Wsn OR programmable nodes using the nesC?

Similar Questions

• Disable a node using scripts

  Leave well as I a VI.  Using scripts I can find all the objects of a particular type on the block diagram.  Is there an easy way to tell is now drawing a design schema for the disabled around all nodes, I found?

  Like lets say I want to find all nodes property on a block and disable them.  The only solution I found was to find all nodes in property, by using the crossbar for GObjects, then I can make a new Structure to be disabled with the new object VI, put in the same place and the limits that the property node, with the same owner.  But then, I still need to move the property node in the case of persons disabled structure.  But then, I have all kinds of broken wires that were once on the property node that I now moved ousur.  I need to understand how it was designed before the move, it wire to the tunnel Structure with disabilities then wire the tunnel on the pod on the property node.  I need to do for each wired terminal and each property node.  And then I need wiring through the case turned on the structure.

  What I was hoping to find a way to pull the disabled schema structure using scripts, but perform the same operation as if I drew the structure is, and this are also all nodes I captured with my draw, in the case of people with disabilities.  Is there a way to do this with scripts?  Can anyone think of a simpler way to disable nodes using the design schema disabled?  Thank you.

  Try to use the method of Sélection Enclose . There is here an example of shipping for it:

  examples\Application Control\VI Scripting\Moving Objects\Enclose selection and Move.vi

  .. .aaaand I just now discover after the opening of this example that someone recommended this method recently for a new method of selection to reach 2 . I'll take the updated example.

  Anyway, the strange thing about this method is that it must give the method a reference to an actual structure to define what kind of structure you want to encapsulate the code with. This requires usually drop a dummy structure, by calling Enclose Selection 2, then removing the dummy structure after that wraps the code.

• Possibility to hide nodes in the tree?

  Hi all

  I have reviewed the documentation, used Google and had a search in this space, but I can't find anything relevant...

  We have a number of people who are accustomed to using SQL * Plus for Windows (Windows-specific SQL * more client that has been deleted, I believe in GR 11, 1 material) to do their work (mainly support), and there are a few things that don't miss if force us to use 'classic' SQL * more in one window BACK. SQL Developer is a replacement of logic, but one of the questions a team member has raised is that same SQL Dev gives you all the permissions that you wouldn't in SQL * Plus, it has make it very easy to, for example, expand the 'Packages' in the tree and watch and potentially "inadvertently" to make a change to the code.

  Is it possible to hide certain nodes in the tree? Yes, I know that we can appropriate Oracle security to user to configure users such that they do not have permission on the particular objects, but I'm looking for something 'quick and dirty' at the moment. No real security, but something that makes it less likely that someone will make an involuntary change.

  Kind regards

  John

  Hi John,.

  You can "hide" the nodes using the preferences: filter database browser. It works at the level of the types of database objects. This is the level that you want to say or you want to hide from the nodes in a level of detail more?

  Best regards

  Joop

• Despite indicating to the path, still have manually pointing DLL every time LV works using the library function node call

  I use the node of the library function call in LV 8.6. I checked the path to specify the box diagram and made directly in the DLL file that I use. Whenever I have started with Labview, I have to go to the diagram and physically find the DLL in one of my calls to make it work properly. Once I have do this everything seems to work as expected. Anyone else see this issue? Any suggestion would be appreciated.

  Thank you

  Steckman wrote:

  I use the node of the library function call in LV 8.6. I checked the path to specify the box diagram and made directly in the DLL file that I use. Whenever I have started with Labview, I have to go to the diagram and physically find the DLL in one of my calls to make it work properly. Once I have do this everything seems to work as expected. Anyone else see this issue? Any suggestion would be appreciated.

  Thank you

  Probably that DLL does not depend on other DLLs that reside in the same directory you point to in the configuration node dialog box call library. What is happening is this:

  Without going into this directory:

  LabVIEW applications Windows to load the DLL, Windows detects that it needs to load other DLLs and can not find in its standard search sites:

  (1) already loaded into memory

  (2) in the application directory (where the exe that began the current process resides in the LabVIEW IDE would be where is LabVIEW.exe)

  (3) in the system directory

  (4) in the Windows directory

  (5) any directory in the PATH environment variable contains

  (6) in the directory 'active '.

  Because Windows cannot find a person to load DLL he abandoned the main DLL loading and returns an error to LabVIEW.

  Now, you go to the configuration dialog box and point to the DLL. The dialog box browse file in LabVIEW uses the standard OS dialog box and this dialog box has the behavior obnoxious always update the "current" directory in the directory where a file got selected in. LabVIEW sees now that the path has "changed" and asks again to load the DLL. Yet once, Windows detects that it needs to load other DLLs too for this DLL but this time going over the search order, it will actually hit the DLL in the same directory and that's all fine.

  It is certainly NOT a problem of LabVIEW. LabVIEW does not and should not really need to know that a DLL needs other DLL loaded and more importantly should never try to think he can do better than Windows, it probably could, but is simply not his task of dependency DLL loading.

  It is your responsibility as a programmer and user of this DLL to know its dependencie, and if you did not write the DLL, to hit the original on his head programmer, if it has not documented these dependencies and make sure that these dependencies are actually properly resolved for Windows placing them in one of the places mentioned above

  ((2) is generally the best location for applications applications because it will not pollute the Windows directory or the user of the application system and 5) is the best for the development machine as you can add a directory to your PATH environment variable where you put the dll you need to develop a specific application.

  Rolf Kalbermatter

• Use the same node of IO in sbRIO (VxWorks) 9606 and 9607 (Linux)

  Hello!

  I have one tries to use the same FPGA VI on both a sbRIO 9612, 9605, 9606 and 9607. For the three first it is perfectly feasible as soon as I call the IOs even name to different boards. For the 9607 I can't make it work.

  A knot of IO on 9607 looks like:

  

  And I can't the closest to a 9606 is:

  

  Because I'm not allowed to name it with backslash.

  And it does not work on both targets.

  Is there any other way to the insertion of a structure conditional disable for each node of e/s I use?

  Thank you

  Anders

  Hi Anders,

  I noticed in your example, you created a CLIP in the interface with your e/s under the 9607. Did you plan using VIDEO-specific features? If not, you can simply add an EGGA as in the 9606 (target FPGA 9607 right-click > New > RIO Mezzanine Card) and the e/s should look like. This can give you more parity between the targets. Otherwise, I think that the two interfaces will have different properties. I modified your sample project and attached. Take a look at "IO2.vi" and let us know if that's what you're looking for.

• calculation using the formula node needs two clicks

  Hello

  I want to use this piece of code for a larger program. My goal is to take 10 values and calculate two values using a formula. I used the formula node as the calculation functions digital ordinary would be too heavy. If I click on save, it saves two values to a file.

  The problem that I am facing is that when I start the program, it works very well for the first time. The second time however, if I change the values, and then click on save, it still displays the previous values, or some altered values. I have to click on save twice to get the correct values. I don't understand the reason why this happens. Can anyone help?

  File attachment: Capture screen and VI.

  P.S. If the solution can help with the problem, I'm ready to change any part, but please, not irrelevant to suggestions on how to * improve my code *, because I've worked hard to make it work with another major project.

  I don't completely understand the description of your problem.  But I see two problems.

  1. the "Save" button actually belongs to the event that handles the record button.  And the case of the event should really be Jean-Claude Value Change of mouse down?

  2. your STOP at the bad mechanical action.  Since it happened so this just released, it is only true while you're pressing it.  It stops the upper loop, but can't stop low loop because your loop will also be waiting to save button to press.  Stop will always be false because you cannot press two buttons at the same time.

  Try to make your action to stop button to be changed when released.  You must return the button to false programmatically born of two loops.  In fact, it would be better to have a case of events for the stop button to stop the lower loop.

  I don't understand what you're trying to do in the upper loop.  You read a file as soon as possible, and it seems to be the same file that you create in the lower loop.  Why?

• When I use the library function node call in real time, is loaded only once for all or load the DLL whenever it is called?

  When I use the library function node call in real time, is loaded only once for all or load the DLL every time when it is called?

  I have a critical application in real time, in which I use a piece of DLL function developed in C++.  It is ok?  Make sure any senior developer?

  Thank you in advance.

  The user interface thread is the thread that is used to update the user interface. It's slow. And it's supposed to be that way because humans are slow.

  The call library function node can be configured as this thread to use in the configuration for it dialog box. Please visit the LabVIEW documentation on how to do this.

• The Application of the filter node of event using the mouse down?

  Hello

  I have a question regarding the application of the filter nodes of the Mods and PlatMods event.

  With respect to the event "Button" filter node, I can change the response when I click on the botton, either for a right click or left click.

  The filter node throwing event is more common to use, it can provide the opportunity to reject the action of the set button.

  But now I can't realize how to use the node of the Mods and PlatMods event filter.

  I change the value of the double click event filter node, then what?

  Could someone give an idea or a suggestion? Example or scenario is preferred, thank you very much.

  

  There are several reasons why you want to change the action with the filter node. For example if you also have a key value changed event, you could turn a right-click (that normally would be open the contextual menu) with a left click then immediately triggered the value change event.

  Similarly, you might have a change of value and double click even for a listbox control. Then, you could add a fiterling event mouse that would make a single click (normally not trigering a change in value) in a double-tap for some values, but leave in one click for other values.

• dial the node of the library - using a structure with dll

  Hi people.

  I expect to receive assistance or advice on solving this problem I am having in labview:

  Some background - I am using the 'call library node' to allow me to use a .dll file to control remotely via RS - 232 power supply.

  I did very well so far, but I'm now trying to use the following:

  int TC4GetFnBlockSettings (struct T_FnBlock * p_fnblock, unsigned int type)

  int TC4SetFnBlockSettings (struct T_FnBlock * p_fnblock, unsigned int type)

  where

  struct T_FnBlock

  {

  unsigned int BaseFunction;

  Double amplitude;

  paper Offset double;

  Double symmetry;

  Double frequency;

  int BipolarAmplitude;

  int RectifyAmplitude;

  Double ExpTimeConstant;

  unsigned int NumPeriods;

  unsigned int UserDefAmplitude;

  unsigned int UserDefTimePrescaler;

  Double UserDefPeriodLength;

  unsigned int UserDefNumPoints;

  unsigned int InactiveLevelType;

  Double InactiveLevel;

  unsigned int AAPInputType;

  unsigned int AAPInputFilterKoeff;

  unsigned int AAPFlags;

  Double AAPInputScaling ;} ;

  Of course there is no such thing as a structure in Labview; I had hoped to use a cluster in its place, but the CLN does not input or output of a cluster.

  Any help would be appreciated!

  Thank you

  A cluster is a struct. In this case you don't want really the structure, but the pointer, which is problematic. I have read several posts about problems with this. The simplest solution would be to expose a function with the struct as input instead of the pointer, if you can.

  /Y

• How to use the node function call library for a function in the dll with the data SUB type

  Hi all

  I would ask for your kind help

  I am facing a problem with the call library node.

  I have a C++ (stdcall) function, which has Sub as data type

  XXXX error code (hwnd, lid, getValue, * Sub data1, * Sub data2)

  data1 and data2 types are constantly changing based on the value of 'getValue '.

  Mainly I can use the call library node several times and adapt each node according to the types of data data1, data2 and extract the values and use in the code. Here is no question. Real question is:

  My question:

  How can I use a node of library time call and make a case according to the 'getvalue', who will control the data1, data2 data type. Here I really seeking solutions.

  My tests:

  I used varaints as entry to the libray call node of the data1, data2 and selected parameters in the call libraby node as "Adapt to type. Here labview just crashed.

  I appreciate your suggestions to feedbackand.

  Thank you

  Karine

  You must allocate enough space for data1 and data2, and then pass a pointer to this space. An easy way to do this is the function to initialize table. Set the U8 type and size for the number of bytes required. Pass this array to the function as a pointer of table data.

  After the function call returns, you need to extract the data in the table. You can do it manually, but a simple approach is to use the array of bytes to a string. Then, in a housing structure, use Unflatten chain to convert the string to the correct data type. This method also converts the "endianness" which will be probably necessary; Be sure to only set all entries for unflatten correctly.

• How to use the node to call a library function to convert C++ source codes

  Hi all

  There are two dll name 'QMSL_WLAN_Transport.dll' and 'QCAMSL_MSVC10R.dll' and some codes c ++ to connect to the DUT. The two DLLs work together for communicaite with the DUT.

  I am confused as how to use the node to call a library function to load the 'QCAMSL_MSVC10R.dll' function as

  g_hResourceContext = QLIB_ConnectServer_UserDefinedTransport((HANDLE) USER_HANDLE,
  UserDefinedSend,
  UserDefinedReceive,
  UserDefinedFlushTxRx,
  true,
  true);
  

  It seems that 'UserDefinedReceive, UserDefinedSend, UserDefinedFlushTxRx' Processaddress?  And "UserDefinedReceive, UserDefinedSend, UserDefinedFlushTxRx"'s functions in 'QMSL_WLAN_Transport.dll '.

  UserDefinedReceive = (_UserDefinedReceive)GetProcAddress(hUDT,"UserDefinedReceive");
  UserDefinedSend = (_UserDefinedSend)GetProcAddress(hUDT,"UserDefinedSend");
  UserDefinedFlushTxRx = (_UserDefinedFlushTxRx)GetProcAddress(hUDT,"UserDefinedFlushTxRx");
  

  Attached DLLs and C++ code snippets.

  Need help.

  Thank you.

  These parameters are reminders - pointers to functions that are called by the DLL - and there is no way to duplicate this purely in LabVIEW. Search this forum for the word "recall" and you will find similar questions (for other DLLs). You will need to write your own DLL (in C, C++, etc.) that implements these functions and provides a way to transfer data to LabVIEW.

• Need help on how to create the transformation of the Park by using the MathScript node?

  Hello

  I want to generate a transformation of the Park by using the MathScript node. But there is an error message which confused me. Please can someone help me to have a look of my program? Thank you!

  The error message is "error-90011 occurred in error in the function mail to line 1.  The sizes of the input matrices are incompatible.
  Check that the matrices have the same size or one is a scalar.

  Possible reasons:

  LabVIEW: Sizes of the input matrices are incompatible.  Check that the matrices have the same size or that one is a scalar".

  Hello

  The problem is that all of your entries to the MathScript node are vectors.  All entries of the vector to the MathScript node becomes vector lines.  A multiplication of two vectors lines generates a size mismatch error.  If you really want a scalar of this multiplication of output (by calculating the dot product of vectors), then you have to bring your 'a', 'b' and 'c' vectors or your vector of 'x '.  If you want everything just multiply your elementwise vectors and produce an output vector, you must use the elementwise multiplication operator '. *' (time point).  Use this operator between your 'a', 'b' and 'c' vectors and your calculation of fishing.  For example, on your first line,
  d = (2/3)*a.*(sin(x))+(2/3)*b.*(sin(x-(2*pi/3)))+(2/3)*c.*(sin(x+(2*pi/3)));

  Don't forget to also change your output to a 1 d of DBL array variables.  You can do this by right-clicking on the output variable and selecting "Choose Data Type."

  Grant M.
  Staff software engineer | LabVIEW Math & Signal Processing | National Instruments

• IM new to LabVIEW. Is it possible to send the signal to more than one parcel on a chart by using the value property of the graph node

  I'm new to LabVIEW. IAM trying to display two plots on a graph using the node property value charts. I tried to feed the two signals into a signal of fusion and then in the value property node, but it did not work. Then I tried to build a table of two signals and it powers the value of hardware node. It did not work. What escapes me, should I use the node property value this way?

  
  

• How can I resize the window of my table using the node of furniture? Thank you

  Hello

  I want to first the size of the window of my table using its property node but I can't put it to "write".

  If anyone knows if this is possible?

  Thank you

  User

  Hello

  Some properties are 'read only' and there is not that you can do about it.

  However, to set the size of your chart, you can use the "conspiracy area.size" (I don't know how it was translated into french) can be found here:

  

  Hope this helps

• How to change the value of string clustered, to implement using the node value of property instead of writing directly on the flow of data or using the variable

  new to labview :-) and I have a problem when I want to change the value of a string in bunches, and I want to implement this using the node value of property instead of writing directly to the stream or by using the variable, enclosed is the picture.   No matter, I have change in cluster (control) or value of Popery out (indicator) cluster, the value (sensor 7) dataflow keeps unchanged even I gave the new value by value of property node. Thank you to give me some advice about this.

  

  Hi GerdW

  Thanks a lot for your answer. The reason I'm stubbornly tring to break the flow of DATA is: we have a test system that have about 100 screws, they have a few connected flow, some of them will be unbundling a cluster dataflow chain to check the value in order to make the different cases.  Now I want to insert user event by changing the control and influential cases during run time.

  As I initially uses a global variable (to control cases) instead of unbundle string data flow, it works well.  But then, I found there are a lot of screws that are using the string unbundle.  One of the 'lazy' means, I tried is to change the value via the property node (because that way, I did not need to find all the places where using the unbundle string and replace them with the global variable), then I noticed a problem with "dataflow", the value in the stream of cluster in fact will not be changed by changing the value of the property node.

  I did a test with VI simple (like the picture in last post), and after reading your advice, I tell myself that I need to understand the concept of "DATAFLOW" in labview, it seems that my "lazy" way can not work in this scenario.

  I have attached the criterion VI here, have you furthur suggestions on what I can do in this case?

  Mant thanks!

  Minyi