spi.c File Reference

#include <avr/io.h>
#include <config.h>
#include <spi.h>
#include <util/delay_basic.h>
#include <util/delay.h>

Functions
void	spi_clock_up_down (void)
uint8_t	read_spi_byte (void)
	Read an 8 bit value from the SPI bus.
uint16_t	read_spi_2byte (void)
	Read a 16 bit value from the SPI bus.
void	write_spi_byte (uint8_t data)
	Transmit an 8 bit value to the SPI bus.
void	write_spi_2byte (uint16_t data)
	Transmit a 16 bit value to the SPI bus.

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Function Documentation

uint16_t read_spi_2byte

(

void

)

Read a 16 bit value from the SPI bus.

Returns:

Value from SPI bus.

uint8_t read_spi_byte

(

void

)

Read an 8 bit value from the SPI bus.

Returns:

Value from SPI bus.

void spi_clock_up_down

(

void

)

[inline]

void write_spi_2byte

(

uint16_t

data

)

Transmit a 16 bit value to the SPI bus.

Parameters:

data

Value to send via SPI bus.

void write_spi_byte

(

uint8_t

data

)

Transmit an 8 bit value to the SPI bus.

Parameters:

data

Value to send via SPI bus.