java.lang.Object
- totalcross.io.Stream
- - totalcross.io.device.PortConnector

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable
```
public class PortConnector
extends Stream
```
PortConnector accesses the device ports.
This works on the devices and on JDK (in this case, it uses javax.comm, which must be installed separately)
When a serial port is created, an attempt is made to open the port. If the open attempt is successful, the port will remain open until close() is called. If close() is never called, the port will be closed when the object is garbage collected.
Here is an example showing data being written and read from a serial port:
```
 PortConnector port = new PortConnector(0, 9600);
 DataStream ds = new DataStream(port);
 ds.writeCString("Hello...\r\n");
 port.close();
 
```
On JDK, you can define a file called serial.properties with the number and ports to be used:
DEFAULT=a
IRCOMM=b
SIR=c
USB=d
If the file is not found, it will use COM1, COM2, COM3, and COM4, respectively.

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`BLUETOOTH`	Bluetooth: open the built-in Bluetooth discovery dialog, then establish a Serial Port Profile (just serial emulation across Bluetooth, using the RFComm BT layer) virtual serial port connection.
`static int`	`DEFAULT`	Default Port (cradle)
`static int`	`IRCOMM`	IrCOMM Port (Serial Connection on top of IrDA Stack)
`static int`	`PARITY_EVEN`	Used in the constructor to define the parity
`static int`	`PARITY_NONE`	Used in the constructor to define the parity
`static int`	`PARITY_ODD`	Used in the constructor to define the parity
`int`	`readTimeout`	Defines the read timeout, in milliseconds.
`static int`	`readTries`	Set this to a value that will be used to keep trying to read further while something is available.
`static int`	`SIR`	SIR Port (Physical Layer of IrDA Stack).
`boolean`	`stopWriteCheckOnTimeout`	Set to false to not let the timeout error stop the write check loop.
`static int`	`USB`	USB Endpoint 2 Port
`int`	`writeTimeout`	Defines the write timeout, in milliseconds.

Fields inherited from class totalcross.io.Stream
skipBuffer

Constructor Summary

Constructors
Constructor	Description
`PortConnector(int number, int baudRate)`	Open a port with settings of 8 bits, no parity and 1 stop bit.
`PortConnector(int number, int baudRate, int bits, boolean parity, int stopBits)`	Opens a port.
`PortConnector(int number, int baudRate, int bits, int parity, int stopBits)`	Opens a port.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Closes the port.
`protected void`	`finalize()`
`int`	`readBytes(byte[] buf, int start, int count)`	Reads bytes from the stream.
`int`	`readCheck()`	Returns the number of bytes currently available to be read from the port's queue.
`void`	`setFlowControl(boolean on)`	Turns RTS/CTS flow control (hardware flow control) on or off.
`int`	`writeBytes(byte[] buf, int start, int count)`	Writes to the port.

Methods inherited from class totalcross.io.Stream
asInputStream, asOutputStream, asStream, asStream, skipBytes, wrapInputStream, wrapInputStreamToStream, write, writeBytes, writeBytes, writeBytes

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - writeTimeout
```
public int writeTimeout
```
    Defines the write timeout, in milliseconds. The default is 6 seconds.
  - readTimeout
```
public int readTimeout
```
    Defines the read timeout, in milliseconds. The default is 6 seconds.
  - stopWriteCheckOnTimeout
```
public boolean stopWriteCheckOnTimeout
```
    Set to false to not let the timeout error stop the write check loop.
  - DEFAULT
```
public static final int DEFAULT
```
    Default Port (cradle)
    
    See Also:
    
    Constant Field Values
  - IRCOMM
```
public static final int IRCOMM
```
    IrCOMM Port (Serial Connection on top of IrDA Stack)
    
    See Also:
    
    Constant Field Values
  - SIR
```
public static final int SIR
```
    SIR Port (Physical Layer of IrDA Stack). Important! In order to access the SIR port on the Pocket PCs the following has to be UNCHECKED: Settings/Connections/Beam/Receive all incoming beams and select discoverable mode. Note that Palm OS OMAP-based devices do NOT support SIR (aka raw IR); see this: http://www.alanjmcf.me.uk/comms/infrared/IrDA%20FAQ.html and http://news.palmos.com/read/messages?id=146145#146145. Note also that there's no handshaking support on SIR, and that not all devices work with it. Use IRCOMM instead when possible.
    
    See Also:
    
    Constant Field Values
  - USB
```
public static final int USB
```
    USB Endpoint 2 Port
    
    See Also:
    
    Constant Field Values
  - BLUETOOTH
```
public static final int BLUETOOTH
```
    Bluetooth: open the built-in Bluetooth discovery dialog, then establish a Serial Port Profile (just serial emulation across Bluetooth, using the RFComm BT layer) virtual serial port connection. Note: on WinCE, this maps to the Serial (port 0). You must explicitly map your BlueTooth outside the program.
    
    See Also:
    
    Constant Field Values
  - PARITY_NONE
```
public static final int PARITY_NONE
```
    Used in the constructor to define the parity
    
    See Also:
    
    Constant Field Values
  - PARITY_EVEN
```
public static final int PARITY_EVEN
```
    Used in the constructor to define the parity
    
    See Also:
    
    Constant Field Values
  - PARITY_ODD
```
public static final int PARITY_ODD
```
    Used in the constructor to define the parity
    
    See Also:
    
    Constant Field Values
  - readTries
```
public static int readTries
```
    Set this to a value that will be used to keep trying to read further while something is available. If a series of bytes is returned in very few steps, this will make the read stop after readTries has reached zero.
    
    Since:
    
    SuperWaba 5.72
- Constructor Detail
  - PortConnector
```
public PortConnector(int number,
                     int baudRate,
                     int bits,
                     boolean parity,
                     int stopBits)
              throws IllegalArgumentIOException,
                     IOException
```
    Opens a port.
    
    Parameters:
    
    number - port number. In Windows, this is the number of the COM port.
    
    baudRate - baud rate
    
    bits - bits per char [5 to 8]
    
    parity - true for even parity, false for no parity
    
    stopBits - number of stop bits
    
    Throws:
    
    IllegalArgumentIOException
    
    IOException
    
    See Also:
    
    setFlowControl(boolean), PortConnector(int, int, int, int, int)
  - PortConnector
```
public PortConnector(int number,
                     int baudRate,
                     int bits,
                     int parity,
                     int stopBits)
              throws IllegalArgumentIOException,
                     IOException
```
    Opens a port. The number passed is the number of the port for devices with multiple ports. Port number 0 defines the "default port" of a given type. For Windows CE and Palm OS devices, you should pass 0 as the port number to access the device's single serial or usb port.
    On Windows devices, port numbers map to COM port numbers. For example, serial port 2 maps to "COM2:".
    Here is an example showing how to open the serial port of a Palm OS device at 9600 baud with settings of 8 bits, no partity and one stop bit (8/N/1):
    PortConnector port = new PortConnector(0, 9600, 8, false, 1);
    Here is an example of opening serial port COM2: on a Windows device:
    PortConnector port = new PortConnector(2, 57600, 8, false, 1);
    No serial XON/XOFF flow control (commonly called software flow control) is used and RTS/CTS flow control (commonly called hardware flow control) is turn on by default on all platforms but Windows CE. The parity setting must be one of the constants PARITY_NONE, PARITY_EVEN, PARITY_ODD. For Palm OS, PARITY_ODD turns on XON/XOFF mode.
    Parameters:
    
    number - port number. In Windows, this is the number of the COM port. On Windows and Palm OS, you can pass a 4-letter that indicates the connection that will be used. For example, on Palm OS you could use Convert.chars2int("rfcm") or in Windows CE use Convert.chars2int("COM4").
    
    baudRate - baud rate
    
    bits - bits per char [5 to 8]
    
    parity - of the constants PARITY_NONE, PARITY_EVEN, PARITY_ODD. For Palm OS, PARITY_ODD turns on XonXoff mode.
    
    stopBits - number of stop bits
    
    Throws:
    
    IllegalArgumentIOException
    
    IOException
    
    Since:
    
    SuperWaba 4.5
    
    See Also:
    
    setFlowControl(boolean)
  - PortConnector
```
public PortConnector(int number,
                     int baudRate)
              throws IllegalArgumentIOException,
                     IOException
```
    Open a port with settings of 8 bits, no parity and 1 stop bit. These are the most commonly used port settings.
    
    Parameters:
    
    number - port number. On Windows, this is the number of the COM port.
    
    baudRate - baud rate
    
    Throws:
    
    IllegalArgumentIOException
    
    IOException
    
    See Also:
    
    PortConnector(int, int, int, int, int)
- Method Detail
  - close
```
public void close()
           throws IOException
```
    Closes the port.
    
    Specified by:
    
    close in interface java.lang.AutoCloseable
    
    Specified by:
    
    close in interface java.io.Closeable
    
    Throws:
    
    IOException - If an I/O error occurs.
  - setFlowControl
```
public final void setFlowControl(boolean on)
                          throws IOException
```
    Turns RTS/CTS flow control (hardware flow control) on or off.
    
    Parameters:
    
    on - pass true to set flow control on and false to set it off
    
    Throws:
    
    IOException
  - readBytes
```
public int readBytes(byte[] buf,
                     int start,
                     int count)
              throws IOException
```
    Description copied from class: Stream
    
    Reads bytes from the stream. Returns the number of bytes actually read or -1 if the end of the stream was reached. (if applicable to the stream)
    
    Specified by:
    
    readBytes in class Stream
    
    Parameters:
    
    buf - the byte array to read data into
    
    start - the start position in the array
    
    count - the number of bytes to read
    
    Throws:
    
    IOException
  - readCheck
```
public final int readCheck()
                    throws IOException
```
    Returns the number of bytes currently available to be read from the port's queue.
    
    Throws:
    
    IOException
  - writeBytes
```
public int writeBytes(byte[] buf,
                      int start,
                      int count)
               throws IOException
```
    Writes to the port. Returns the number of bytes written or throws an IOException if an error prevented the write operation from occurring. If data can't be written to the port and flow control is on, the write operation will time out and fail after approximately 2 seconds.
    
    Specified by:
    
    writeBytes in class Stream
    
    Parameters:
    
    buf - the byte array to write data from
    
    start - the start position in the byte array
    
    count - the number of bytes to write
    
    Returns:
    
    the number of bytes actually written
    
    Throws:
    
    IOException
  - finalize
```
protected void finalize()
```
    Overrides:
    
    finalize in class java.lang.Object

Class PortConnector

Field Summary

Fields inherited from class totalcross.io.Stream

Constructor Summary

Method Summary

Methods inherited from class totalcross.io.Stream

Methods inherited from class java.lang.Object

Field Detail

writeTimeout

readTimeout

stopWriteCheckOnTimeout

DEFAULT

IRCOMM

SIR

USB

BLUETOOTH

PARITY_NONE

PARITY_EVEN

PARITY_ODD

readTries

Constructor Detail

PortConnector

PortConnector

PortConnector

Method Detail

close

setFlowControl

readBytes

readCheck

writeBytes

finalize