ptolemy.actor.lib.jjs.modules.IMUSensor

Class SerialPortReader

java.lang.Object

java.lang.Thread

ptolemy.actor.lib.jjs.modules.IMUSensor.SerialPortReader

All Implemented Interfaces:

java.lang.Runnable

public class SerialPortReader
extends java.lang.Thread

Read in bytes from the serial port connection and provide them to the ReaderM class for decoding of the unique packet format used by the IMU sensors.

Since:

Ptolemy II 11.0

Version:

$Id$, $Id$

Author:

Hunter Massey

See Also:

SerialPortController, ReaderM

Pt.AcceptedRating:

Pt.ProposedRating:

Yellow Hunter

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor and Description
SerialPortReader() Construct a serial port reader.

Method Summary

Modifier and Type	Method and Description
void	closePort() Closes the serial port connection.
int	init(int portNumber) Initialize the serial port and connect a BufferedInputStream to the serialPort.
java.lang.String	readFromPort() Takes the next single value from the buffer of Characters read from the input stream.
void	run() Run method for this class.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

SerialPortReader

public SerialPortReader()

Construct a serial port reader. Determines OS and chooses serial port name prefix accordingly.

Method Detail

init

public int init(int portNumber)

Initialize the serial port and connect a BufferedInputStream to the serialPort.

Parameters:

portNumber - The number of theport

Returns:

1 if the initialization was successfull, -1 otherwise.

run

public void run()

Run method for this class. Starts a thread that constantly reads in from serial port stream A BufferedInputStream connected to the serial port is read into a LinkedBlockingQueue.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

readFromPort

public java.lang.String readFromPort()

Takes the next single value from the buffer of Characters read from the input stream.

Returns:

the character read from serial port as a String

closePort

public void closePort()

Closes the serial port connection. Called by class that owns this object to stop serial port connection