mat.i2c.master
Class MasterBusI2c

java.lang.Object
  |
  +--com.dalsemi.system.I2CPort
        |
        +--mat.i2c.master.MasterBusI2c

All Implemented Interfaces:

BusI2c

public class MasterBusI2c

extends com.dalsemi.system.I2CPort

implements BusI2c

Titre : Master Bus I2c

Description : commande du bus I2c. Singleton

Copyright : Copyright (c) 2003

Société :

Fields inherited from class com.dalsemi.system.I2CPort

clockDelay, SCLAddress, SCLMask, SDAAddress, SDAMask, slaveAddress, STRETCH0, STRETCH1, STRETCH10, STRETCH2, STRETCH3, STRETCH7, STRETCH8, STRETCH9, stretchCycles

Constructor Summary

protected

MasterBusI2c()

Method Summary

PortI2c	createPortI2cAt(int adresse)
int	doTrame(byte[] trame) Envoi d'une trame sur le bus I2c
java.util.Vector	getAllPorts()
int	getClockDelay() Vitesse du bus I2C
static MasterBusI2c	getInstance()
PortI2c	getPortI2cAt(int adresse)
static void	kill()
int	read(int adresse, byte[] barr, int off, int len) Lecture d'un composant I2c
boolean	removePortI2c(PortI2c portI2c)
void	setBusConnexion(boolean on) Connexion du bus
void	setClockDelay(int delai) Fixer la vitesse du bus I2C Les composants I2C acceptent une fréquence de l'horloge du bus I2C de 100KHz max.
void	setNumeroAcces(int num) Un identificateur du bus
int	write(int adresse, byte[] barr, int off, int len) Ecriture dans un composant I2c
int	writeRead(int adresse, byte[] wbarr, int woff, int wlen, byte[] rbarr, int roff, int rlen) Pas implémentée

Methods inherited from class com.dalsemi.system.I2CPort

getStretchCycles, read, setAddress, setClockDelay, setStretchCycles, write

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MasterBusI2c

protected MasterBusI2c()

Method Detail

getInstance

public static MasterBusI2c getInstance()

setNumeroAcces

public void setNumeroAcces(int num)

Description copied from interface: BusI2c

Un identificateur du bus

Specified by:

setNumeroAcces in interface BusI2c

Following copied from interface: mat.i2c.master.BusI2c

Parameters:

num - identificateur

setBusConnexion

public void setBusConnexion(boolean on)

Description copied from interface: BusI2c

Connexion du bus

Specified by:

setBusConnexion in interface BusI2c

Following copied from interface: mat.i2c.master.BusI2c

Parameters:

on - vrai:connecté, faux déconnecté

kill

public static void kill()

createPortI2cAt

public PortI2c createPortI2cAt(int adresse)

removePortI2c

public boolean removePortI2c(PortI2c portI2c)

getAllPorts

public java.util.Vector getAllPorts()

getPortI2cAt

public PortI2c getPortI2cAt(int adresse)

getClockDelay

public int getClockDelay()

Description copied from interface: BusI2c

Vitesse du bus I2C

Specified by:

getClockDelay in interface BusI2c

Following copied from interface: mat.i2c.master.BusI2c

Returns:

Un entier lié à la période du bus I2C (SCL)

setClockDelay

public void setClockDelay(int delai)

Description copied from interface: BusI2c

Fixer la vitesse du bus I2C Les composants I2C acceptent une fréquence de l'horloge du bus I2C de 100KHz max.

Specified by:

setClockDelay in interface BusI2c

Following copied from interface: mat.i2c.master.BusI2c

Parameters:

delai - valeur du délai

write

public int write(int adresse,
                 byte[] barr,
                 int off,
                 int len)

Description copied from interface: BusI2c

Ecriture dans un composant I2c

Specified by:

write in interface BusI2c

Following copied from interface: mat.i2c.master.BusI2c

Parameters:

adresse - I2c du composant

barr - un tableau d'octets à transmettre

off - offset

len - longueur

Returns:

O ok ou -1 si erreur

read

public int read(int adresse,
                byte[] barr,
                int off,
                int len)

Description copied from interface: BusI2c

Lecture d'un composant I2c

Specified by:

read in interface BusI2c

Following copied from interface: mat.i2c.master.BusI2c

Parameters:

adresse - I2c du composant

barr - un tableau d'octets ou seront placés les octets lus

off - offset

len - longueur

Returns:

0 OK ou -1 si erreur

writeRead

public int writeRead(int adresse,
                     byte[] wbarr,
                     int woff,
                     int wlen,
                     byte[] rbarr,
                     int roff,
                     int rlen)

Description copied from interface: BusI2c

Pas implémentée

Specified by:

writeRead in interface BusI2c

Following copied from interface: mat.i2c.master.BusI2c

Parameters:

adresseI2c - I2c du composant

wbarr - un tableau d'octets à transmettre

woff - offset

wlen - longueur

rbarr - un tableau d'octets ou seront placés les octets lus

roff - offset

rlen - longueur

Returns:

0: ok -1: erreur

doTrame

public int doTrame(byte[] trame)

Description copied from interface: BusI2c

Envoi d'une trame sur le bus I2c

Specified by:

doTrame in interface BusI2c

Following copied from interface: mat.i2c.master.BusI2c

Parameters:

trame - Le premier octet correspond à l'adresse du composant + R/W

Returns:

0 si OK, -1 si erreur