com.sun.spot.sensorboard.protocol
Class AT91_I2C

java.lang.Object
  com.sun.spot.sensorboard.protocol.AT91_I2C

All Implemented Interfaces:

II2C

public class AT91_I2C
extends Object
implements II2C

Class implementing the Inter-Integrated Circuit (I-squared-C) protocol for the AT91

Author:

Syntropy

Constructor Summary

AT91_I2C(IAT91_PIO pio, int sdaPin, int sclPin)
Constructor.

Method Summary

boolean	isIdle() Check if the connection is idle
byte	receive(boolean ack)
void	start() Generates the starting bit-sequence
void	stop() Generates the stopping bit-sequence
boolean	transmit(byte d)

Methods inherited from class java.lang.Object

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

Constructor Detail

AT91_I2C

public AT91_I2C(IAT91_PIO pio,
                int sdaPin,
                int sclPin)
         throws IOException

Constructor. Stores the POI and pins to be used.

Parameters:

pio - PIO interface

sdaPin - pin for the data signal

sclPin - pin for the clock signal

Throws:

IOException

Method Detail

start

public void start()
           throws IOException

Description copied from interface: II2C

Generates the starting bit-sequence

Specified by:

start in interface II2C

Throws:

IOException

See Also:

II2C.start()

stop

public void stop()
          throws IOException

Description copied from interface: II2C

Generates the stopping bit-sequence

Specified by:

stop in interface II2C

Throws:

IOException

See Also:

II2C.stop()

receive

public byte receive(boolean ack)
             throws IOException

Specified by:

receive in interface II2C

Parameters:

ack - indicates whether an ack is to be transmitted

Returns:

a single received byte

Throws:

IOException

See Also:

II2C.receive(boolean)

transmit

public boolean transmit(byte d)
                 throws IOException

Specified by:

transmit in interface II2C

Parameters:

d - a byte to be transmitted

Returns:

true if an ack was received from the receiving slave device

Throws:

IOException

See Also:

II2C.transmit(byte)

isIdle

public boolean isIdle()
               throws IOException

Description copied from interface: II2C

Check if the connection is idle

Specified by:

isIdle in interface II2C

Returns:

true if idle

Throws:

IOException