Invalid access to the memory location

Hi
I got the error 998 (Invalid access to the memory location) while tring to connect with Company using DI API.
What could be the possible reason ?

Hi Marco,
I got this error, and I fixed by removing the SM_OBS_DLL folder from the Local Settings Temporal folder in Windows.
Normally the path is the following:
C:\Documents and Settings\ USUARIO \Local Settings\Temp
Hope it helps.
Emanuel.

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ERROR 998 - Invalid access to the memory location

I have the error 998 -Invalid access to the memory location-
I Tring to connect with Company using DI API.
Can help me?

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Is it possible to know the memory location of a variable in java

Hai all,
i want to know the memory location in which a particular variable is stored. is it possible to know in java.

I just wanted to test the internal processing of the
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[C Programming Language] How to check if the memory location speci ...

How do I check if the memory location specified in the pointer is freed and available or not? in C.

Barrucadu wrote:
Furthermore, you can't check if a pointer has been freed or not, as the value of the pointer is unchanged. I find it's often useful to have a "checked free" macro like this:
#define xfree(ptr) if(ptr != NULL) { free(ptr); ptr = NULL; }
Now you're safe from accidental double-frees (although, their presence indicates something is wrong with your logic somewhere, even if they're harmless) and you can easily see if a pointer has been freed (which, again, should really not be in doubt, but it's nice to be sure).
free does nothing if the pointer is already NULL, so the if statement is pointless. Use this:
#define xfree(ptr) do { free(ptr); ptr = NULL; } while (0);

Using the In port.vi and Out port.vi in LabVIEW access my the Cards(Home made)

Hi Everyone,
I have got the Cards (home made 8 bit and 16 bit ) plug in at slot ISA my PC (I am using the commands inport and outport (addressed with 318-31A Hex) in C language to access very good).This now,I want to use LabVIEW language to access data directly to Port at my the Cards. In LabVIEW, Can I access data to port using the In port.vi and Out port.vi located in the Advance?
My English is poor, you don't laugh when you read it.
Thank you a lot.

SachaE wrote:
> LabVIEW 7.0 cannot use the built-in In/Out Port VIs with a 32-bit
> address. Instead, you will have to use the versions of these VIs found
> in previous versions of LabVIEW.
Are you talking about physical memory access here? If so that is
something entirely different. The Intel x86 architecture uses a separate
IO address range which is entirely separate from memory space.
And at least up to the first Pentium models it was definitely never
possible to address more than 16 bits for IO address space.
This of course has gotten a little more complicated nowadays with many
PCI boards being actually mapped into memory address space instead of IO
address space. So eventhough a PCI board is more like an IO device it
often is accessed in the memory space.
> Actually, the In Port and Out Port VIs are intended for 16-bit port
> I/O and not for writing to arbitrary addresses in memory. For this
> reason, writing to 32-bit addresses never should have been allowed.
I think the VIs to access physical memory addresses were different than
the ones to access IO addresses. And yes it is definitely not a good
idea to have an application poke into physical memory as it could
completely screw the system to the point where you couldn't start it
anymore. Also IO devices mapped into memory address space are almost
always typically plug and play devices, so their address is not really
fixed and you need to do quite some more work on OS level to enumerate
your hardware and find the resources used before trying to access it.
This is something not really suited to try to do in LabVIEW and
therefore should be at least implemented as DLL but in fact anything but
a device driver is a very bad kludge.
> One possible work-around would be to use NI-VISA to perform
> register-level programming. NI-VISA gives you access to any PXI/PCI
> board, not only NI boards, and can be used to access the board's
> registers.
>
> http://zone.ni.com/devzone/conceptd.nsf/webmain/ADF3152837E2B4A486256B5600642AC7?opendocument
Thanks for this. Didn't now this existed in NI-VISA. Will check it out.
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

How to get the memory address of an array (pointer in C)?

I am writing an application that exchanges data with a PXI device via DMA. Basically I will provide it a memory address and a direction, and it transfers the data. I would like to give it the memory location of an array in LabVIEW, but I do not know how to get the memory location without doing a DLL call to C code that returns the pointer. Is there an easy way to do this in LabVIEW? Any help is much appreciated.

A similar question was asked recently regarding strings. You cannot pass pointers in LabVIEW as you do in C. You can pass an array to a DLL, but that means you would need to write a wrapper DLL. Be sure to read the section in the LabVIEW Help on calling code from text-based languages and also take a look at the "Call DLL" example that ships with LabVIEW - it contains many examples of how to deal with various datatypes.

Get memory location....need help

I download XSQL servle and set it up already.
Now I try the "Adhoc Query Visualization" from my own database, but if I query from a view or from a object type is varchar2 then I will get the memory location. I tried the same example from OTN live demo, it works normal. So why I get the memory location?
Here is my Demo http://211.75.41.149:7070/xsql/demo/adhocsql/sqltoxml.html
Thank you for your any help.
null

Forget it. I tried your URL and see the output. Have to check with a few people who might recall a similar problem.
You'll notice that on your installation,
a query that does not involve user-defined
objects like:
SELECT * FROM EMP
does not have any problem.

Viewing memory locations in java

hello!!
i would request to know how we view memeory locations in java. just like we do in C++( we use &variablename) to get the memory locations i would like to know how we can view memeory locations in java. once accidently i had compiled a hjava program and the program crashed and after crashing it showed the memory locations on the screen. can anyone help me receate the error ?? i unable to recreate it !!!!

...it's apparent to me, though, that Java references are in fact pointers behind the scenes, for example:
class DemoReferences
     public static void main(String[] args)
          int One[] = {1, 2, 3};
          int Two[] = One;
          int Three[] = Two;
          One[0] = 45;
          System.out.println(Three[0]); //45
}so if your program crashed, it seems plausible that an address might be displayed by your operating system.

RUNDLL Error loading CTMBHA.DLL invalid access to memory locat

Error message at start up:? "Error loading CTMBHA.DLL? Invalid access to memory location"
Does anyone know if this file has to do with Sound Blaster Audigy ADVANCED MB Ready, DR release 5.0.3708 ??If so, I will follow the reinstall instructions per the FAQ.?Thanks.

Here's the solution from the_Riddler that works:?So I broke out REGMON from sysinternals, and tried the install when the Status 200 error came up I saw that they were accessing the "C:\Documents and Settings\All Users\Application Data\Creative Labs\Licenses" directory.. So I went to the Directory and renamed the B3420000.dat file there to B3420000.dat.old?Then did another reinstall and sure enough the application continued and allowed me activate the product and continue the install..

TH3800.dll loading causes "Invalid access to memory location".

Hello, back again.
I'm writing a thermotron temperature control program for a school project and I'm having an issue with the drivers supplied by Thermotron. I unpacked their drivers and put them in the instr.lib folder, then I put the included TH3800.dll into C:\VXIpnp\WinNT\bin in accordance with directions. I'm using the Student Edition of LabVIEW 2010 with SP1, and every time I load a VI from the library I get an error message that says:
Error loading "TH3800.dll".
Invalid access to memory location.
I have no idea what the problem is exactly, and am not sure what to do to fix it. Any suggestions would be appreciated.
Thanks,
Simon
Solved!
Go to Solution.

I'm not positive, but it seems like either the drivers you have are corrupt, don't exist, or are locked in memory somehow. This would definitely be an issue you'd want to bring up with Thermotron as they'll have more details about their DLLs. I tried googling about it and the dll name it's self brings up shockingly little information. Definitely something worth talking to them about!

What causes inconsistent error: Error loading "mydll.dll" Invalid access to memory location.

I have a set of sample code vis which are wrappers around an external dll using the call library function nodes. These work in all versions of LabVIEW from 6.1 to 8.2. In version 8 and 8.2, there is an inconsistent error which appears after a vi is opened, run successfully, closed and then re-opened some time later - all without closing LabVIEW. The error is reported without an error number as 'Error loading "myDll.dll". Invalid access to memory location.' If LabVIEW is closed, reopened and the vi loaded again and run, it works fine. The same error occurs if a second vi calling the same .dll is loaded and run after the first is successful.
Since the vi works just fine the first time it is opened, why does this error occur the second time? What do I have to change so that I don't have to close LabVIEW every time I want to run a different VI?
Thanks in advance.
Mike.

Mea culpa. We have found a fix for this. It relates to our dll structure. We create a message pump in the dll associated with a hidden window. When the dll is initialized, the window is registered with the operating system. When the dll is unloaded, the window is closed but we weren't de-registering it. This caused the problem the second time the dll was loaded. By de-registering when the dll is unloaded, the problem has been solved.
Mike.

Javascript error: invalid access to memory location

I have a Popup Key LOV (Displays description, returns key value) in a screen that works great.
Then we were giving a training to use the app.
This one room has 8 computers in it and all get the Javascript error:
Error: invalid access to memory location
after the Popup comes up and then when selecting one of the choices.
The version was 6.0xxxx and other machines are IE 7.0 but we found another machine not in that room that had 6.0xxx and it works fine.
That room may not have had upgrades to OS or ???, ???
Any ideas in what to check?
Thanks Bill

Hello,
And this is a javascript error your getting? I've never seen that one, have you checked in FF it's debug message is better and will help you narrow it down.
Since there your getting inconsistent results between the machines in that room compared to others is some sort of plugins on the machines your using for training? Popup blockers or tracking plugins (seen that in some UI labs).
My other guess is that there might be some js trying to run on the popup before it's opened, but that wouldn't account for the inconsistent results.
Carl

Invalid access to memory location

Dear All
good your time
I convert a labview program 5.1.1 to 2008 (by convert forum) and run it. before that i install this "http://www.keithley.com/support/keidoc_searchresult?keyword=2400&item_type=Software+Driver".
i has faced this error: "error loading: directory file\ke24xx.dll Invalid access to memory location"
i dont like install other driver. becuase when i run this VI (in following i attached) need to pnp driver (contained ke24xx.dll file) not other drivers specially those news similar to "http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=25B255F3AA83660EE0440003BA7CCD...". i just want to run this VI. my friends run this VI with labview 2007 and pnp driver.
I dont know whether there is the error due to converting of the VI or i must install labview 2007.
please guide me! God give you good thing.
Best regards
Solved!
Go to Solution.
Attachments:
ke24xx.zip ‏873 KB

I still don't understand why you would not be using the certified NI driver for the instrument. You were complaining about not having the time and you want to install old and obsolete code. Oh, well.
You did not include the dll or provide any information on your os so everything would be simply speculation. Are you trying to load a 32 bit dll on a 64-bit os?

LWJGL.DLL Invalid access to memory location

hi, can anyone help me? I get this error when trying to load a java program:
java.lang.UnsatisfiedLinkError: C:\Documents and Settings\CAM ANH\Application Data\Sun\Java\Deployment\javaws\cache\http\D67.18.221.154\P80\DM~comcallo\DMJARS\DMGame\RNDLL_Win32.jar\lwjgl.dll: Invalid access to memory location
     at java.lang.ClassLoader$NativeLibrary.load(Native Method)
     at java.lang.ClassLoader.loadLibrary0(Unknown Source)
     at java.lang.ClassLoader.loadLibrary(Unknown Source)
     at java.lang.Runtime.loadLibrary0(Unknown Source)
     at java.lang.System.loadLibrary(Unknown Source)
     at org.lwjgl.Sys.<clinit>(Sys.java:64)
     at coc.game.utils.a.b(SourceFile:43)
     at coc.game.gfx.A.c(SourceFile:212)
     at coc.game.utils.F.a(SourceFile:116)
     at coc.game.gfx.q.<init>(SourceFile:132)
     at coc.game.gfx.v.<init>(SourceFile:21)
     at coc.game.u.a(SourceFile:2065)
     at coc.game.gfx.n.g(SourceFile:90)
     at coc.game.CoC.<init>(SourceFile:339)
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     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
     at java.lang.reflect.Method.invoke(Unknown Source)
     at com.sun.javaws.Launcher.executeApplication(Unknown Source)
     at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
     at com.sun.javaws.Launcher.continueLaunch(Unknown Source)
     at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
     at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
     at com.sun.javaws.Launcher.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)

Re-install lwjgl.dll
OR
Fing latest version of lwjgl.dll and install.

Invalid Credentials: The Network location cannot be reached

I am working with MDT 2010, and I am getting the error, "Invalid Credentials: The Network location cannot be reached." When I run the LiteTouch 64 bit, I don't think the network is working. It's like there is not driver for the network card in
the LiteTouch 64 bit to make the network connection. When I hit F8 key, it brings a DOS box up for testing, and I found out these things.
- I can ping the loop back address 127.0.0.1.
- Cannot use the net use command to connect to the server share \\server01\DeploymentSahre$.
- I can not ping by name or IP address the server that is holding my Deployment Share.
This is the first time I am working with this technology, and I was following a guide off the Technet library. It almost like I am missing the driver for the network card. I have Windows Deployment installed on server01, the server will answer,
and I am able to put in my user name and password, it accepts and starts loading.
I did figure out how to inject the network drivers into Windows Deployment for the Motherboard I was using, do I have to do the same thing here again? MDT is using the Windows Deployment Images on the server01; MDT is setup on server01. I would have
thought that since the driver was already injected into the Image MDT would use that as well. So, do I need to put a driver into the LiteTouch 64bit image and if I do how do I do that?
thanks very much for your help,
Rick Arnold
ArnoldConsult
Rick Arnold Arnoldconsult, MCP

If you haven't updated the deployment share after adding the proper drivers to OOBD then your LiteTouch boot images will not have them included. Just right click the deployment share and click on Update Deployment Share, it will take a while but it
will rebuild the boot images with the drivers you've included in OOBD. Then it's just a matter of either recreating the flash drives or loading the updated image into WDS.
Another thought:
We had an issue with some HP's that had Main Boards replaced. the BIOS time was WAY off and the UUID wasn't setting itself because the network was denying it access to our servers (because of the horribly wrong time). Once we corrected the time
in the BIOS everything ran fine. The error we got while trying to do the deployment was the same as what you describe and we could still ping various machines on the network too.

Invalid access to the memory location

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