public static void initSerial() {
Enumeration portList = CommPortIdentifier.getPortIdentifiers();
CommPortIdentifier portId = null;
boolean portFound = false;
while (portList.hasMoreElements()) {
portId = (CommPortIdentifier) portList.nextElement();
if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
if (portId.getName().equals("COM3")) {
portFound = true;
}
}
}
if (!portFound) {
System.out.println("port COM3 not found.");
return;
}
SerialPort port;
try {
port = (SerialPort) portId.open("COM3", 2000);
port.setSerialPortParams(
115200, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
comOS = new DataOutputStream(port.getOutputStream());
} catch (PortInUseException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (UnsupportedCommOperationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private void write(byte[] data) {
try {
if (m_out == null) {
m_PortIdPrinter =
CommPortIdentifier.getPortIdentifier(
m_sPortScale); // Tomamos el puerto
m_CommPortPrinter =
(SerialPort) m_PortIdPrinter.open("PORTID", 2000); // Abrimos el puerto
m_out = m_CommPortPrinter.getOutputStream(); // Tomamos el chorro de escritura
m_in = m_CommPortPrinter.getInputStream();
m_CommPortPrinter.addEventListener(this);
m_CommPortPrinter.notifyOnDataAvailable(true);
m_CommPortPrinter.setSerialPortParams(
4800,
SerialPort.DATABITS_8,
SerialPort.STOPBITS_1,
SerialPort.PARITY_ODD); // Configuramos el puerto
}
m_out.write(data);
} catch (NoSuchPortException e) {
e.printStackTrace();
} catch (PortInUseException e) {
e.printStackTrace();
} catch (UnsupportedCommOperationException e) {
e.printStackTrace();
} catch (TooManyListenersException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/*
* Open the port, wait for chip init
*/
public static int initialize(String portName) {
System.out.println("Enumerating serial ports:");
portList = CommPortIdentifier.getPortIdentifiers();
while (portList.hasMoreElements()) {
portId = (CommPortIdentifier) portList.nextElement();
if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
// DDT
System.out.println(portId.getName());
if (portId.getName().equals(portName)) {
System.out.println("Name match on port " + portName);
// Init the port, matches name we were given
try {
serialPort = (SerialPort) portId.open("tx-skeleton", 64);
} catch (PortInUseException e) {
e.printStackTrace();
System.out.println("Port in use!");
return (4);
}
try {
inputStream = serialPort.getInputStream();
outputStream = serialPort.getOutputStream();
} catch (IOException e) {
System.out.println("Unable to connect to I/O streams");
return (3);
}
try {
System.out.println("Initializing ADXL202 board...");
// 38400N81
serialPort.setSerialPortParams(
38400, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
// ADXL202 is powered via DTR line, so set it on
serialPort.setDTR(true);
try {
// Wait a couple of seconds for chip to initialize (blinking LED)
Thread.sleep(2000);
} catch (InterruptedException ie) {
}
} catch (UnsupportedCommOperationException e) {
System.out.println("Unable to configure serial port!");
return (1);
}
return (0);
}
}
}
return (1);
}
/**
* python example def transmit_to_widget(label, data, data_size): ser.write(chr(SOM_VALUE))
* ser.write(chr(label)) ser.write(chr(data_size & 0xFF)) // lsb ser.write(chr((data_size >> 8) &
* 0xFF)) // msb for j in range(data_size): ser.write(data[j]) ser.write(chr(EOM_VALUE))
*/
private void write() {
char som = 0x7E;
char eom = 0xE7;
char label = 6; // 10 serial , 6 send
Integer[] chan = getChannelData();
int data_size = chan.length;
char clsb = (char) (data_size & 0xFF);
char cmsb = (char) ((data_size >> 8) & 0xFF);
byte lsb = (byte) clsb;
byte msb = (byte) cmsb;
ArrayList<Byte> ab = new ArrayList<Byte>();
ab.add((byte) som); // start delimter
ab.add((byte) label); // label - whats happening
ab.add(lsb); // start byte
ab.add(msb); // mast
for (int i = 0; i < data_size; i++) {
ab.add(chan[i].byteValue());
}
ab.add((byte) eom);
// Byte[] messageString = new Byte[ab.size()];
// messageString = ab.toArray(messageString);
byte[] messageString = new byte[ab.size()];
for (int i = 0; i < ab.size(); i++) {
messageString[i] = ab.get(i);
}
// debug in hex
debugBytes(messageString);
boolean portFound = false;
String defaultPort = "/dev/ttyUSB0";
portList = CommPortIdentifier.getPortIdentifiers();
while (portList.hasMoreElements()) {
portId = (CommPortIdentifier) portList.nextElement();
if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
if (portId.getName().equals(defaultPort)) {
System.out.println("Found port " + defaultPort);
portFound = true;
try {
serialPort = (SerialPort) portId.open("SimpleWrite", 2000);
} catch (PortInUseException e) {
System.out.println("Port in use.");
e.printStackTrace();
continue;
}
try {
outputStream = serialPort.getOutputStream();
} catch (IOException e) {
e.printStackTrace();
}
try {
serialPort.setSerialPortParams(
57600, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
} catch (UnsupportedCommOperationException e) {
e.printStackTrace();
}
try {
serialPort.notifyOnOutputEmpty(true);
} catch (Exception e) {
System.out.println("Error setting event notification");
System.out.println(e.toString());
e.printStackTrace();
System.exit(-1);
}
System.out.println("Writing \"" + messageString + "\" to " + serialPort.getName());
try {
outputStream.write(messageString);
} catch (IOException e) {
e.printStackTrace();
}
try {
Thread.sleep(2000); // Be sure data is xferred before closing
} catch (Exception e) {
e.printStackTrace();
}
serialPort.close();
System.exit(1);
}
}
}
if (!portFound) {
System.out.println("port " + defaultPort + " not found.");
}
}
/** 通过串口向单片机写入数据 */
public boolean portWrite() {
boolean notFinished = true;
try {
// get port ID
CommPortIdentifier portId = CommPortIdentifier.getPortIdentifier(this.portName);
// open port(port holder, timeout),打开端口（串口所有者，超时等待时间:ms）
try {
this.sPort = (SerialPort) portId.open("可爱的皮卡丘", this.timeout);
// set port(BaudRate,Databits,Stopbits,Parity),设置串口（波特率，数据位，停止位，校验位）
try {
this.sPort.setSerialPortParams(
9600, SerialPort.DATABITS_8, SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);
} catch (UnsupportedCommOperationException e) {
e.printStackTrace();
}
// 写入数据
OutputStream OS = null;
try {
OS = new BufferedOutputStream(sPort.getOutputStream());
} catch (IOException e) {
e.printStackTrace();
}
// 选择操作
System.out.println("选择一下操作： 静止按1； 前进按2； 后退按3; 结束操作按4.");
int command = s.nextInt();
switch (command) {
case 1:
try {
OS.write(this.stop);
} catch (IOException e) {
e.printStackTrace();
}
break;
case 2:
try {
OS.write(this.forward);
} catch (IOException e) {
e.printStackTrace();
}
break;
case 3:
try {
OS.write(this.backward);
} catch (IOException e) {
e.printStackTrace();
}
break;
case 4:
notFinished = false;
break;
}
try {
OS.close();
} catch (IOException e) {
e.printStackTrace();
}
this.sPort.close();
} catch (PortInUseException e) {
e.printStackTrace();
}
} catch (NoSuchPortException e) {
e.printStackTrace();
}
return notFinished;
}