Bjarne Joergensen

From Windows? (I presume, since you mention Cygwin).

 

Easiest is probably win32diskimager but it may be too manual for your test system. If you have gone to the extent of installing Cygwin, then I would try to figure out why dd didn't work (don't forget to unmount before trying with dd).

I used this : dd. if=C:\sd_2gb.img of=/dev/sdb count=1M

The src/disk.c file in there is more or less all that is needed. It does depend on QTWidget for its string and Error Message handling which is a bit unfortunate but could be fairly easily removed. But thinking a bit further it could even be implemented completely with the Call Library Node directly in LabVIEW.

Rolf, where do you find the file "src/disk.c"?

I can't find it in the installation of win32diskimager  

/Bjarne

Hi

In our automated testsystem, I need to write a .img file to a SD-Card with Labview.

Has anyone tried that and could recomend a solution?

I have tried to mingle with Cygwin and dd, but I can't get it to work.

thanks in advance

Bjarne

Hi rolfk

Thank you.

I don't think I understand it all, but what I need is the UTC time in ticks and I can get that from .net.

I don't need the timestamp format, although it would be nice and easy to read:-).

I have made a .net dll and call it in labview and getting what I want.

regards
Bjarne

Hi

I need the UTC time and convert it to tics.

I use this code(LV2012/DotNet 2.0):

Why is the Now time(local) the same as UTCtime. There should be a difference of 2 hours!

I made a program in C# and it is showing the right time (2 hours between Local and UTC)

regards Bjarne

Hi candidus

Thank you for the reply.
When I was waiting for an answer, a colleague of mine has worked on it too and got it to work in LV.
First off all, there was a little bug in the first snippet I posted. The Parameter "initially owned" has to be set to FALSE.
It works fine if you share the mutex between

• two different version of LV
• Two .exe
• two VIs running in different instance of the same LV version.(http://labviewwiki.org/Multiple_Instances_of_LabVIEW - other Methods).
  

Here is the new snippet:

best regards Bjarne

Hi

No one who has a solution?

Is it not possible to do with .net?

Is it a bug in labview?

regards Bjarne

Not a direct answer to your problem, but in similar situations I've solved the issue either by making the file producers use temporary names when they write the file, then rename them afterwards to something that the copier is looking for, or I've made the copier read the modification time/file size, and only copy those that have not changed for a certain time. This only works if the file producers write and close just once, or at a slow pace, and/or if the copiers can extract a valid content and copy that while the file is being updated.

Thank you Mads

It could be a solution, but I would prefer to use Mutex because in a near future I have another task where I shall syncronize with a DOT_NET program that use mutexes.

Regards Bjarne

Hi

I have at VI running LV8.2.1. It produce two data files.

These two data files has to be moved to at DB-server. I have wrote an exe in LV2012 that run in the tray.

This program look every minute if the other has produced the two datafiles. If they are pressent the exe move them to another place, make some datahandling at them and moven them to the data server.

Sometimes the exe can't move the files because the other VI is  in process of making them.

Therefor I would like to use a mutex.

I have tried to use .net (and mscorlib.dll) but I can't get it to work.

Here is the code (LV2013):

I have made two exes with different names, but when I run them it only one of them that work. It seems that it don't release the mutex.

The other execan only get the mutex when I stop the first exe and close it.

hope for some help:-)

regards Bjarne

Hi

I have tried to make a small UML diagram in the Symbio GDS, but it fails to generate the whole code. It only make a part of it and then turn into an error. I have sent the Error code but haven't got an answer yet:-(

Am I doing something wrong? Se attached pictures.

Hope for help;-)

Edit: I use LV2013 and GOOP GDS4.6

Regards Bjarne

Hi

I can see at the Symbio home page  there is a GOOP Developmente Suite v4.6 version!

What's the news? 2013 support perhaps?

regards Bjarne

I found it in this thread.

http://lavag.org/topic/12751-how-do-you-make-your-application-window-frontmost/

/Bjarne

Hi

Could it something like this you are looking for?

regards Bjarne

Well, I have closed the file before I want to move it, but sometimes I got the error anyway.

I think it's a matter of timing or windows is doing something or maybe the antivirus etc.

I made a VI that check for error and allow to try n times before passing error out as Kas also suggested.

thank you

Bjarne

Hi

Is there a way in LabVIEW to check if a file is open already?

regards Bjarne

LV2013John

I can't get your snippet to work? It don't transfor into code when I drop the .png at the BD.

By the way. Where do you find the Hi-rez tick counter (I use LV2013)?

regards Bjarne

HiDoes anyone know the value of other looking at your code?I just realised that I must become blind for the difference between g and s!I have used my set variable reference instead of my get variable reference ?So now my code is working ?Thanks for the help everyone and specially my colleagues ?regards Bjarne

Thank you ROLFK

All the other calls to the DLL is stdcall so I assume that this also has to be.

I only get "0" back as an answer. No crash - no error return code!

If I don't add an input at "buf" the vi will crash. I have trid with an 32 integer instead og an array, and bCnt =4, but got the same result ="0". I expect "31"

regards Bjarne

Hi

I have a problem getting variable form Göpel Boundary Scan DLL.

All my SW works fine except when I want to get a variable from the DLL.

The documentation from Göpel is here:

My LV(8.2.1) has this setup.

Am I doing something wrong?

Thanks in advance

/Bjarne Jørgensen

What about this solution   

/Bjarne

Hi

Can these VIs help you?

I think it was  Aristos Queue That posted it a while ago

8_2_1 LV Abort VI.vi

2012 LV Abort VI.vi

Regards Bjarne

Hi

Here is another one

http://lavag.org/topic/11674-cr-abort-vi/

/Bjarne

Hi Ton

Thank you, but my problem is not switching between different versions of dotNET.

The version(4.0) I want to use seems not to work in 8.2.1.

I used this to tell LV which dotNET version to load.

regards Bjarne

Hi

When you install a program it creates an ini file with the same name as the program name. How do I add"HideRootWindow = True" to this ini file, so it should not be done manually after installation? I've been looking high and low in application builder without being able to find it.

I use LV2012

regards Bjarne

EDIT: I found it under "Advance"

Hi

When you install a program it creates an ini file with the same name as the program name. How do I add"HideRootWindow = True" to this ini file, so it should not be done manually after installation? I've been looking high and low in application builder without being able to find it.

I use LV2012

regards Bjarne