twi.h File Reference

#include <stdint.h>

Include dependency graph for twi.h:

Go to the source code of this file.

Macros
#define	I2C_OK   0
#define	I2C_SCL_HELD_LOW   1
#define	I2C_SCL_HELD_LOW_AFTER_READ   2
#define	I2C_SDA_HELD_LOW   3
#define	I2C_SDA_HELD_LOW_AFTER_INIT   4

Functions
void	twi_init (unsigned char sda, unsigned char scl)
void	twi_stop (void)
void	twi_setClock (unsigned int freq)
void	twi_setClockStretchLimit (uint32_t limit)
uint8_t	twi_writeTo (unsigned char address, unsigned char *buf, unsigned int len, unsigned char sendStop)
uint8_t	twi_readFrom (unsigned char address, unsigned char *buf, unsigned int len, unsigned char sendStop)
uint8_t	twi_status ()

Macro Definition Documentation

I2C_OK

#define I2C_OK   0

I2C_SCL_HELD_LOW

#define I2C_SCL_HELD_LOW   1

I2C_SCL_HELD_LOW_AFTER_READ

#define I2C_SCL_HELD_LOW_AFTER_READ   2

I2C_SDA_HELD_LOW

#define I2C_SDA_HELD_LOW   3

I2C_SDA_HELD_LOW_AFTER_INIT

#define I2C_SDA_HELD_LOW_AFTER_INIT   4

Function Documentation

twi_init()

void twi_init	(	unsigned char	sda,
		unsigned char	scl
	)

twi_readFrom()

uint8_t twi_readFrom	(	unsigned char	address,
		unsigned char *	buf,
		unsigned int	len,
		unsigned char	sendStop
	)

twi_setClock()

void twi_setClock

(

unsigned int

freq

)

twi_setClockStretchLimit()

void twi_setClockStretchLimit

(

uint32_t

limit

)

twi_status()

uint8_t twi_status

(

)

twi_stop()

void twi_stop

(

void

)

twi_writeTo()

uint8_t twi_writeTo	(	unsigned char	address,
		unsigned char *	buf,
		unsigned int	len,
		unsigned char	sendStop
	)