i2cmaster.h File Reference

#include <avr/io.h>

Go to the source code of this file.

Macros
#define	I2C_READ   1
#define	I2C_WRITE   0
#define	i2c_read(ack)   (ack) ? i2c_readAck() : i2c_readNak();

Functions
void	i2c_init (void)
	initialize the I2C master interace. Need to be called only once More...
void	i2c_stop (void)
	Terminates the data transfer and releases the I2C bus. More...
unsigned char	i2c_start (unsigned char addr)
	Issues a start condition and sends address and transfer direction. More...
unsigned char	i2c_rep_start (unsigned char addr)
	Issues a repeated start condition and sends address and transfer direction. More...
void	i2c_start_wait (unsigned char addr)
	Issues a start condition and sends address and transfer direction. More...
unsigned char	i2c_write (unsigned char data)
	Send one byte to I2C device. More...
unsigned char	i2c_readAck (void)
	read one byte from the I2C device, request more data from device More...
unsigned char	i2c_readNak (void)
	read one byte from the I2C device, read is followed by a stop condition More...
unsigned char	i2c_read (unsigned char ack)
	read one byte from the I2C device More...