Access I/O Ports from RT without an FPGA VI

I am having only one VI in RT but no VI for FPGA. So, How could I access the input Output Ports without using the FPGA VI. I am using the FPGA Interface Mode.
Thank you.

Guessing you are using a cRIO or something similar.
You just need to use the scan engine to use it directly.
Try these links
http://digital.ni.com/public.nsf/allkb/0DB7FEF37C26AF85862575C400531690
http://www.ni.com/white-paper/7338/en/
If the above doesn't make sense, post details of your hardware and software (version etc)
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Exception while accessing a com port from servlet

I am trying to access communication port from a Servlet using java communications api's.
But Following exception was thrown
Caught java.lang.NullPointerException:name can't be null while loading driver com.sun.comm.Win32Driver
The SecurityManager do not allow that opeartion.
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at java.security.AccessControlContext.java:270) at java.security.AccessController.checkPermission(SecurityManager.java)
at java.lang.SecurityManager.checkDelete()
at java.comm.CommPortIdentifier.getPortIdentifiers(CommportIdentifier.java)
Please help me.Tell me what to do.how to successfully access a communication port from a Servlet.

Solved!!. Just make sure u r placing neccessary files (comm.jar, win32com.dll and javax.comm.properties)onto the right JVM folders. Since JVM may be installed in many different location in your PC, U might want to do some search around looking for java.exe elsewhere in the system. Good luck!

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Serial port: from 6i without visa to 7express with visa ?????

upgrading from NT4 6i max 2.5 to 2000 7exp max3.1 my pzt on PC serial port do not move anymore. The DA converter do not understand the instructions.
Running max on the coms: done OK
Looping back the visa instructions: done instructions OK
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the coms are in function but the DAC do not move while driving with visa...any suggestion??

I also upgraded from LV6.1 to LV7 and use serial communication. I now use VISA (and prefer it). However, for the older functions.. they should work..
Have you looked into the VISA Advanced controls under Interface Specific and under "Serial". You may find the functions you need to "upgrade" your serial comm vi's.
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Help: can't access certain photo files from iPhoto without going via Finder

I have posted a number of files containing jpg photos and whilst I can see them in Finder they are not visible in iPhoto or indeed any other applications making it impossible to import photos into other applications (such as iWeb). I can of course do it manually (copy and paste) but cannot integrate photos as part of web page. Any ideas?

Welcome to the Apple Discussions.
What do you see when you open try to open the files in iPhoto?
Do you see a !
IF so:
Try these in order - from best option on down...
1. Do you have an up-to-date back up? If so, try copy the library6.iphoto file from the back up to the iPhoto Library allowing it to overwrite the damaged file.
2. Download iPhoto Library Manager and use its rebuild function. This will create a new library based on data in the albumdata.xml file. Not everything will be brought over - no slideshows, books or calendars, for instance - but it should get all your albums and keywords back.
Because this process creates an entirely new library and leaves your old one untouched, it is non-destructive, and if you're not happy with the results you can simply return to your old one.
3. If neither of these work then you'll need to create and populate a new library.
To create and populate a new *iPhoto 6* library:
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Move the iPhoto Library to the desktop
Launch iPhoto. It will ask if you wish to create a new Library. Say Yes.
Go into the iPhoto Library on your desktop and find the Originals folder. From the Originals folder drag the individual Roll Folders to the iPhoto Window and it will recreate them in the new library.
When you're sure all is well you can delete the iPhoto Library on your desktop.
In the future, in addition to your usual back up routine, you might like to make a copy of the library6.iPhoto file whenever you have made changes to the library as protection against database corruption.
Regards
TD

Exception while accessing com port from servlet

I am trying to access communication port from a Servlet using java communications api's.
But Following exception was thrown
Caught java.lang.NullPointerException:name can't be null while loading driver com.sun.comm.Win32Driver
The SecurityManager do not allow that opeartion.
java.security AccessControlException:access denied (java.io.FilePermission c:\j2sdk1.4.1\jre\lib\javax.comm.properties delete)
at java.security.AccessControlContext.java:270) at java.security.AccessController.checkPermission(SecurityManager.java)
at java.lang.SecurityManager.checkDelete()
at java.comm.CommPortIdentifier.getPortIdentifiers(CommportIdentifier.java)
Please help me.Tell me what to do.how to successfully access a communication port from a Servlet.

Hi there. I am also facing the problem accessing com port via servlet. if u have the solution, kindly forward to me at [email protected]
many thanks

Security Exception while accessing com port from servlet

I am trying to access communication port from a Servlet using java communications api's.
But Following exception was thrown
Caught java.lang.NullPointerException:name can't be null while loading driver com.sun.comm.Win32Driver
The SecurityManager do not allow that opeartion.
java.security AccessControlException:access denied (java.io.FilePermission c:\j2sdk1.4.1\jre\lib\javax.comm.properties delete)
at java.security.AccessControlContext.java:270) at java.security.AccessController.checkPermission(SecurityManager.java)
at java.lang.SecurityManager.checkDelete()
at java.comm.CommPortIdentifier.getPortIdentifiers(CommportIdentifier.java)
Please help me.Tell me what to do.how to successfully access a communication port from a Servlet.

Well, have you tried the obvious to add the following permission to your web server's policy file?
grant "file:<wherever my servlet resides>\myservlet.jar" {
permission java.io.FilePermission "c:\j2sdk1.4.1\jre\lib\javax.comm.properties", "write,delete";
}

I can not access to the isqlplus from the client

Version: Oracle 10.1.0.2.0
I have installed Oracle 10.1.0.2.0 on SuSE Linux Enterprise Server 8.
I can access to my dbconsole from PC without any issue.
I can also access to the isqlus environment from the server without any issue.
But I can not access to the isqlplus from client or PC.
I can go the first web page of isqlplus by using isqlplus url by clicking on isqlplus icon under home page of dbconsole.
But I enetered username and password.Its bring error page.
Note: isqlplus start up on the server.
Any help wil be appricated.
D

The page cannot be displayed\
The page you are looking for is currently unavailable.
The Web site might be experiencing technical difficulties,
or you may need to adjust your browser settings.
Please try the following:
Refresh button, or try again later.
If you typed the page address in the Address bar, make sure that it is spelled correctly.
To check your connection settings, click the Tools- menu, and then click Internet Options .
On the Connections\ tab, click \ Settings\b0 .
The settings should match those provided by your local area network (LAN) administrator or
Internet service provider (ISP).
If your Network Administrator has enabled it,
Microsoft Windows can examine your network and automatically discover network connection settings.
\line If you would like Windows to try and discover them,
Detect Network Settings <javascript:doNetDetect
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\b About Internet Explorer \b0 to determine what strength security you have installed.
If you are trying to reach a secure site,
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Click the \b Tools\b0 menu, and then click \b Internet Options\b0 .
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for SSL 2.0, SSL 3.0, TLS 1.0, PCT 1.0.
back button to try another link. \
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How can I transfer all of my music library from my iTunes library on my PC to my iPhone without Internet connection will filesharing for home sharing allow me to access my iTunes library from my iPhone if I do not have Internet access on my PC

How can I transfer music from my home PC in my iTunes library to my iPhone for without Internet access will home sharing allow me to access my iTunes library from my iPhone 4 without Internet

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Accessing SAP backend from j2ee without entrprise portal

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I have a time capsule connected directly to fiber connection. I have connected a windows server directly to TC and configured it for remote desktop connection. From my interanet I can access srvr but not from my home. What config I need on TC?

I have a time capsule directly connected to fibre optic point out. All pcs and macs are connected wirelessly to the internet. I have connected a windows server pc to TC. When configured for Remote desktop connection, I can access windows server from within interanet but don't know how to access it from internet. I guess I need to change some settings in TC to get some ip adress for the remote desktop connection from my home. Anyone who can help me out? Appreciate it.
Narmin

I am a little lost now.. I have read again your title and your first post.. and they seem inconsistent.
In the title you state.
From my interanet I can access srvr but not from my home.
Interanet is not a word I know.. I assumed intranet...are you talking about internet or intranet? And just to be clear say WAN or LAN.. !! Is your home part of the interanet??
In the first post you state,
I can access windows server from within interanet but don't know how to access it from internet.
Now this is more normal.. the issue is not in the home at all, it is accessible from there but fails from internet. If this is correct, then you can do a few obvious things to determine where the problem is.
But first I need to know are you actually testing from a different internet connection to your home lan.. you are not just trying the public IP from inside the LAN as that will fail due to the TC not doing NAT Loopback.
I am also assuming the TC is the only router in the network, and has the public IP on the WAN interface.
And I am also assuming you have turned on the ping responder and you can actually ping your public ip from the internet and get a response. This helps no end in figuring out where there are issues. Strange but I have no idea if there is a ping responder in the TC WAN so you might need to forward that as well. Also if you have a dynamic public ip address are you using dyndns or no-ip or some other service to connect.
1. Test bypassing the TC.. plug the internet connection straight into the windows server,, and test if you have access. If yes, the TC is the problem.. if not, your setup on the windows server is wrong.. look at firewall in particular.
2. Assuming from test 1 the TC is the problem, Post the screen shots of the port forwarding setup for us to look at.. that is by far the easiest way to check it out.
There are lots of references to port forwarding in the TC.. eg
http://must-know-mac.blogspot.com/2008/07/how-to-port-forward-time-capsule.html
The things that generally go wrong are firewall on the computer that is accepting the port.
The ISP doesn't allow connections on a particular port. (not likely in your case)
The router is behind another router.. double NAT will kill any port forward.
Upnp has already allocated a port.. not an issue as TC doesn't use upnp although a reboot of everything after you set port forwards is well worth it.. amazing how things don't stick properly without a reboot.
IP on the receiving device is not static and so changes.
Not enough or right type of ports are opened. This is always messier than it looks as one port is often not enough for two way communications.

Locking access to serial ports

I have two instruments on serial ports, and two independant VIs to control them. One VI may be running, or both, at any one time. The VIs may be running under LabView, or executables.
I would like some simple and elegant way of ensuring that when I run the second VI, it cannot access whichever port is being used by the first VI. I have experimented with using the VISA Lock Async.vi, which should do exactly that. However, it seems to be possible to have two VIs lock access to the same port, without generating an error. I can only assume that the "lock" is for the application (LabView), not the VIs.
I have looked at the synchronisation functions for a solution, but I can't see any reasonable way of using them. Semaphores are ok if you want to control access to a single port, but not the undefined list of ports that may be available on any given machine.
I could use a global array variable containing a list of ports in use. Not very elegant though...

CDancer a écrit:
Thanks, guys, but I don't think you have understood my problem. Read the first sentence - 2 completely independant VIs, and 2 or more ports...
I have written a program today using the globals option, which works very well. There should be a better way though.
Chris
ViLabWorks a écrit:
It isn't exactly clear to me why this is about one port. How much does one serial port cost versus programming time? Or even if it is about 4 serial ports the same applies. For me there is no question, doing something perhaps difficult versus spending next to nothing to solve the problem.
Well...
Sometimes you need to access the same equipement from different places in your application, or from different applications...
Usually I simply set/read a global "busy" boolean.
One problem I would like to adress is the automatic detection of specific serial hardware. How is it possible to find the port on which some equipment has been connected ? Of course, a solution would be to try to connect to this equipment by sending a command and waiting for the proper answer. However, before doing that, you need to detect the available ports (VISA Find Ressource), then scan each port after setting the proper baud rate, byte length, parity, etc..., then close the port to make it available to another application. Unfortunately, within LabVIEW, this procedure may interfere with other vis already connected to other serial equipments, with impredictable results.
Apart the solution proposed in my first post, I don't know a way of deciding if a port is already in use. May be I missed something ?
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...

Unable to access Custom UDTs returned from a Java Stored Procedure

Hi,
I have a UDT in the DB :-
create type contactrecord as object (
CN_ID NUMBER(8),
CN_TITLE VARCHAR2(40),
CN_FIRST_NAME VARCHAR2(25)
and this is the corresponding java class ContactDetails.java that maps to this UDT, that I loaded in the Aurora VM.
package package1;
mport java.sql.SQLData;
import java.sql.SQLException;
import java.sql.SQLInput;
import java.sql.SQLOutput;
public class ContactDetails implements SQLData
private String sql_type;
private long CN_ID;
private String CN_TITLE;
private String CN_FIRST_NAME;
public String getSQLTypeName() throws SQLException
return this.sql_type;
//implementation of readSql
public void readSQL(SQLInput stream, String typeName) throws SQLException
sql_type = typeName;
CN_ID = stream.readLong();
CN_TITLE = stream.readString();
CN_FIRST_NAME = stream.readString();
public void writeSQL(SQLOutput stream) throws SQLException
stream.writeLong(CN_ID);
stream.writeString(CN_TITLE);
stream.writeString(CN_FIRST_NAME);
//getters and setters for the class vars go here.....
There is another class A.java that has a java stored procedure/function, which I loaded into the Aurora VM
Here is the class.
package package1;
public class A
public static ContactDetails returnObject(String name )
ContactDetails cd = new ContactDetails();
cd.setCN_ID(1);
cd.setCN_FIRST_NAME(name);
return cd;
Then I declared the call spec for A.returnObject() as
FUNCTION returnObject(name varchar2) return contactrecord
AS LANGUAGE JAVA
NAME 'package1.A.returnObject(java.lang.String) return package1.ContactDetails';
Then I tried to call the function returnObject through JDBC calls from a class in another VM.
When I access the object returned by the function, I get a null object.
Here is the Client code:
CallableStatement cs = null;
ResultSet rs = null;
try
cs = conn.prepareCall("{ ? = call returnObject(?) }");
java.util.Map map = conn.getTypeMap();
map.put("ADMIN.CONTACTRECORD", Class.forName("package1.ContactDetails"));
conn.setTypeMap(map);
cs.registerOutParameter(1, OracleTypes.STRUCT, "ADMIN.CONTACTRECORD");
cs.setString(2, "John Doe" );
cs.execute();
ContactDetails cd = (ContactDetails)cs.getObject(1);
System.out.println("contact first name is:-"+cd.getCN_FIRST_NAME()); //Null Pointer here..cd is null....:(
if (cs != null) cs.close();
catch(Exception e)
e.printStackTrace();
Although If I try to access the same function from a pl/sql block, I am able
to access the contactrecord fields.
What could be wrong ..???
I could not find any error with the object mapping, as it works perfectly when I interact directly from my VM to the DB,
without going thru the aurora VM.
I am using a OCI driver to connect to the DB via JDBC.
Thanx in advance for any help at all.
-sk

Shahid,
I too have had bad luck in many cases with the automatic translation of Java types to PL/SQL and back. I think the SYS package on the PL/SQL side which handles some of the conversion is DBMS_PICKLER (there are equivalent Java classes which do the same in that world and seem to execute automagically when a conversion is needed). You might want to double-check the data type mappings against the DOC on OTN to make sure they map 1-1. Also make sure the permissions are granted against your objects to whoever is executing them, etc. Very often, I've resorted to passing simple scalar types between the two languages as in some cases the results with complex types are inconsistent.
Sorry this isn't much help,
-Dan
http://www.compuware.com/products/devpartner/db/oracle_debug.htm
Debug PL/SQL and Java in the Oracle Database

I can access my time capsule from my mac mini at work but my macbook can only access it from my home network. how do i fix this?

I have a Mac Mini and a MacBook, both were configured at home to access the time capsule. I have since moved the mini to work to use there and it has no issues looking up files on the time capsule which remains at home. The macbook whoever can only access the time capsule from within the home network. I can't seem to find what I may have done differently. Can anybody help?
Not sure if your allowed to post two questions, but it's may be related. I find that accessing the files on the time capsule from the mac mini or the macbook is very slow. Accessing the same files from an older HP laptop is as fast as accessing its own hard drive. How can I speed up the accessing of these files from my apple products. One would think they would work fast and the 'windows' computers would take minutes to map the drive each time...
Thanks for any help.

I have since moved the mini to work to use there and it has no issues looking up files on the time capsule which remains at home.
This cannot happen by magic though.. you must have configured the mini to access the TC remotely.. which method are you using, BTMM and iCloud??
The macbook whoever can only access the time capsule from within the home network. I can't seem to find what I may have done differently. Can anybody help?
How is the Macbook configured to access the TC remotely?? If you are trying to use BTMM and iCloud, then it might be a case that with the mini running the connection cannot be done by more than one computer at a time.. this is generally the case although I do not know if that is specifically true of BTMM method. Try turning off the mini and leave it off.. (off not standby)... then reboot the TC when you are at home.. and then try and connect the laptop to the TC the next morning from work. See if it is then able to capture the connection.. if so start up the mini and I suspect it now will not be able to connect.. that will prove that the TC cannot cope with two remote connections.
There also could be another factor in here. If you are accessing the laptop via the same router as the mini is on.. then actually you cannot have two users mount the same files on a TC.. from the same IP address.. as far as the TC is concerned both devices have identical IP, that is the public IP of the work location router.
If you happen to not be using BTMM then the situation is even easier.. you cannot make two different devices connect to the same network resource using the same port. That is the failing of the NAT system.. one device uses the port then it cannot be used by a second device. You will need to do some fancy footwork and use a different port.
Anyhow tell us exactly how you are doing remote access.. otherwise I am just guessing.
Not sure if your allowed to post two questions, but it's may be related. I find that accessing the files on the time capsule from the mac mini or the macbook is very slow.
Are you talking about files you are hosting on the TC?? Not Time Machine backups??
Can you tell me exactly how you are accessing the TC.. please do a test..
Copy a file to the TC and from the TC using the Laptop.. Use a single very large file, eg 1GB movie file.
Give me a read and write speed.. you can use activity monitor to give me an aprox average speed as well as peak.
Do the same test from the same computer with wireless turned off running ethernet.
Then do the tests from the mini.. same ones.. copy large file to and from the TC by ethernet and by wireless.. when using ethernet make sure wireless is off.
I strongly recommend you set IPv6 to link local only for your wireless and ethernet setup in the Mac.
eg
Now do the test from the HP laptop and give me the results from that.
Is the issue wireless only.. ??
Then you might need to spend a bit of time fixing the wireless in the Macs.. you can run wireless diagnostics in Mavericks.
About Wireless Diagnostics

How can I access my iTunes account from my iPhone.

1- I can't access my iTunes account from my iPhone.
Do I have to sync them or can I download the songs I bought without connecting with my macbook?
Last time i connected the two, all my music got deleted. Must have done something wrong, but have no idea how to prevent that from happening again.
2- My "preferences" panel in iTunes, only shows apps and books, not music- Why?
3- I can't save any music on iClod.

hello.
i followed your link on how to delete content from all things Apple, and nothing removes books, movies, music... it just gives said device(s) the iCloud/download icon on top of the book, movie... not sure what the 'hide' purchase actually does - after X'ing/hide, everything STILL appears across all devices using that account. could you clarify this any further?
if i am understanding iTunes correctly, then EVERYTHING we download (free or purchased) will be FOREVER accessible with zero way for us to control what is filling up this mysterious vault called the cloud? (creepy- apple is keeping EVERYTHING, what happens when the cloud gets full?)
since we have iCloud.com and it shows our "stuff" that we iCloud sync from our devices such as notes, contacts, calendar... then why doesn't apple provide an iCloud.com tab that shows ALL of our purchases so we as CONSUMERS control/delete what is in our account?
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Access I/O Ports from RT without an FPGA VI

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