i2c_avr.c File Reference

Driver for the AVR ATMega TWI (implementation). More...

#include "cfg/cfg_i2c.h"
#include <hw/hw_cpufreq.h>
#include <cfg/log.h>
#include <cfg/debug.h>
#include <cfg/macros.h>
#include <cfg/module.h>
#include <cpu/detect.h>
#include <cpu/irq.h>
#include <drv/timer.h>
#include <drv/i2c.h>
#include <cpu/power.h>
#include <compat/twi.h>

Go to the source code of this file.

Functions
static bool	i2c_builtin_start (void)
	Send START condition on the bus.
bool	i2c_builtin_start_w (uint8_t id)
	Send START condition and select slave for write.
bool	i2c_builtin_start_r (uint8_t id)
	Send START condition and select slave for read.
void	i2c_builtin_stop (void)
	Send STOP condition.
bool	i2c_builtin_put (const uint8_t data)
	Put a single byte in master transmitter mode to the selected slave device through the TWI bus.
int	i2c_builtin_get (bool ack)
	Get 1 byte from slave in master transmitter mode to the selected slave device through the TWI bus.
bool	i2c_hw_start (void)
	Send START condition on the bus.
void	i2c_hw_stop (void)
	Send STOP condition.
void	i2c_hw_init (I2c *i2c, int dev, uint32_t clock)
	Initialize I2C module.

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Detailed Description

Driver for the AVR ATMega TWI (implementation).

Author:

Stefano Fedrigo <aleph@develer.com>

Bernie Innocenti <bernie@codewiz.org>

Daniele Basile <asterix@develer.com>

Definition in file i2c_avr.c.

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Function Documentation

static bool i2c_builtin_start

(

void

)

[static]

Send START condition on the bus.

Returns:

true on success, false otherwise.

Definition at line 73 of file i2c_avr.c.