수다닷컴

import java.io.*;
import java.util.*;
import gnu.io.*;
public class simplewrite {
static enumeration portlist;
&nbnbsp; static commportidentifier portid;
static string messagestring = hhhhhh;
static serialport serialport;
static outputstream outputstream;
public static void main(string[] args) {
portlist = commportidentifier.getportidentifiers();

while (portlist.hasmoreelements()) {
portid = (commportidentifier) portlist.nextelement();
if (portid.getporttype() == commportidentifier.port_serial) {
if (portid.getname().equals(com1)) {
// system.out.println(com1);
// if (portid.getname().equals(/dev/term/a)) {
try {
serialport = (serialport)
portid.open(simplewriteapp, 2000);
} catch (portinuseexception e) {}
try {
outputstream = serialport.getoutputstream();
} catch (ioexception e) {}
try {
serialport.setserialportparams(9600,
serialport.databits_8,
serialport.stopbits_1,
serialport.parity_none);
} catch (unsupportedcommoperationexception e) {}
try {
outputstream.write(messagestring.getbytes());
outputstream.flush();
// outputstream.close();
// serialport.close();
} catch (ioexception e) {}
}
}
}
}
}

----------------------------------------------import java.io.*;
import java.util.*;
import gnu.io.*;
public class simpleread implements runnable, serialporteventlistener {
static commportidentifier portid;
static enumeration portlist;
inputstream inputstream;
serialport serialport;
thread readthread;

public static void main(string[] args) {
portlist = commportidentifier.getportidentifiers();
while (portlist.hasmoreelements()) {
portid = (commportidentifier) portlist.nextelement();
if (portid.getporttype() == commportidentifier.port_serial) {
if (portid.getname().equals(com1)) {
// system.out.println(어이1..);
// if (portid.getname().equals(/dev/term/a)) {
simpleread reader = new simpleread();
}else{
system.out.println(어이..);
}
}
}
}
public simpleread() {
try {
serialport = (serialport) portid.open(simplereadapp, 2000);
} catch (portinuseexception e) {}
try {
inputstream = serialport.getinputstream();
} catch (ioexception e) {
e.printstacktrace();

}
try {
serialport.addeventlistener(this);
} catch (toomanylistenersexception e) {}
serialport.notifyondataavailable(true);
try {
serialport.setserialportparams(9600,
serialport.databits_8,
serialport.stopbits_1,
serialport.parity_none);
} catch (unsupportedcommoperationexception e) {}
readthread = new thread(this);
readthread.start();
}
public void run() {
try {
thread.sleep(20000);
} catch (interruptedexception e) {}
}
public void serialevent(serialportevent event) {
switch(event.geteventtype()) {
case serialportevent.btevent.bi:
case serialportevent.oe:
case serialportevent.fe:
case serialportevent.pe:
case serialportevent.cd:
case serialportevent.cts:
case serialportevent.dsr:
case serialportevent.ri:
case serialportevent.output_buffer_empty:
break;
case serialportevent.data_available:
byte[] readbuffer = new byte[20];
try {
while (inputstream.available() 0) {
int numbytes = inputstream.read(readbuffer);
}
system.out.print(new string(readbuffer));

} catch (ioexception e) {}
break;
}
}
}
java로 프린터포트를 이용해서 led를 제어 하려고 하는데..

일단 데이터를 주고 받을려고 이리저리 소스를 구해서

해봤지만 아무리해도 잘 안됩니다..

물론 저 소스를 잘못이해한건일수도있지만;;

writer에서 메세지 hhhhh 를 쓰고

read를 실행하면 저 메세지가 읽혀야 하는데 전혀 되지가 않습니다..ㅠㅠ

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