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_Init (const uint8_t SPIOptions) |
static void | SPI_Disable (void) |
static uint8_t | SPI_GetCurrentMode (void) ATTR_ALWAYS_INLINE |
static uint8_t | SPI_TransferByte (const uint8_t Byte) ATTR_ALWAYS_INLINE |
static void | SPI_SendByte (const uint8_t Byte) ATTR_ALWAYS_INLINE |
static uint8_t | SPI_ReceiveByte (void) ATTR_ALWAYS_INLINE ATTR_WARN_UNUSED_RESULT |
On-chip SPI driver for the 8-bit AVR microcontrollers.