#include <stdbool.h>Defines | |
| #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)) |
Functions | |
| static void | SPI_Init (const uint8_t PrescalerMask, const bool Master) |
| static uint8_t | SPI_SendByte (const uint8_t Byte) |
| #define SPI_SPEED_FCPU_DIV_128 ((1 << SPR1) | (1 < SPR0)) |
SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 128.
| #define SPI_SPEED_FCPU_DIV_16 (1 << SPR0) |
SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 16.
| #define SPI_SPEED_FCPU_DIV_2 SPI_USE_DOUBLESPEED |
SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 2.
| #define SPI_SPEED_FCPU_DIV_32 (SPI_USE_DOUBLESPEED | (1 << SPR1)) |
SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 32.
| #define SPI_SPEED_FCPU_DIV_4 0 |
SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 4.
| #define SPI_SPEED_FCPU_DIV_64 (SPI_USE_DOUBLESPEED | (1 << SPR1) | (1 < SPR0)) |
SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 64.
| #define SPI_SPEED_FCPU_DIV_8 (SPI_USE_DOUBLESPEED | (1 << SPR0)) |
SPI prescaler mask for SPI_Init(). Divides the system clock by a factor of 8.
| static void SPI_Init | ( | const uint8_t | PrescalerMask, | |
| const bool | Master | |||
| ) | [inline, static] |
Initializes the SPI subsystem, ready for transfers. Must be called before calling any other SPI routines.
| PrescalerMask | Prescaler mask to set the SPI clock speed | |
| Master | If true, sets the SPI system to use master mode, slave if false |
| static uint8_t SPI_SendByte | ( | const uint8_t | Byte | ) | [inline, static] |
Sends a byte through the SPI interface, blocking until the transfer is complete.
| Byte | Byte to send through the SPI interface |
1.5.5