rxtx

RXTX serial connection - issue with blocking read()

回眸只為那壹抹淺笑 提交于 2019-11-30 16:08:25
I am trying to use the RXTX library for blocking serial communication on Windows (XP and 7). I have tested the connection with Hyperterminal in both ends, and it works flawlessly. I set up the connection with the following code: (exception handling and defensive checks omitted for clarity) private InputStream inStream; private OutputStream outStream; private BufferedReader inReader; private PrintWriter outWriter; private SerialPort serialPort; private final String serialPortName; public StreamComSerial(String serialPortName) { this.serialPortName = serialPortName; CommPortIdentifier

RXTX cannot list or find ports under windows 7 64 bits

半世苍凉 提交于 2019-11-30 14:21:55
Good morning, I'm having issues using/or installing rxtx on windows 7 64 bits. I worked with it previously on a x86 win XP system and had no issues. Since reinstalling to this new system for some reason rxtx is unable to locate any ports whatsoever. I've tried the rxtx install, Cloud Hopper's 64 bit native library and deleting all rxtx files and starting from scratch. RXTXcomm.jar is found and I can browse the packages in NetBeans but the implementation seems to be broken or not found. This line fails when executing, every time : comPort = "COM1"; portId = CommPortIdentifier.getPortIdentifier

Dynamically loading a native library inside Java applet

前提是你 提交于 2019-11-30 07:51:32
问题 I am trying to write a Java applet that will read from a user's serial port. For this I am using the Java Comm API in conjuction with the RXTX library. I've successfully managed to read data through a local Java application but I can't seem to do the same from within an applet. The problem is that the RXTX library is a native library and I haven't found a way to load this library inside the Java applet. I've found two interesting articles (Using JNI in Applets which references to this article

RXTX serial connection - issue with blocking read()

馋奶兔 提交于 2019-11-30 00:07:32
问题 I am trying to use the RXTX library for blocking serial communication on Windows (XP and 7). I have tested the connection with Hyperterminal in both ends, and it works flawlessly. I set up the connection with the following code: (exception handling and defensive checks omitted for clarity) private InputStream inStream; private OutputStream outStream; private BufferedReader inReader; private PrintWriter outWriter; private SerialPort serialPort; private final String serialPortName; public

inputstream.available() is 0 always

感情迁移 提交于 2019-11-29 13:27:41
I have no idea of what is happening to my code. i am getting no errors and no response as well. I am writing the data to the serialport and waiting for the response by activating port.notifyOnDataAvailable(true); but this event is not triggered and inputstream.available() returns 0 always. What might be wrong ? I am using RXTX in linux. EDIT package testConn; import forms_helper.global_variables; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.PrintStream; import java.io

RxTx installation on windows java.lang.NoClassDefFoundError: gnu/io/CommPort

家住魔仙堡 提交于 2019-11-29 12:00:43
I put rxtxcomm.jar into jre/lib/ext folder, but I still get NoClassDefFoundError Isn't this folder automatically taken into the global classpath? Thanks yes it is taken automatically to classpath, but RXTXcomm uses JNI /native external libraries (.so and .dll files), you must provide the path to them when running your program in command line: java -jar yourprogram.jar -Djava.library.path="PATH_TO_EXTERNAL_LIBRARIES" for linux: suppose you unpacked the rxtx.zip to /home/user/ if you have 32bit x86 platofrm: PATH_TO_EXTERNAL_LIBRARIES = /home/user/Linux/i686-unknown-linux-gnu/ if you have 64bit

Dynamically loading a native library inside Java applet

馋奶兔 提交于 2019-11-29 05:20:18
I am trying to write a Java applet that will read from a user's serial port. For this I am using the Java Comm API in conjuction with the RXTX library . I've successfully managed to read data through a local Java application but I can't seem to do the same from within an applet. The problem is that the RXTX library is a native library and I haven't found a way to load this library inside the Java applet. I've found two interesting articles (Using JNI in Applets which references to this article ), but both are over 10 years old and I am wondering if there is a newer solution. Or if you can

java.lang.UnsatisfiedLinkError: no rxtxSerial in java.library.path thrown while loading gnu.io.RXTXCommDriver

二次信任 提交于 2019-11-29 04:16:15
Fedora using right now (package is installed Package rxtx-2.2-0.5.20100211.fc15.i686 already installed and latest version ). I have used/tried: # locate librxtxSerial /home/sun/Downloads/rxtx-2.1-7-bins-r2/Linux/i686-unknown-linux-gnu/librxtxSerial.so /home/sun/Downloads/rxtx-2.1-7-bins-r2/Linux/ia64-unkown-linux-gnu/librxtxSerial.so /home/sun/Downloads/rxtx-2.1-7-bins-r2/Linux/x86_64-unknown-linux-gnu/librxtxSerial.so /home/sun/Downloads/rxtx-2.1-7-bins-r2/Mac_OS_X/librxtxSerial.jnilib /home/sun/Downloads/rxtx-2.1-7-bins-r2/Solaris/sparc-solaris/sparc32-sun-solaris2.8/librxtxSerial-2.1-7.so

inputstream.available() is 0 always

百般思念 提交于 2019-11-28 07:23:27
问题 I have no idea of what is happening to my code. i am getting no errors and no response as well. I am writing the data to the serialport and waiting for the response by activating port.notifyOnDataAvailable(true); but this event is not triggered and inputstream.available() returns 0 always. What might be wrong ? I am using RXTX in linux. EDIT package testConn; import forms_helper.global_variables; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import

Issues receiving in RXTX

浪尽此生 提交于 2019-11-28 06:38:16
I've been using RXTX for about a year now, without too many problems. I just started a new program to interact with a new piece of hardware, so I reused the connect() method I've used on my other projects, but I have a weird problem I've never seen before. The Problem The device works fine, because when I connect with HyperTerminal, I send things and receive what I expect, and Serial Port Monitor (SPM) reflects this. However, when I run the simple HyperTerminal-clone I wrote to diagnose the problem I'm having with my main app, bytes are sent, according to SPM, but nothing is received, and my