com.oracle.deviceaccess.spibus
Class SPIManager

java.lang.Object
  com.oracle.deviceaccess.spibus.SPIManager

public class SPIManager
extends java.lang.Object

Class for SPIManager management In order to communicate with specific slave. application should acquire SPISlave instance of slave that application will exchange data to/from.

 int slaveId = 3;
 SPISlave slave = SPIManager.getSlave(slaveId);
 
 
 

Application should then send/receive data by using exchange() method of SPISlave class. When data transfer is over, application should call release() method to release SPIManager slave.

 slave.exchange(sndBuf,1,rcvBuf,0);
 slave.release();
 
 

Because SPIManager protocol use separated rx/tx line. read and write operation is handled simultaneously. that's why exchange() method needs both rx buffer and tx buffer.

Method Summary

static SPISlave	getSlave(int id) get SPISlave of given id.
static SPISlave	getSlave(java.lang.String name) get SPISlave instance by given name.

Methods inherited from class java.lang.Object

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

Method Detail

getSlave

public static SPISlave getSlave(int id)
                         throws java.io.IOException,
                                PeripheralTypeNotSupportedException,
                                PeripheralNotFoundException,
                                PeripheralNotAvailableException

get SPISlave of given id.

Parameters:

id -

Returns:

SPISlave

Throws:

java.io.IOException - if the device has any problem to be used.

PeripheralTypeNotSupportedException - would be thrown if the device is not supported.

java.lang.SecurityException - Application has no permission to access peripheral.

PeripheralNotFoundException

PeripheralNotAvailableException

getSlave

public static SPISlave getSlave(java.lang.String name)
                         throws java.io.IOException,
                                PeripheralTypeNotSupportedException,
                                PeripheralNotFoundException,
                                PeripheralNotAvailableException

get SPISlave instance by given name.

Parameters:

hint - hint of slave

Returns:

SPISlave

Throws:

java.io.IOException - if the device has any problem to be used.

PeripheralTypeNotSupportedException - would be thrown if the device is not supported.

java.lang.SecurityException - Application has no permission to access peripheral.

PeripheralNotFoundException

PeripheralNotAvailableException