spi.c File Reference

SPI emulation module. More...

#include <stdbool.h>
#include <stdint.h>
#include <util/delay.h>
#include "gpio.h"
#include "spi.h"

Include dependency graph for spi.c:

Functions
void	init_spi_module (const struct spi_config *const config)
	Configures the SPI module. More...
uint16_t	spi_transceive (const uint16_t output)
	Sends and receives a word (full duplex) More...
void	spi_select (const bool select)
	Controls the chip select line. More...

Variables
static const struct spi_config *	spi_config
	Internal pointer to the SPI configuration. More...

Detailed Description

SPI emulation module.

Function Documentation

init_spi_module()

void init_spi_module

(

const struct spi_config *

config

)

Configures the SPI module.

Initializes all specified GPIO ports and the clock line

Parameters

config

the SPI configuration

spi_select()

void spi_select

(

bool

select

)

Controls the chip select line.

Parameters

select

if true, the line is pulled down

spi_transceive()

uint16_t spi_transceive

(

uint16_t

output

)

Sends and receives a word (full duplex)

Parameters

output

the output word

Returns

the received word, if any

Variable Documentation

spi_config

const struct spi_config* spi_config

static

Internal pointer to the SPI configuration.