e_I2C_master_module.c File Reference

Manage I2C basics. More...

#include "e_I2C_master_module.h"

Functions
void	idle_i2c (void)
	Wait until I2C Bus is Inactive.
char	e_i2c_init (void)
	Initialize the microcontroller for I2C uses.
char	e_i2c_reset (void)
	Reset the microcontroller for I2C uses.
char	e_i2c_enable (void)
	Enable special I2C interrupt.
char	e_i2c_disable (void)
	Disable special I2C interrupt.
char	e_i2c_start (void)
	Make the start bit.
char	e_i2c_restart (void)
	Make the restart bit.
char	e_i2c_stop (void)
	Make the stop bit.
char	e_i2c_ack (void)
	Make the acknowledgement bit.
char	e_i2c_nack (void)
	Make the non-acknowledgement bit.
char	e_i2c_read (char *buf)
	Read the I2C input register.
char	e_i2c_write (char byte)
	Write on the I2C output register.
void	__attribute__ ((__interrupt__, auto_psv))
Variables
char	e_i2c_mode
int	e_interrupts [3]

---

Detailed Description

Manage I2C basics.

This module manage the I2C basics functions (low level I2C functions).
They are made to perform the basics tasks like:

• initializing the I2C on the microcontroller
• sending the Start bit (e_i2c_start)
• sending the Restart bit (e_i2c_restart)
• sending the Stop bit (e_i2c_stop)
• sending the acknowledgement bit (e_i2c_ack)
• writing or receiving a byte (e_i2c_write, e_i2c_read)
• ...

Author:

Code: Davis Daidie
Doc: Jonathan Besuchet

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Function Documentation

void __attribute__

(

(__interrupt__, auto_psv)

)

char e_i2c_ack

(

void

)

Make the acknowledgement bit.

Returns:

1 to confirme the oparation and 0 for an error

char e_i2c_disable

(

void

)

Disable special I2C interrupt.

Returns:

1 to confirme the oparation and 0 for an error

char e_i2c_enable

(

void

)

Enable special I2C interrupt.

Returns:

1 to confirme the oparation and 0 for an error

char e_i2c_init

(

void

)

Initialize the microcontroller for I2C uses.

Returns:

1 to confirme the oparation and 0 for an error

char e_i2c_nack

(

void

)

Make the non-acknowledgement bit.

Returns:

1 to confirme the oparation and 0 for an error

char e_i2c_read

(

char *

buf

)

Read the I2C input register.

Parameters:

buf

A pointer to store the datas received

Returns:

1 to confirme the oparation and 0 for an error

char e_i2c_reset

(

void

)

Reset the microcontroller for I2C uses.

Returns:

1 to confirme the oparation and 0 for an error

char e_i2c_restart

(

void

)

Make the restart bit.

Returns:

1 to confirme the oparation and 0 for an error

char e_i2c_start

(

void

)

Make the start bit.

Returns:

1 to confirme the oparation and 0 for an error

char e_i2c_stop

(

void

)

Make the stop bit.

Returns:

1 to confirme the oparation and 0 for an error

char e_i2c_write

(

char

byte

)

Write on the I2C output register.

Parameters:

byte

What you want to send on I2C

Returns:

1 to confirme the oparation and 0 for an error

void idle_i2c

(

void

)

Wait until I2C Bus is Inactive.

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Variable Documentation

char e_i2c_mode

int e_interrupts[3]

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