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FiloFirmata is a client library for the Firmata protocol used with hardware project boards.
/*
* Copyright (c) 2011, Kustaa Nyholm / SpareTimeLabs
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* Neither the name of the Kustaa Nyholm or SpareTimeLabs nor the names of its
* contributors may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*/
package purejavacomm.testsuite;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.Random;
import purejavacomm.*;
public class PureJavaCommDemo {
public static void main(String[] args) {
try {
System.out.println("PureJavaCommDemo");
CommPortIdentifier portid = null;
Enumeration e = CommPortIdentifier.getPortIdentifiers();
while (e.hasMoreElements()) {
portid = (CommPortIdentifier) e.nextElement();
System.out.println("found " + portid.getName());
}
if (portid != null) {
System.out.println("use " + portid.getName());
SerialPort port = (SerialPort) portid.open("PureJavaCommDemo", 1000);
port.notifyOnDataAvailable(true);
port.notifyOnOutputEmpty(true);
port.setFlowControlMode(SerialPort.FLOWCONTROL_XONXOFF_IN + SerialPort.FLOWCONTROL_XONXOFF_OUT);
final OutputStream outs = port.getOutputStream();
final InputStream ins = port.getInputStream();
final boolean[] stop = { false };
port.addEventListener(new SerialPortEventListener() {
byte[] linebuf = new byte[10000];
int inp = 0;
int okcnt = 0;
int errcnt = 0;
Random rnd = new Random();
public void serialEvent(SerialPortEvent event) {
try {
if (event.getEventType() == SerialPortEvent.DATA_AVAILABLE) {
int n = ins.available();
byte[] buffer = new byte[n];
n = ins.read(buffer, 0, n);
for (int i = 0; i < n; ++i) {
byte b = buffer[i];
linebuf[inp++] = b;
if (b == '\n') {
//System.err.print("Received: " + new String(linebuf, 0, inp));
int s = 0;
int j;
for (j = 0; j < inp - 2; j++)
s += linebuf[j];
byte cb = (byte) (32 + (s & 63));
okcnt++;
if (cb != linebuf[j]) {
System.out.println("check sum failure");
errcnt++;
}
System.out.println("msg "+inp+" ok " + okcnt + " err " + errcnt);
inp = 0;
}
}
}
if (event.getEventType() == SerialPortEvent.OUTPUT_BUFFER_EMPTY) {
int n = 4+ (rnd.nextInt() & 63);
byte[] buffer = new byte[n + 2];
//System.err.print("Sending: " + new String(buffer));
int s = 0;
int i;
for (i = 0; i < n; i++) {
byte b = (byte) (32 + (rnd.nextInt() & 63));
buffer[i] = b;
s += b;
}
buffer[i++] = (byte) (32 + (s & 63));
buffer[i++] = '\n';
outs.write(buffer, 0, buffer.length);
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
while (!stop[0]) {
try {
Thread.sleep(100);
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}