J2SDK1.5.0 (beta) - serial port support?

Hello,
das this version of the JDK support the access to the serial port (OS --> Windows)??

I mean does it support the access to the serial port, after installing the javacomm20-win32.zip ?
Or is there any other posible solution to my problem?
Does anybody know if a new (or updated) version of the javacomm20-win32.zip does exist, or if a new version of this "programm" will be released before july ?

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Porting VIs to Linux, serial port support

hello,
I have installed LabVIEW 7 Express on
Mandriva Linux
Porting VIs Sources works well
I had some VIs under Windows using the PC
Serial Port, under LabVIEW 5, using the NI serpdrv file.
Until now, unable to make run the Serial Ports
in the Linux Version of LabVIEW....................
any hints ?

Hi trallala-
Read the following KnowledgeBase articles and reply if they do not help resolve your problems.
Troubleshooting Serial Communication in Linux
How Do I Access The Serial Ports of My Linux Machine Without Admin Privileges?
What Linux Distributions do National Instruments' Drivers and Software Support?
Hope this helps!
Drew Pierce | District Manager, Central Texas | National Instruments

Serial port support

Hi, does anyone know when AIR is going to support serial port connectivity? Or is there a link that shows upcoming features for the AIR roadmap?
thanks

Have you checked the widgets demos?
Sincerely,
Michael
Sent from my iPhone
El 09/07/2009, a las 12:10, sf_dougco <[email protected]> escribió:
>
Hi, does anyone know when AIR is going to support serial port
connectivity? Or is there a link that shows upcoming features for
the AIR roadmap?
>
thanks
>

Serial port access time slows in version 6 to 7 upgrade

Hi - I am in the process of upgrading an project from LV 6 to LV
7, the serial port access works well in LV6 but after the
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the full LV7.0 development software on it, the executable runs
just like it used to under LV6.0
What am I forgetting?? The application is built into one exe that
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Thank you

Hi
I just recently finished a project in which I had to upgrade code from LV 6 to LV 7.1. After I did that the serial port actually worked but all the Fieldpoint devices that were connected to the system didn't work. The problem ultimately was the NI Fieldpoint Drivers. After I installed the newest drivers from NI everything worked perfectly. I don't know why your problem is occurring, but I wanted to reasure you that there isn't a problem with the serial ports when upgrading to LV7.1 (I don't know about LV7).BTW, I had LV6.1 development system installed on the computer, but didn't have the LV7.1 (All I had was an EXE file).
So, try installing the newest drivers. Maybe that can help.
Ami

Java enabled phones supporting serial port access

Does anybody know a Java enabled mobile phone beside the Motorola iden family that supports access to the serial port ? As far as I can see there are no such phones on the market.

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Serial Ports, is it supported on MAC & Linux ??

Hey all...
After a long process of doing an application that runs a serial port connection to a server and upload a file to it, i could'nt find the comm package that i could download for both MAC and Linux.... There is one for Windows and Solaris though... So i was wondering, is serial ports not supported by MAC and Linux. And if not, what other than the comm package can i use to have serial ports on those 2 platforms .......
Thanks

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while apple not support serial port profile?
hanson

This is a user to user support profile.
No one here would have any way of knowing the answer to that question.

Serial ports in Solaris 10

Hi all. Please help me to solve my little problem. I need to get serial ports names (com-ports) registered in my system. In Linux I use command "dmesg | grep ttyS" for that, but in Solaris dmesg output don't contains any data about ttya, ttyb etc...
And also one question. Does Solaris support USB->COM adapters, I have plugged adapters Prolific and FTDI, but they don't work.
Regards, Alexey.

user9068379 wrote:
Hi all. Please help me to solve my little problem. I need to get serial ports names (com-ports) registered in my system. In Linux I use command "dmesg | grep ttyS" for that, but in Solaris dmesg output don't contains any data about ttya, ttyb etc...
And also one question. Does Solaris support USB->COM adapters, I have plugged adapters Prolific and FTDI, but they don't work.
Regards, Alexey.Talking extremely loosely, expect to find com ports as /dev/term/a , /dev/term/b ......
You may also file the 'tip' program appropriate on solaris.
This may be sufficent for you to progress ... or it may be you need something else.
I have not done these things recently ... and ohers may guide mor eauthoratively and better.

Assistance in How to Communicate to Serial Port

Hello, I am designing an Interface to communicate with RFID Device. My problem is that I cannot seem to get the data sent to loop back and be displayed back to a textbox that I have setup. The serial port pins 2 and 3 have been connected with jumper
wire so as to allow the data to transmit and return back. I have followed the example from an online source called "Simple Serial". Yet, everything seems to work except for the data return (received). Any assistance on the matter would be greatly
appreciated. My apologies, I neglected to mention that I am using C# 5.0 in Visual Studio 2013 Ultimate.

Hi,
Your issue is out of support range of VS General Question forum which mainly discusses the usage issue of Visual Studio IDE such as
WPF & SL designer, Visual Studio Guidance Automation Toolkit, Developer Documentation and Help System
and Visual Studio Editor.
Because your issue is about Serial Port, you can consult on ,Net Compact Framework forum like this thread:
https://social.msdn.microsoft.com/Forums/en-US/59db36ee-88dc-436a-9222-bb0b7f9acbeb/serial-port-communication-using-cnet?forum=netfxcompact for better support.
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We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.

Simple Serial Port Implementation FAILURE...MSDN?

Hi everyone!
I have a serial device connected via USB (connecting into COM7). I need to be able to read and write to/from this device. I created an external C# console application for opening the connection and writing/reading. It worked for the writing but not for the
reading. So after much trial and error, I more or less outright copied the example code the MSDN documentation provides, and this still isn't working. I am not receiving anything from the device. I have tested the device using other means such as putty and
the device is writing correctly.
Has anyone else had problems? Is the library just completely useless? Does anyone know of any alternatives?
Cheers!

Hello CRASH664,
>> Has anyone else had problems? Is the library just completely useless? Does anyone know of any alternatives?
This library should be already completed since it comes from .NET 2.0. There is a similar thread which also discusses about issues about reading data from USB by using SerialPort api:
http://stackoverflow.com/questions/11217619/can-send-cant-read-net-serial-port
It shows you could subscribe to the DataReceived Event to see if it is firing at all. And there is a Community comment about setting DTR and RTS to true, if the connected device needs them it will not transmit data.
Regards.
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
Click
HERE to participate the survey.

Unable to capture data from Serial port using LVRT2010 in single core pentium 4 machine

I am using application written in Labview using windows Labview
Runtime environment 2010. Application creates a tunnel to intercept data from
Serial port.
My problem is, Currently, I am using single core Pentium
processor. When I am trying to intercept the data between COM1 and COM7 (COM 7
is a virtual port) it is not able to capture data.
When I am running Labview RT environment using dual core
processor machine it is running normally. I wonder whether it could be the compatibility issues with
single core Pentium processor.

Hi Magnetica
Are both of the machines running the same runtime engine,
drivers ect?
Have you had RT applications running on this
machine before?
Is the development computer a 64bit machine?
The processor is a supported model (See link below).
http://zone.ni.com/devzone/cda/tut/p/id/8239
Regards
Robert
National Instruments UK & Ireland

Using a serial port under j9.. How?

I am trying out j9 on an ipaq. I am trying to get javax.comm to work.
When I call CommPortIdentifier.getIdentifiers ();
I get java.lang.string.NoSuchMethodError: java/lang/String.<init>([BIII)V
It would appear that the javax.comm package was implemented using a now deprecated String method, and that IBM has chosen not to implement deprecated methods in it's j9 vm (I get the same issue trying to run swing.)
One would think that what is needed is an updated javax.comm package. However, there doesn't appear to be a javax.comm package on Sun's site, let alone an updated one. Whats going on here? Can someone give me an idea of how Sun and/or the JCP thinks about developers who want to use serial ports?
Is there a workaround? A different way of talking to a serial port? Or should I abandon j9? I should add that I got my software running just fine on nsi.com's creme vm (javax.comm and swing too) and it worked without any hassles. It even understands jar files (is there a reason why IBM insists on having a link file?). However, the reason I persevered was that a) j9 is cheaper and more importantly b) nsi.com don't seem terribly keen on actually selling their product. I have lots of references to them selling their vm in bundles of 40 ($1000) which is a bit ouchy but hey I'm not paying for it. But, you'd think the nsi.com people would actually confirm this on their site?
So.. can it be done? And why, in the world of embedded systems (my field) and now lots of phones and pdas, is so little attention given to the humble serial port? It doesn't matter how fancy the protocol is, underneath it all is a UART. grumble
-Russel

Hi Russel,
I will probably soon be in the position you are in trying to get this to work. I found the following page which offers some promise.
http://www.intrinsyc.com/support/I-Linux/405-cube/misc/smf_serial_port_access_example.htm
Mike

How do I process serial port strings as bits

In response to my commands, my instrument is sending bytes to my serial
port. In one instance, 2 bytes are received. I want to treat these 2 bytes
as a group of 16 bits.
The VISA and Compatibility Serial functions return these bytes from the
serial port to Labview clearly labelled a "string".
Everything I can find in the way of Labview functions and .vis don't want to
do bit twiddling, bit swapping, and bit dropping, with "string" data.
I thought "hex string to number" could be used here, but I can't find a way.
The 2 Bytes in question can be represented as hex, but the data are not the
ASCII codes for the hex representation of a binary number, they are the
binary number. This "hex string to number" seems to want ASCII c
odes.
You can feed a hex number typed into a "control" box wired into "hex string
to number" and you get a meaningful number. You can feed the 2 bytes from
the serial port into an "indicator" set to read in hex and you get a hex
number that is a correct representation. But that is Labview handing them
around to itself. I need to get my "hands" on them.
I can't feed those same bytes that show up as a correct hex representation
in an indicator into the "hex string to number" or anything else, so far,
and get a number that is useful for further processing.
I thought "variant to data", but I can't find enough reference material to
understand how to use it. A boolean array seems like a bit of a weird
approach, so I thought I'd ask before I looked into that.
I'm used to dealing directly with binary numbers on the processor stack, I
call them whatever I want, and turn them into anything I feel like.
I'm sure I'm staring the solution in the face, but I can't find any way to
persuade
Labview to treat this "string" data as 16 bits.
I've got the 16 bits, which is better than not having them, but I don't have
much hair left.

duh, well I finally discovered the "Unflatten from String" function. A guy
just feeds in the bytes he's collected from his serial port that Labview
thinks are a "string", and out come lovely little unsigned 16 bit numbers,
or whatever other type of number he wants to turn the bytes into. And there
are great little bit twiddlers available after that, like "swap bytes", and
you can mask out bits with the logic operators, why this is fun. There's
nothing like being a moron...... fly me to the moon...................
"David Lewis" wrote in message
news:[email protected]..
> The two bytes would come from a serial port read.vi in Labview, classed as
a
> string. For instance, D3 and 02. The output wou
ld swap the two bytes,
i.e.
> to 02 and D3, consider the two swapped bytes as 16 bits, drop the six most
> significant bits, and output the ten bits that are left as an integer
> classed by Labview as some kind of number, not a string.
>
> Your example StringToBits_Converter.vi I found on the ni.com site
> unfortunately gives an error message and refuses to open on my system
saying
> it comes from a newer version of Labview 6 than I am running. Mine says
> 6.0.1b3. Thank you very much anyway.
>
> "FightOnSCTrojan" wrote in message
> news:[email protected]..
> > In another words, you want to create a VI in which the input is 2
> > strings (i.e. AB) and the output is the converted array bits (e.g.
> > 1010101010101010)?
>
>

Java ME 8 Permission check failed when opening a serial port

I have a larger Jave ME8.1 application that was going well until I tried to add one last piece, reading and writing data from a serial port. This was left to last because it is trivial, at least in most programming languages. The is IDE NetBeans 8.0.2 running on a Windows 7 PC. The platform is a Raspberry Pi B or B+ (I have tried both) with the most current Raspbian (12/24/2014 I believe). To simplify the process I created a new app with just the open and close code and this generates the same error I am experiencing in the larger application. The program is as follows:
package javamecomapp;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.microedition.io.CommConnection;
import javax.microedition.io.Connector;
import javax.microedition.midlet.MIDlet;
* @author ****
public class JavaMEcomApp extends MIDlet {
    static int BAUD_RATE = 38400;
    static String SERIAL_DEVICE = "ttyAMA0";
    static CommConnection commConnection = null;
    static OutputStream os = null;
    static InputStream is = null;
    static String connectorString;
    private int rtnValue = -1;
    @Override
    public void startApp() {
        java.lang.System.out.println("Opening comm port.");
        try {
            rtnValue = JavaMEcomApp.openComm();
        } catch (IOException ex) {
            Logger.getLogger(JavaMEcomApp.class.getName()).log(Level.SEVERE, null, ex);
    @Override
    public void destroyApp(boolean unconditional) {
        java.lang.System.out.println("Closing comm port.");
        try {
            rtnValue = JavaMEcomApp.closeComm();
        } catch (IOException ex) {
            Logger.getLogger(JavaMEcomApp.class.getName()).log(Level.SEVERE, null, ex);
        private static int openComm()throws IOException {
            java.lang.System.out.println("Opening comm port.");
            connectorString = "comm:" + SERIAL_DEVICE + ";baudrate=" + BAUD_RATE;
            commConnection = (CommConnection)Connector.open(connectorString);
            is = commConnection.openInputStream();
            os = commConnection.openOutputStream();
        return 0;
    private static int closeComm()throws IOException {
        java.lang.System.out.println("Closing comm port.");
            is.close();
            os.close();
            commConnection.close();
        return 0;
If I comment out the JavaMEcomApp.openComm and closeComm lines it runs fine. When they are included, the following error is dumped to the Raspberry Pi terminal:
Opening comm port.
Opening comm port.
[CRITICAL] [SECURITY] iso=2:Permission check failed: javax.microedition.io.CommProtocolPermission "comm:ttyAMA0;baudrate=38400" ""
TRACE: <at java.security.AccessControlException: >, startApp threw an Exception
java.security.AccessControlException:
- com/oracle/meep/security/AccessControllerInternal.checkPermission(), bci=118
- java/security/AccessController.checkPermission(), bci=1
- com/sun/midp/io/j2me/comm/Protocol.checkForPermission(), bci=16
- com/sun/midp/io/j2me/comm/Protocol.openPrim(), bci=31
- javax/microedition/io/Connector.open(), bci=77
- javax/microedition/io/Connector.open(), bci=6
- javax/microedition/io/Connector.open(), bci=3
- javamecomapp/JavaMEcomApp.openComm(), bci=46
- javamecomapp/JavaMEcomApp.startApp(), bci=9
- javax/microedition/midlet/MIDletTunnelImpl.callStartApp(), bci=1
- com/sun/midp/midlet/MIDletPeer.startApp(), bci=5
- com/sun/midp/midlet/MIDletStateHandler.startSuite(), bci=246
- com/sun/midp/main/AbstractMIDletSuiteLoader.startSuite(), bci=38
- com/sun/midp/main/CldcMIDletSuiteLoader.startSuite(), bci=5
- com/sun/midp/main/AbstractMIDletSuiteLoader.runMIDletSuite(), bci=130
- com/sun/midp/main/AppIsolateMIDletSuiteLoader.main(), bci=26
java.security.AccessControlException:
- com/oracle/meep/security/AccessControllerInternal.checkPermission(), bci=118
- java/security/AccessController.checkPermission(), bci=1
- com/sun/midp/io/j2me/comm/Protocol.checkForPermission(), bci=16
- com/sun/midp/io/j2me/comm/Protocol.openPrim(), bci=31
- javax/microedition/io/Connector.open(), bci=77
- javax/microedition/io/Connector.open(), bci=6
- javax/microedition/io/Connector.open(), bci=3
- javamecomapp/JavaMEcomApp.openComm(), bci=46
- javamecomapp/JavaMEcomApp.startApp(), bci=9
- javax/microedition/midlet/MIDletTunnelImpl.callStartApp(), bci=1
- com/sun/midp/midlet/MIDletPeer.startApp(), bci=5
- com/sun/midp/midlet/MIDletStateHandler.startSuite(), bci=246
- com/sun/midp/main/AbstractMIDletSuiteLoader.startSuite(), bci=38
- com/sun/midp/main/CldcMIDletSuiteLoader.startSuite(), bci=5
- com/sun/midp/main/AbstractMIDletSuiteLoader.runMIDletSuite(), bci=130
- com/sun/midp/main/AppIsolateMIDletSuiteLoader.main(), bci=26
Closing comm port.
Closing comm port.
TRACE: <at java.lang.NullPointerException>, destroyApp threw an Exception
java.lang.NullPointerException
- javamecomapp/JavaMEcomApp.closeComm(), bci=11
- javamecomapp/JavaMEcomApp.destroyApp(), bci=9
- javax/microedition/midlet/MIDletTunnelImpl.callDestroyApp(), bci=2
- com/sun/midp/midlet/MIDletPeer.destroyApp(), bci=6
- com/sun/midp/midlet/MIDletStateHandler.startSuite(), bci=376
- com/sun/midp/main/AbstractMIDletSuiteLoader.startSuite(), bci=38
- com/sun/midp/main/CldcMIDletSuiteLoader.startSuite(), bci=5
- com/sun/midp/main/AbstractMIDletSuiteLoader.runMIDletSuite(), bci=130
- com/sun/midp/main/AppIsolateMIDletSuiteLoader.main(), bci=26
java.lang.NullPointerException
- javamecomapp/JavaMEcomApp.closeComm(), bci=11
- javamecomapp/JavaMEcomApp.destroyApp(), bci=9
- javax/microedition/midlet/MIDletTunnelImpl.callDestroyApp(), bci=2
- com/sun/midp/midlet/MIDletPeer.destroyApp(), bci=6
- com/sun/midp/midlet/MIDletStateHandler.startSuite(), bci=376
- com/sun/midp/main/AbstractMIDletSuiteLoader.startSuite(), bci=38
- com/sun/midp/main/CldcMIDletSuiteLoader.startSuite(), bci=5
- com/sun/midp/main/AbstractMIDletSuiteLoader.runMIDletSuite(), bci=130
com/sun/midp/main/AppIsolateMIDletSuiteLoader.main(), bci=26
I have tried this with three different serial ports, /dev/ttyAMA0 (yes I did disable the OS from using it), an arduino board /dev/ttyACM0, and a USB to RS485 adaptor /dev/ttyUSB0. All of these ports could be connected and use normally with both a C program and terminal program in the Pi. The API Permissions were set in the project properties / Application Descriptor / API Permissions to jdk.dio.DeviceMgmtPermission "/dev/ttyAMA0". This of course was changed as I tested different devices.
I found a reference suggesting adding the line "authentication.provider = com.oracle.meep.security.NullAuthenticationProvider" to the end of the jwc_properties.ini file. This had no effect. I found references that during development in eclipse and NetBeans, the app is already elevated to the top level so this should not be an issue until deployment. This does not appear to be the case.
I am out of time and need a solution quickly. Any suggestions are welcome.

Terrence,
   Thank you for responding and confirming the issues I'm having with static addressing. As far as the example above, I do have the standard LEDs working correctly, however, the example I'm referring to above is from the JavaME samples using the GPIO Port for the LEDS, according to the Device I/O Preconfigured List you referenced:
GPIO Ports
The following GPIO ports are preconfigured.
Devicel ID
Device Name
Mapped
Configuration
8
LEDS
PTB22
PTE26
PTB21
direction = 1 (Output only)
initValue = 0
GPIOPins:
controllerNumber = 1
pinNumber = 22
mode = 4 (Push-pull mode)
controllerNumber = 4
pinNumber = 26
mode = 4 (Push-pull mode)
controllerNumber = 1
pinNumber = 21
mode = 4 (Push-pull mode)
So is the assumption that using GPIOPort for accessing the GPIO port for Device ID 8 as listed in the Device I/O Preconfigured list not supported?

Write to serial port asyncronously

I am trying to write a commands to a serial port but my problem is that the operation is tedious so it is freezing up my UI. What makes it more complicated is that I must call this procedure when the form loads I want to ask if anyone can provide an alternative
way to get the same or better result I was thinking of running it asynchronously but I don't know how to?
This is the code I am calling on load
If lblConnected.Text = "" Then
MsgBox("Please connect to port.", MsgBoxStyle.OkOnly, "Validation")
Exit Sub
End If
RichTextBox1.Text = ""
Try
With SerialPort1
rcvdata = ""
.Write("AT" & vbCrLf)
Threading.Thread.Sleep(1)
.Write("AT+CMGF=1" & vbCrLf)
Threading.Thread.Sleep(1)
.Write("AT+CPMS=""SM""" & vbCrLf)
Threading.Thread.Sleep(1)
.Write("AT+CMGL=""ALL""" & vbCrLf)
Threading.Thread.Sleep(1)
.Write("AT+CNUM" & vbCrLf)
Threading.Thread.Sleep(2000)
Dim lineoftext As String
Dim arytextfile() As String
Dim myString As String
lineoftext = rcvdata.ToString
arytextfile = Split(lineoftext, "Your number is", CompareMethod.Text)
myString = "Your number is"
lineoftext = lineoftext.Substring(lineoftext.IndexOf("Your number is"), 40)
lineoftext = lineoftext.Replace("Your number is", "")
lineoftext = lineoftext.Substring(0, 13)
txtDonglePhoneNumber.Text = LTrim(lineoftext)
End With
Catch ex As Exception
MsgBox(ex.Message)
End Try
I am trying to extract the phone number from this whole routine and it works but its freezing up my UI. How can I run from another thread.
If you think it you can achieve it

Imports System.IO.Ports
Imports System.Threading
Public Class Form1
Private comport As SerialPort
Private sending As Boolean
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
sending = False
End Sub
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
comport = CreateComport(comport)
If sending = False AndAlso OpenComport(comport) = True Then
Dim t As Threading.Thread = New Threading.Thread(AddressOf SendData)
t.IsBackground = True
t.Start(comport)
End If
End Sub
Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
CloseComport(comport)
End Sub
Private Function CreateComport(ByVal port As SerialPort) As SerialPort
If port Is Nothing Then
port = New SerialPort("COM4", 9600, Parity.None, 8, StopBits.One)
End If
Return port
End Function
Private Function OpenComport(ByVal port As SerialPort) As Boolean
Try
If (Not port Is Nothing) AndAlso (port.IsOpen = False) Then
port.Open()
End If
Return True
Catch ex As Exception
MessageBox.Show(String.Format("Exception :{0}", ex.ToString()))
Return False
End Try
End Function
Private Sub CloseComport(ByVal port As SerialPort)
Try
If (sending = False) AndAlso (Not port Is Nothing) AndAlso (port.IsOpen) Then
port.Close()
MessageBox.Show("Port closed")
End If
Catch ex As Exception
MessageBox.Show(String.Format("Exception :{0}", ex.ToString()))
End Try
End Sub
Private Sub SendData(ByVal port As Object)
Dim buffer(1023) As Byte
For i As Int32 = 0 To buffer.Length - 1
buffer(i) = i Mod 256
Next
sending = True
Try
DirectCast(port, SerialPort).Write(buffer, 0, buffer.Length)
Catch ex As Exception
CloseComport(DirectCast(port, SerialPort))
MessageBox.Show(String.Format("Exception :{0}", ex.ToString()))
Finally
sending = False
End Try
End Sub
End Class
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J2SDK1.5.0 (beta) - serial port support?

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