com.amarula.rp1600.sdk.util

Class SerialPort

java.lang.Object

com.amarula.rp1600.sdk.util.SerialPort

Direct Known Subclasses:

ICcardport, RfidPort, ScannerPort

public class SerialPort
extends java.lang.Object

Manages Low level communication with Serial ports

Field Summary

Fields

Modifier and Type	Field and Description
protected int	mFd

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SerialPort()
	SerialPort(java.lang.String serialPath, int baudrate)
	SerialPort(java.lang.String serialPath, int baudrate, boolean flowcontrol)

Method Summary

Modifier and Type	Method and Description
int	close() Close a previously opened file descriptor
protected int	open(java.lang.String serialPath, int baudrate, boolean flowcontrol)
int	read(byte[] buff, int count, int timeout) Read data from a serial port
int	read(byte[] buff, int from, int count, int timeout) Read data from a serial port
int	readln(byte[] buff, int count, int timeout) Read data from a serial port until a \n is found
int	setRTS(boolean value) Set RTS level
java.lang.String	version() Return the version string
int	write(byte[] buff, int count) Write data to a serial port

Methods inherited from class java.lang.Object

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

Field Detail

mFd

protected int mFd

Constructor Detail

SerialPort

public SerialPort(java.lang.String serialPath,
                  int baudrate)
           throws java.io.IOException

Throws:

java.io.IOException

SerialPort

public SerialPort(java.lang.String serialPath,
                  int baudrate,
                  boolean flowcontrol)
           throws java.io.IOException

Throws:

java.io.IOException

SerialPort

protected SerialPort()

Method Detail

open

protected int open(java.lang.String serialPath,
                   int baudrate,
                   boolean flowcontrol)

close

public int close()

Close a previously opened file descriptor

Returns:

0 on success

write

public int write(byte[] buff,
                 int count)

Write data to a serial port

Parameters:

buff - Buffer containing the data

count - How many bytes to write

Returns:

The number of bytes written or a negative error

read

public int read(byte[] buff,
                int count,
                int timeout)

Read data from a serial port

Parameters:

buff - Buffer containing the data

count - How many bytes to read

timeout - Read timeout in milliseconds

Returns:

The number of bytes written or a negative error

read

public int read(byte[] buff,
                int from,
                int count,
                int timeout)

Read data from a serial port

Parameters:

buff - Buffer containing the data

from - Fill buffer starting from this index

count - How many bytes to write

timeout - Read timeout in milliseconds

Returns:

The number of bytes written or a negative error

readln

public int readln(byte[] buff,
                  int count,
                  int timeout)

Read data from a serial port until a \n is found

Parameters:

buff - Buffer containing the data

count - How many bytes to write

timeout - Read timeout in milliseconds

Returns:

The number of bytes written or a negative error

setRTS

public int setRTS(boolean value)

Set RTS level

Parameters:

value - Set true to assert RTS

Returns:

The number of bytes written or a negative error

version

public java.lang.String version()

Return the version string