Setting serial port in wine
Hi.
I installed wine with pacman -S wine.
I used script from sidenet to configure it.
I would like to have access to my serial port /dev/tts/USB0 and I added in config in .wine
[serialports]
"Com1" = "/dev/tts/USB0"
but the serial port is still not recognized from my win programms.
I believe it must be related with adding a win.ini entry but I don't know what to add.
Can anyone help me?
Thank you in advance.
Hi Steven,
Depending on the serial port, there are several ways to get the memory address of your serial port. If you have a non-plug and play AT serial board, you would manually set the I/O address (via jumpers or switches in most cases). If you are using a built-in serial port,look at your motherboard specs for built-in ports. Otherwise, open the windows device manager, find the port and look at the resources page. After finding this base address, it does not correspond directly to pins. The I/O range is something like 03F8-03FF and that corresponds to the registers that are required to program a 16C550 UART in most cases, but you would need to know what you are doing. If you put in the wrong I/O address you have the potential to destroy your computer because you are writing values in the kernel which has access to the entire computer (hard drive, video driver, etc). There is NO bounds checking.
If you want to see what damage you could do, open the device manager, and click on View->Resources by type. Expand the I/O folder and you can see all of the things you don't want to accidentally write to: the PCI bus, the system timer, the DMA controller, etc. That one little VI can write to any one of those, and it won't check to see if it's safe. Be careful.
I would suggest using VISA instead. Read and write these from the VISA property nodes. It is much safer, and you don't have to manually look up the I/O range in the device manager before you get ready to use a port every time. And VISA should be easier.
I hope this helps.
Regards,
Missy S.
Calibration Engineer
National Instruments
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Go to Solution.What defines a packet?
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[SOLVED] How to set non-root access to serial ports?
I have this device which is listed as
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tty wheel sms
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2014-03-15 06:32:07.921 Cannot find a path to the configuration files at ../../../config/, Using /usr/local/etc/openzwave/ instead...
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[sudo] password for root:
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Last edited by smsware (2014-03-15 15:07:15)Hi,
I also have a similar problem. I added myself to uucp group, but I still cannot access the serial port.
[manjaro@mycomp work]$ sudo gpasswd -a manjaro uucp
[sudo] password for manjaro:
Adding user manjaro to group uucp
[manjaro@mycomp work]$ groups manjaro
lp wheel uucp network video audio storage users
[manjaro@mycomp work]$ ls -l /dev/ttyUSB0
crw-rw---- 1 root uucp 188, 0 23.06.2014 21:32 /dev/ttyUSB0
[manjaro@mycomp work]$ lpc21isp firmware.hex /dev/ttyUSB0 19200 11059
lpc21isp version 1.97
File firmware.hex:
loaded...
Start Address = 0x00004F9C
converted to binary format...
image size : 30304
Image size : 30304
Can't open COM-Port /dev/ttyUSB0 ! (Error: 13d (0xD))
But when I try as root, it works:
[manjaro@mycomp work]$ sudo lpc21isp firmware.hex /dev/ttyUSB0 19200 11059
[sudo] password for manjaro:
lpc21isp version 1.97
File firmware.hex:
loaded...
Start Address = 0x00004F9C
converted to binary format...
image size : 30304
Image size : 30304
Synchronizing (ESC to abort)..... OK
Read bootcode version: 13
Download Finished... taking 27 seconds
Now launching the brand new code
Do you have any idea what I am doing wrong?
Last edited by manjaro (2014-06-23 19:57:40) -
The "VISA Configure Serial Port" VI will only run at 9600 Baud
I have written a Serial Port monitor "RS232 RW.vi" that works for the most part. The problem is that it will not respond to alternate port configuration settings.... For instance: the default RS232 Serial port configuration is:
(COM1,9600 baud,8 data bits,1 Stop bit, None no parity)
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However, if I configure the "RS232 RW.vi" port to any other configuration, such as (COM1,2400 baud ,7 data bits,1 stop bit, Odd parity).. It will not take the expected chances and continues to operate @ 9600 baud etc.
I then changed the "RS232 RW.vi" default settings to (2400,7,1,Odd)
it still refuses to deviate from (COM1, 9600,8,1,None...)
I also went into the Win XP Device Manager on the LabView system and manually configured Com1 to 2400,7,1,Odd
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Can anyone else test drive my VI and see if they have the same problem of not being able to see new changes in the Port configuration settings ..other than (COM1, 9600,8,1,None...).... ?
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Solved!
Go to Solution.
Attachments:
RS232 RW.vi 102 KBInstead of just appreciating the comments, you need to implement them.
Having the VISA close inside the loop is definitely the problem. And Crossrulz is 100% correct about the problem being that the serial port gets reset to the default baud rate after closing the port. Here is the proof.
Note that while you may have set the port settings manually in device manager, those settings are revised by the VISA driver. If you look in Measurement and Automation Explorer under Devices and Interfaces >> Serial and Parallel, you'll see the default settings that the VISA driver uses. If you change the setting there, your program will work the way you want. But that is not the correct fix. The correct fix is to get the VISA close out of the while loop.
The port settings are established in this order.
1. By the Windows device drivers.
2. By the VISA driver as established in MAX. Since you are useing VISA, these settings will automatically override #1.
3. By the port settings you set programmatically in your LabVIEW program.
Attachments:
Example_VI.png 18 KB -
CommPortIdentifier portId;
Enumeration en = CommPortIdentifier.getPortIdentifiers();
Vector v=new Vector();
while (en.hasMoreElements())
portId = (CommPortIdentifier) en.nextElement();
if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL)
v.addElement(portId.getName());
}refer this URL
http://www.java2s.com/Code/Java/Development-Class/ReadfromaSerialportnotifyingwhendataarrives.htm
* Project :
* Class : GUIFrame.java
* Purpose :
* Date_Created :
* @ Version 1.0
import javax.swing.JFrame;
// import javax.swing.JPanel;
import javax.swing.JMenuItem;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import java.awt.event.*;
import javax.comm.*;
import java.awt.*;
import javax.swing.*;
// import javax.swing.border.TitledBorder;
public class GUIFrame extends JFrame implements ActionListener
JButton connectPort;
JComboBox combo;
//JButton baudRate;
//JComboBox baudRateCombo;
public JTextArea textArea;
JButton sendData;
public SerialConnection serialConnection;
public GUIFrame()
setLayout(null);
setTitle("First Frame");
serialConnection = new SerialConnection();
setJMenuBar(createMenuBar());
combo = new JComboBox();
combo.setBounds(50, 50, 80, 25);
listPort();
combo.addActionListener(this);
connectPort = new JButton("Connect");
connectPort.setBounds(150, 50, 100, 25);
connectPort.addActionListener(this);
sendData = new JButton("Send Data");
sendData.setBounds(150, 150, 100, 25);
sendData.addActionListener(this);
textArea = new JTextArea();
textArea.setBounds(300, 300, 400, 300);
textArea.setFont(new Font("sansserif",0,18));
add(connectPort);
add(combo);
add(sendData);
add(textArea);;
setSize(400, 300);
setVisible(true);
addWindowListener(new MainWindowAdapter());
public static void main(String arg[])
System.out.println("Hi");
new GUIFrame();
public JMenuBar createMenuBar()
JMenuBar menuBar = new JMenuBar();
JMenu fileMenu = new JMenu("File");
JMenuItem connectMenuItem = new JMenuItem("Connect");
connectMenuItem.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent ae){
try{
if(serialConnection.portName == null){
serialConnection.portName = combo.getSelectedItem().toString();
serialConnection.openConnection();
catch(Exception ex)
JMenuItem disconnectMenuItem = new JMenuItem("Disconnect");
disconnectMenuItem.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent ae){
try{
serialConnection.closeConnection();
catch(Exception ex)
fileMenu.add(connectMenuItem);
fileMenu.add(disconnectMenuItem);
menuBar.add(fileMenu);
return menuBar;
public void listPort()
CommPortIdentifier portId;
java.util.Enumeration enumeration = CommPortIdentifier.getPortIdentifiers();
while(enumeration.hasMoreElements())
portId = (CommPortIdentifier)enumeration.nextElement();
if(portId.getPortType() == CommPortIdentifier.PORT_SERIAL)
if(!portId.isCurrentlyOwned())
combo.addItem(portId.getName());
public void actionPerformed(ActionEvent ae)
if(ae.getSource() == connectPort)
System.out.println("Connect is clicked");
try
if(serialConnection.portName == null)
serialConnection.portName = combo.getSelectedItem().toString();
serialConnection.openConnection();
catch(Exception ex)
if(ae.getSource() == combo)
System.out.print("Port Name = " + combo.getSelectedItem().toString());
serialConnection.portName = combo.getSelectedItem().toString();
if(ae.getSource() == sendData)
byte b[] = new byte[5];
b[0] = (byte)0xaa;
b[1] = (byte)0xbb;
b[2] = (byte)0xcc;
b[3] = (byte)0xdd;
b[4] = (byte)0xee;
try
serialConnection.getOutputStream().write(b);
display(b);
catch(Exception ex)
public class MainWindowAdapter extends WindowAdapter
public void windowClosing(WindowEvent win)
dispose();
System.exit(0);
public void display(byte[] b)
for(int i=0; i< b.length; i++)
textArea.append(Integer.toHexString (b[i] & 0xff) + " ");
textArea.append("\n");
* Project :
* Class : SerialConnection.java
* Purpose :
* Date_Created :
* @ Version 1.0
import javax.comm.*;
import java.io.*;
public class SerialConnection
private OutputStream os;
private InputStream is;
private CommPortIdentifier portId;
public SerialPort sPort;
private boolean open;
public String portName;
SerialConnection serialConnection;
public SerialConnection()
serialConnection=this;
PortHandler portHandler = new PortHandler(serialConnection);
portHandler.init(serialConnection);
public void setOutputStream(OutputStream os)
this.os=os;
public OutputStream getOutputStream()
return os;
public void setInputStream(InputStream is)
this.is=is;
public InputStream getInputStream()
return is;
* A Method to open the SerialConnection
public void openConnection() throws Exception
try
portId = CommPortIdentifier.getPortIdentifier(portName);
catch (javax.comm.NoSuchPortException e)
System.out.println("noPort : "+e);
try
sPort = (SerialPort)portId.open("port", 3000);
open = true;
catch (javax.comm.PortInUseException e)
throw new Exception();
try
setOutputStream(sPort.getOutputStream());
setInputStream(sPort.getInputStream());
System.out.println("IO stream is opened");
catch (java.io.IOException e)
sPort.close();
*A Method to Close the port and clean up associated elements.
public void closeConnection()
// If port is already closed just return.
if (!open)
return;
if (sPort != null)
try
this.os.close();
this.is.close();
System.out.println("IO stream is opened - CloseConnection");
catch (java.io.IOException e)
System.err.println(e);
sPort.close();
System.out.println("Port is closed");
System.out.println("Flag Open - 1 : " + open );
open = false;
System.out.println("Flag Open - 2 : " + open);
* Send a one second break signal.
public void sendBreak()
sPort.sendBreak(1000);
* Reports the open status of the port.
* @return true if port is open, false if port is closed.
public boolean isOpen()
return open;
* A Method to add the event listener to the SerialPort
public void addEventListener(java.util.EventListener listener)throws Exception
System.out.println("Is not in opened state");
if(isOpen())
System.out.println("Is in opened state");
try
sPort.addEventListener((javax.comm.SerialPortEventListener)listener);
catch (java.util.TooManyListenersException e)
sPort.close();
// Set notifyOnDataAvailable to true to allow event driven input.
sPort.notifyOnDataAvailable(true);
// Set notifyOnBreakInterrup to allow event driven break handling.
sPort.notifyOnBreakInterrupt(true);
// Set receive timeout to allow breaking out of polling loop during
// input handling.
try
sPort.enableReceiveTimeout(50);
//sPort.enableReceiveTimeout(-1);
catch (javax.comm.UnsupportedCommOperationException e)
e.printStackTrace();
// Add ownership listener to allow ownership event handling.
portId.addPortOwnershipListener((javax.comm.CommPortOwnershipListener)listener);
import javax.comm.*;
public class PortHandler implements SerialPortEventListener,CommPortOwnershipListener{
public SerialConnection serialConnection;
public PortHandler(SerialConnection serialConnection)
this.serialConnection=serialConnection;
try{
serialConnection.addEventListener((SerialPortEventListener)this);
System.out.println("New Port Handler is called");
catch(Exception e)
System.out.println("Exception PortHandler(); " +e);
e.printStackTrace();
// Add this object as an event listener for the serial port.
System.out.println("PortHandler is initialised...");
public SerialConnection getConnection(){
return serialConnection;
public void setSerialConnection(SerialConnection serialConnection){
this.serialConnection = serialConnection;
public void init(SerialConnection serialConnection){
setSerialConnection(serialConnection);
public void serialEvent(SerialPortEvent e){
System.out.println("Event Initialised");
//Determine type of event.
switch (e.getEventType())
case SerialPortEvent.DATA_AVAILABLE:
try{
readData();
catch(java.io.IOException e1)
System.out.println("IO Excep "+e1.getMessage());
e1.printStackTrace();
catch(Exception e1)
System.out.println("Exception from Serial Event "+e1.getMessage());
e1.printStackTrace();
break;
case SerialPortEvent.BI:
break;
public void readData() throws java.io.IOException
byte b[]=new byte[8500];
int i=0,selectOption=0;
int newData=0;
int doubleLength=0;
int length=0;
// String mid="",strLen="";
while (newData != -1)
try
System.out.println("getInputStream().available() : " + serialConnection.getInputStream().available());
newData = serialConnection.getInputStream().read();
System.out.println("newData\t"+newData);
if (newData == -1)
System.out.println("\n End of the File\n");
break;
if(i==0){
b=(byte)newData;
System.out.print("\n MSg ID \t= " + Integer.toString(newData&0xff,16)+"\n----------------------------");
if(b[0] == (byte)0x00)
i=-1;
i++;
continue;
i++;
//System.out.println("Method is called - selectOption : " + selectOption);
continue;
if(i==1)
b[i]=(byte)newData;
System.out.print("\n Length =\t"+Integer.toString(newData&0xff,16)+"\n----------------------------");
length=newData;
if(length == 0)
i=0;
continue;
i++;
continue;
b[i]=(byte)newData;
if((b[0] == (byte)0x07) && (i == 2) || (b[0] == (byte)0xaf) && (i == 2) || (b[0] == (byte)0xec) && (i == 2)
|| (b[0] == (byte)0x5c) && (i == 2) || (b[0] == (byte)0xbe) && (i == 2) )
String string = String.valueOf((byte)b[0]);
String strLen = Integer.toString(b[2]&0xff,16) + Integer.toString(b[1]&0xff,16);
System.out.println("\n\nLength String = " + strLen + "\n\n");
java.math.BigInteger bi=new java.math.BigInteger(strLen,16);
strLen = bi.toString();
doubleLength = Integer.parseInt(strLen);
System.out.println("\nLength int = " + doubleLength + "\n");
//System.out.println("Method is called");
i++;
// Added by Siva on Jan 06
switch(selectOption)
case 0:
if(i>length+1)
try
b[i]=(byte)newData;
System.out.print("\nThe Last Byte =\t"+Integer.toString(newData&0xff,16)+"\n----------------------------");
System.out.print("\n"+i+" i Value =\t"+Integer.toString(newData&0xff,16));
System.out.println("\n----------------------- FINISHED------------------------------");
// service(b);
System.out.println("\n----------------------- After Service------------------------------");
i=-1;
i++;
continue;
}catch (Exception e)
System.out.println("Exception in calling service 0:"+e.getMessage());
e.printStackTrace();
b[i]=(byte)newData;
System.out.print("\nMSg ID \t= "+Integer.toString(newData&0xff,16)+"\n----------------------------");
break;
}catch (java.io.IOException ex) {
System.err.println("Abstarct Port handler Exception\t"+ex);
catch(Exception e1)
System.out.println("Exception from Read Data "+e1.getMessage());
e1.printStackTrace();
System.out.println("-----------------------------");
public void ownershipChange(int type){
if (type == CommPortOwnershipListener.PORT_OWNERSHIP_REQUESTED){
public void destroy()
try{
serialConnection.closeConnection();
}catch(Exception e){
System.out.println("Exception 2:"+e);
e.printStackTrace();
public void finalize(){
destroy(); -
I have problem with delay in serial port
I have problem with serial port. I have connected two computers by serial port and I need to create program in Labview for transfer strings using start bits and stop bits. My problem is that my program is working quite well ...when I press start bit it starts to concatenate strings and if i press stop bits it stops...this is the purpose of this program...but problem is that it working only with delay...and need that this program dont need delay, because it can only concatenating data depends on delay from start bit....I wana solved problem with delay...I dont want using delay process in my program, but allways when I try to delete this delay it stop works correct
here is my programOk this should be simple - if I understand you correctly.
You have the VISA session initialized with read termination character enabled. So reading the number of bytes at port is NOT the correct way to read from the port. Set the read number of bytes to something large (say 4096) and the read will return as soon as a termination character is received (or timeout).
You'll need to make sure the sending device is configured to send termination character on writes (you can set that with a VISA property node) and that you are sending the correct termination character. The default is 0x0A (newline).
Jeff -
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)?
>
> -
I am working on a wireless vital sign monitor. I have 3 signals; heart rate and temperature. I filter and amplify the signals before converting them into digital form. I then pass them via MAX232 before passing them to RS232 serial cable.
I am therefore working on a program to receive the combined signal and separate them.
I have come across serial read and write examples on ni.com but am looking for one where I can actually separate combined signals and display them separately.Reading the serial port will give you a string. How you divide the channels depends on how the data was formatted before it was sent over the serial channel.
If you are designing the instrument, as it seems from your query, then you can set up any form you wish. If your data is always floating point numeric, you could use space or tab characters to separate data words. You could use and XML format. If the instrument is provided by a vendor, contact them for the protocol.
If tabs are used between words and returns between sets of readings, the resutlant string can be interpretted by the Spreadsheet String to Array function in LV.
Things to avoid are characters often used by serial communications systems as control characters. Carraige returns are
often used as command terminators by serial protocols, but may also be used by the port.
Lynn -
How to get data from serial port to GUI textArea
From Serial Port.....
Messages from base (always 5 bytes):
0xAA, 0, 0, 0, 0xBB - IDLE Mode
0xAA, 0, 0x80, 0x80, 0xBB - Question Mode
messages from terminal (always 6 bytes):
0xAA, a, b, c, chksum, 0xBB
where chksum = a+b+c;
a = address (0-250)
the 2 MSB's of b represenet the answer:
0 0 - A
0 1 - B
1 0 - C
1 1 - D
the 6LSB's of b and 8bits of c is the time for answer, in milliseconds.
(0-16384 milliseconds)
I have VB Code for that but I want the same thing in Java ...
Can any one help me?
Here's VB Code..
VERSION 5.00
Object = "{648A5603-2C6E-101B-82B6-000000000014}#1.1#0"; "MSCOMM32.OCX"
Begin VB.Form Form1
BorderStyle = 1 'Fixed Single
Caption = "Aakar GUI"
ClientHeight = 4665
ClientLeft = 60
ClientTop = 375
ClientWidth = 6105
LinkTopic = "Form1"
MaxButton = 0 'False
MinButton = 0 'False
ScaleHeight = 311
ScaleMode = 3 'Pixel
ScaleWidth = 407
StartUpPosition = 3 'Windows Default
Begin VB.CommandButton cmdPort
Caption = "Open Port"
Height = 375
Left = 120
TabIndex = 4
Top = 600
Width = 1455
End
Begin VB.ComboBox cmbPort
Height = 315
ItemData = "Form1.frx":0000
Left = 120
List = "Form1.frx":0016
Style = 2 'Dropdown List
TabIndex = 3
Top = 120
Width = 2895
End
Begin VB.CommandButton cmdEnd
Caption = "End"
Height = 495
Left = 1560
TabIndex = 2
Top = 1320
Width = 1215
End
Begin VB.CommandButton cmdStart
Caption = "Start"
Height = 495
Left = 120
TabIndex = 1
Top = 1320
Width = 1215
End
Begin VB.TextBox txtMessage
Height = 2040
Left = 119
MultiLine = -1 'True
ScrollBars = 3 'Both
TabIndex = 0
Top = 2475
Width = 5848
End
Begin VB.Timer tmrRead
Enabled = 0 'False
Interval = 1
Left = 2040
Top = 600
End
Begin MSCommLib.MSComm MSComm1
Left = 3120
Top = 360
_ExtentX = 1164
_ExtentY = 1164
_Version = 393216
DTREnable = 0 'False
ParityReplace = 45
SThreshold = 1
End
Begin VB.Label Label5
Caption = "Result Data:"
Height = 375
Left = 120
TabIndex = 5
Top = 2115
Width = 1320
End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim PortIsOpen As Boolean
Dim Answers(4) As String
Dim RejectKeystroke As Boolean
Private Sub cmbPort_Change()
Debug.Print cmbPort.ListIndex
End Sub
Private Sub cmbPort_Validate(Cancel As Boolean)
'Cancel = True
End Sub
Private Sub cmdEnd_Click()
MSComm1.Output = "e"
txtMessage.Text = ""
End Sub
Private Sub cmdPort_Click()
On Error GoTo ErrorHandler
If cmbPort.ListIndex < 0 Then Exit Sub
If PortIsOpen Then
cmbPort.Enabled = True
MSComm1.PortOpen = False
PortIsOpen = False
cmdPort.Caption = "Open Port"
cmdStart.Enabled = False
cmdEnd.Enabled = False
Else
MSComm1.CommPort = cmbPort.ListIndex + 1
cmbPort.Enabled = False
MSComm1.PortOpen = True
PortIsOpen = True
cmdPort.Caption = "Close Port"
cmdStart.Enabled = True
cmdEnd.Enabled = True
End If
Exit Sub
ErrorHandler:
Debug.Print Err.Number
Debug.Print Err.Description
MsgBox Err.Description, vbExclamation Or vbOKOnly, "Error opening port"
cmbPort.Enabled = True
PortIsOpen = False
cmdPort.Caption = "Open Port"
cmdStart.Enabled = False
cmdEnd.Enabled = False
End Sub
Private Sub cmdStart_Click()
MSComm1.Output = "s"
txtMessage.Text = ""
End Sub
Private Sub Form_Initialize()
Dim tmp As Variant
tmp = InitCommonControls
End Sub
Private Sub Form_Load()
Answers(0) = "A"
Answers(1) = "B"
Answers(2) = "C"
Answers(3) = "D"
'MSComm1.Settings = "9600,n,8,1"
''MSComm1.Settings = "115200,n,8,1"
'MSComm1.PortOpen = True
On Error GoTo ErrorHandler1
MSComm1.CommPort = 1 ' comm port 1
MSComm1.RThreshold = 1 ' use 'on comm' event processing
MSComm1.Settings = "9600,n,8,1" ' baud, parity, data bits, stop bits
MSComm1.SThreshold = 1 ' allows us to track Tx LED
MSComm1.InputMode = comInputModeText 'comInputModeBinary ' binary mode, you can also use
' comInputModeText for text only use
PortIsOpen = False
cmbPort.ListIndex = 0
' open the port
MSComm1.PortOpen = True
cmbPort.Enabled = False
PortIsOpen = True
cmdPort.Caption = "Close Port"
cmdStart.Enabled = True
cmdEnd.Enabled = True
Exit Sub
ErrorHandler1:
Debug.Print Err.Description
PortIsOpen = False
cmbPort.Enabled = True
cmdPort.Caption = "Open Port"
cmdStart.Enabled = False
cmdEnd.Enabled = False
End Sub
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
If MSComm1.PortOpen Then MSComm1.PortOpen = False
End Sub
Private Sub lblOption_Click()
End Sub
Private Sub MSComm1_OnComm()
' Synopsis: Handle incoming characters, 'On Comm' Event
' Description: By setting MSComm1.RThreshold = 1, this event will fire for
' each character that arrives in the comm controls input buffer.
' Set MSComm1.RThreshold = 0 if you want to poll the control
' yourself, either via a TImer or within program execution loop.
' In most cases, OnComm Event processing shown here is the prefered
' method of processing incoming characters.
Dim i As Long
Dim sBuff As String ' buffer for holding incoming characters
Const MTC As String = vbCrLf ' message terminator characters (ususally vbCrLf)
Const LenMTC As Long = 2 ' number of terminator characters, must match MTC
Dim iPtr As Long ' pointer to terminatior character
' OnComm fires for multiple Events
' so get the Event ID & process
Select Case MSComm1.CommEvent
' Received RThreshold # of chars, in our case 1.
Case comEvReceive
' read all of the characters from the input buffer
' StrConv() is required when using MSComm in binary mode,
' if you set MSComm1.InputMode = comInputModeText, it's not required
'sBuff = sBuff & StrConv(MSComm1.Input, vbUnicode)
'If Len(txtMessage.Text) > 4096 Then txtMessage.Text = ""
sBuff = MSComm1.Input
Dim ch As String
Dim PacketStart As Boolean
Dim PacketLength As Integer
Dim Packet() As String
PacketStart = False
PacketLength = 0
While (Len(sBuff) > 0)
ch = Left(sBuff, 1)
If (ch = Chr(&HAA)) Then PacketStart = True
If (ch = Chr(&HBB)) Then PacketStart = False
If (ch <> Chr(&HAA) And ch <> Chr(&HBB)) Then
PacketLength = PacketLength + 1
ReDim Preserve Packet(PacketLength)
Packet(PacketLength) = ch
End If
'txtMessage.Text = txtMessage.Text + Format(Hex(Asc(ch)), " @@")
sBuff = Right(sBuff, Len(sBuff) - 1)
Wend
If (PacketLength = 3) Then
Debug.Print "Command packet recieved"
'txtMessage.Text = txtMessage.Text + vbCrLf + "Address =" + Str(Asc(Packet(1)))
'txtMessage.Text = txtMessage.Text + vbCrLf + "Address =" + Str(Asc(Packet(2)))
End If
If (PacketLength = 4) Then
Debug.Print "Response packet recieved"
txtMessage.Text = txtMessage.Text + "Address =" + Str(Asc(Packet(1))) + _
" Answer = " + Answers((Asc(Packet(2)) And &HC0) / 64) + _
" Time =" + Str((Asc(Packet(2)) And &H3F) * 256 + (Asc(Packet(3)))) + "mS" + vbCrLf
'txtMessage.Text = txtMessage.Text + vbCrLf + "Address =" + Str(Asc(Packet(1)))
'txtMessage.Text = txtMessage.Text + vbCrLf + "Option =" + Str((Asc(Packet(2)) And &HC0) / 64)
'txtMessage.Text = txtMessage.Text + vbCrLf + "Time =" + Str((Asc(Packet(2)) And &H3F) * 256 + (Asc(Packet(3))))
End If
If (PacketLength <> 4 And PacketLength <> 3) Then Debug.Print "Unknown packet of length" + Str(PacketLength) + " recieved"
txtMessage.Text = txtMessage.Text + vbCrLf
' An EOF charater was found in the input stream
Case comEvEOF
DoEvents
' There are SThreshold number of characters in the transmit buffer.
Case comEvSend
DoEvents
' A Break was received.
Case comEventBreak
DoEvents
' Framing Error
Case comEventFrame
DoEvents
' Data Lost.
Case comEventOverrun
DoEvents
' Receive buffer overflow.
Case comEventRxOver
DoEvents
' Parity Error.
Case comEventRxParity
DoEvents
' Transmit buffer full.
Case comEventTxFull
' Unexpected error retrieving DCB]
Case comEventDCB
DoEvents
End Select
End Sub
Private Sub tmrRead_Timer()
'MSComm1.Output = vbCrLf + vbCrLf
'MSComm1.Output = Chr(128)
End Sub
Private Sub txtMessage_KeyDown(KeyCode As Integer, Shift As Integer)
If Shift = 2 Or Shift = 4 Then RejectKeystroke = False Else RejectKeystroke = True
End Sub
Private Sub txtMessage_KeyPress(KeyAscii As Integer)
If RejectKeystroke Then
KeyAscii = 0
End If
End SubThanks in advance..I want to replicate the entire VB program as Java Program.
This has to be included in my project which i am doing in java.
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