Page 422 - MDP2020-3
P. 422
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| 인천전자마이스터고등학교 ·············································································································
- Serial.java : 미사용 시리얼 포트 탐색 및 연결
import java.io.InputStream;
import java.io.OutputStream;
import gnu.io.CommPort;
import gnu.io.CommPortIdentifier;
import gnu.io.SerialPort;
public class Serial {
public Serial() {
super();
}
void connect(String portName) throws Exception {
CommPortIdentifier portIdentifier =
CommPortIdentifier.getPortIdentifier(portName);
if (portIdentifier.isCurrentlyOwned()) {
System.out.println("Error: Port is currently in use");
} else {
CommPort commPort = portIdentifier.open(this.getClass().getName(), 2000);
if (commPort instanceof SerialPort) {
SerialPort serialPort = (SerialPort) commPort;
serialPort.setSerialPortParams(9600, SerialPort.DATABITS_8,
SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE);
InputStream in = serialPort.getInputStream();
OutputStream out = serialPort.getOutputStream();
(new Thread(new SerialReader(in))).start();
(new Thread(new SerialWriter(out))).start();
} else {
System.out.println("Error: Only serial ports are handled by this
example.");
}
}
}
}