/** Set the RTS line */
public void setRTS(boolean state) {
try {
port.setRTS(state);
} catch (SerialPortException e) {
throw new RuntimeException("Error setting the RTS line: " + e.getExceptionType());
}
}
public boolean getDSR() {
try {
return port.isDSR();
} catch (SerialPortException e) {
throw new RuntimeException("Error reading the DSR line: " + e.getExceptionType());
}
}
/**
* @generate Serial_write.xml
* <h3>Advanced</h3>
* Write a String to the output. Note that this doesn't account for Unicode (two bytes per
* char), nor will it send UTF8 characters.. It assumes that you mean to send a byte buffer
* (most often the case for networking and serial i/o) and will only use the bottom 8 bits of
* each char in the string. (Meaning that internally it uses String.getBytes)
* <p>If you want to move Unicode data, you can first convert the String to a byte stream in
* the representation of your choice (i.e. UTF8 or two-byte Unicode data), and send it as a
* byte array.
* @webref serial:serial
* @usage web_application
* @param src data to write
*/
public void write(String src) {
try {
port.writeString(src);
} catch (SerialPortException e) {
throw new RuntimeException(
"Error writing to serial port " + e.getPortName() + ": " + e.getExceptionType());
}
}
/** Set the DTR line */
public void setDTR(boolean state) {
// there is no way to influence the behavior of the DTR line when opening the serial port
// this means that at least on Linux and OS X, Arduino devices are always reset
try {
port.setDTR(state);
} catch (SerialPortException e) {
throw new RuntimeException("Error setting the DTR line: " + e.getExceptionType());
}
}
/** @param src data to write */
public void write(byte[] src) {
try {
// this might block if the serial device is not yet ready (esp. tty devices under OS X)
port.writeBytes(src);
// we used to call flush() here
} catch (SerialPortException e) {
throw new RuntimeException(
"Error writing to serial port " + e.getPortName() + ": " + e.getExceptionType());
}
}
@Override
public void actionPerformed(ActionEvent e) {
if (comunication.isConnected()) {
try {
comunication.close();
} catch (IOException e1) {
view.popupErrorMessage(e1.getMessage());
e1.printStackTrace();
}
} else {
Serial.DATA_RATE[] arrDataRate = Serial.DATA_RATE.values();
try {
serial.setDataRate(arrDataRate[view.getItemDataRate()]);
} catch (SerialPortException e1) {
view.popupErrorMessage(e1.getMessage());
e1.printStackTrace();
}
try {
refreshNameSerialPort();
String namePort = view.getNameSerialPortSelected();
comunication.open(namePort);
} catch (SerialPortException e1) {
if (e1.getExceptionType().equals(SerialPortException.TYPE_NULL_NOT_PERMITTED)) {
view.popupErrorMessage("Porta seriale non selezionata");
} else if (e1.getExceptionType().equals(SerialPortException.TYPE_PORT_NOT_FOUND)) {
view.popupErrorMessage("Porta seriale " + e1.getPortName() + " non trovata");
} else if (e1.getExceptionType().equals(SerialPortException.TYPE_PORT_ALREADY_OPENED)) {
view.popupErrorMessage("Porta seriale " + e1.getPortName() + " � gi� in uso.");
} else {
view.popupErrorMessage(e1.getMessage());
e1.printStackTrace();
}
}
}
}
/**
* @generate serialEvent.xml
* @webref serial:events
* @usage web_application
* @param event the port where new data is available
*/
public void serialEvent(SerialPortEvent event) {
if (event.getEventType() == SerialPortEvent.RXCHAR) {
int toRead;
try {
while (0 < (toRead = port.getInputBufferBytesCount())) {
// this method can be called from the context of another thread
synchronized (buffer) {
// read one byte at a time if the sketch is using serialEvent
if (serialEventMethod != null) {
toRead = 1;
}
// enlarge buffer if necessary
if (buffer.length < inBuffer + toRead) {
byte temp[] = new byte[buffer.length << 1];
System.arraycopy(buffer, 0, temp, 0, inBuffer);
buffer = temp;
}
// read an array of bytes and copy it into our buffer
byte[] read = port.readBytes(toRead);
System.arraycopy(read, 0, buffer, inBuffer, read.length);
inBuffer += read.length;
}
if (serialEventMethod != null) {
if ((0 < bufferUntilSize && bufferUntilSize <= inBuffer - readOffset)
|| (0 == bufferUntilSize && bufferUntilByte == buffer[inBuffer - 1])) {
try {
// serialEvent() is invoked in the context of the current (serial) thread
// which means that serialization and atomic variables need to be used to
// guarantee reliable operation (and better not draw() etc..)
// serialAvailable() does not provide any real benefits over using
// available() and read() inside draw - but this function has no
// thread-safety issues since it's being invoked during pre in the context
// of the Processing applet
serialEventMethod.invoke(parent, this);
} catch (Exception e) {
System.err.println("Error, disabling serialEvent() for " + port.getPortName());
System.err.println(e.getLocalizedMessage());
serialEventMethod = null;
}
}
}
invokeSerialAvailable = true;
}
} catch (SerialPortException e) {
throw new RuntimeException(
"Error reading from serial port " + e.getPortName() + ": " + e.getExceptionType());
}
}
}
private Serial(String iname, int irate, char iparity, int idatabits, float istopbits)
throws SerialException {
// if (port != null) port.close();
// this.parent = parent;
// parent.attach(this);
int parity = SerialPort.PARITY_NONE;
if (iparity == 'E') parity = SerialPort.PARITY_EVEN;
if (iparity == 'O') parity = SerialPort.PARITY_ODD;
int stopbits = SerialPort.STOPBITS_1;
if (istopbits == 1.5f) stopbits = SerialPort.STOPBITS_1_5;
if (istopbits == 2) stopbits = SerialPort.STOPBITS_2;
try {
port = new SerialPort(iname);
port.openPort();
boolean res = port.setParams(irate, idatabits, stopbits, parity, true, true);
if (!res) {
System.err.println(
format(
tr("Error while setting serial port parameters: {0} {1} {2} {3}"),
irate,
iparity,
idatabits,
istopbits));
}
port.addEventListener(this);
} catch (SerialPortException e) {
if (e.getPortName().startsWith("/dev")
&& SerialPortException.TYPE_PERMISSION_DENIED.equals(e.getExceptionType())) {
throw new SerialException(
format(
tr(
"Error opening serial port ''{0}''. Try consulting the documentation at http://playground.arduino.cc/Linux/All#Permission"),
iname));
}
throw new SerialException(format(tr("Error opening serial port ''{0}''."), iname), e);
}
if (port == null) {
throw new SerialNotFoundException(
format(
tr(
"Serial port ''{0}'' not found. Did you select the right one from the Tools > Serial Port menu?"),
iname));
}
}
/**
* @param parity 'N' for none, 'E' for even, 'O' for odd, 'M' for mark, 'S' for space ('N' is the
* default)
* @param dataBits 8 is the default
* @param stopBits 1.0, 1.5, or 2.0 (1.0 is the default)
*/
public Serial(
PApplet parent, String portName, int baudRate, char parity, int dataBits, float stopBits) {
this.parent = parent;
parent.registerMethod("dispose", this);
parent.registerMethod("pre", this);
// setup parity
if (parity == 'O') {
parity = SerialPort.PARITY_ODD;
} else if (parity == 'E') {
parity = SerialPort.PARITY_EVEN;
} else if (parity == 'M') {
parity = SerialPort.PARITY_MARK;
} else if (parity == 'S') {
parity = SerialPort.PARITY_SPACE;
} else {
parity = SerialPort.PARITY_NONE;
}
// setup stop bits
int stopBitsIdx = SerialPort.STOPBITS_1;
if (stopBits == 1.5f) {
stopBitsIdx = SerialPort.STOPBITS_1_5;
} else if (stopBits == 2) {
stopBitsIdx = SerialPort.STOPBITS_2;
}
port = new SerialPort(portName);
try {
// the native open() call is not using O_NONBLOCK, so this might block for certain operations
// (see write())
port.openPort();
port.setParams(baudRate, dataBits, stopBitsIdx, parity);
// we could register more events here
port.addEventListener(this, SerialPort.MASK_RXCHAR);
} catch (SerialPortException e) {
// this used to be a RuntimeException before, so stick with it
throw new RuntimeException(
"Error opening serial port " + e.getPortName() + ": " + e.getExceptionType());
}
serialEventMethod = findCallback("serialEvent");
serialAvailableMethod = findCallback("serialAvailable");
}
