ASIO interface for LabView

Hello NI Forums! Cheers
As everyone knows, everyone is looking for a solution to get along ASIO drivers into LabView. In another post about this same topic, Dr. Ben Sternberg, from University of Arizona, told us about an existent ASIO LabView VI that was developed in the Laboratory for Advanced Subsurface Imaging (Original post: http://forums.ni.com/t5/LabVIEW/Has-anyone-written-an-ASIO-sound-card-VI/td-p/405683), the GenMon.
I'm an acoustic engineering student and i'm on an undergraduate research about beamforming, and i need to use the ASIO driver to acquire data and then analyse.
But there's an issue, the ASIO driver no longer works with the recent versions of LabView (LabVIEW 2010 and newer), because the ASIO interface was built in LabView 6.x using the CIN (code interface node) technology. Now, we know that LabView no longer supports this function, and the function used to do the same thing is Call Library Function Node. That's why I'm creating another post: to discuss with you guys a solution for updating this ASIO interface. So we can create a collective solution.
Given that other people besides me is looking for this kind of software, we need you guys, please, help us.
I'm an beginner programmer and i really can't do this alone.
The ASIO interface can be downloaded here: https://drive.google.com/file/d/0Bz8qBRJgS7wvN1ZJc1dYbmV6SUU/view?usp=sharing
thx!

In addition to what natasftw already told you, you will want to have a pretty sound understanding about C programming even if you can get away without writing a wrapper DLL in C (but from what I remember about ASIO that chance is slim, the API was not designed with high level languages like LabVIEW or Visual Basic in mind but rather as a means for C programmers to interface to various high performance audio hardware).
The Call Library node allows you to call DLLs but it requires you to know what a C programmer would have to do when calling that function from a C program and sometimes even a little more about how a C compiler treats specific situations that the C programmer wouldn't really have to worry to much about.
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Similar Messages

Problems in Operator Interface for LabVIEW

Hi Ray,
I am using LabVIEW 7.0 and TestStand 2.0 version. I am using the default operator interface for labVIEW provided in the TestStand and i am using custom step types in my sequence file.
This sequence calls a VI, which transmits strings that i specify from the serial port to the NI-7831 RIO Fpga Card for differnt baud rates. The same sequence is working fine when called from Sequence Editor but it is not working when it is called from Operator Interface for LAbVIEW. It justs either fails the test or skips them. Please tell me if there is any solution for it. I have attached the sequence file and the vi that i am calling from my sequence file.

Hi,
You forgot to attach your sequencefile and VI, but never mind.
I think the problem maybe that because you are using the default Operator Interface.
If it still the one in the NI folder, then you will have to re build the testexec.exe application using your LabVIEW 7.0 Application Builder. The default exe file has been built using LabVIEW 5.1.1
Before you start, copy the LV folder from OperatorInterfaces\NI\ to OperatorInterfaces\User.
Load the testexec.bld file in your Application Builder and rebuild testexec.exe.
Launch your new testexec.exe from the User\lV folder and retry your test sequencefile.
Hopefully that should cure your problem.
Regards
Ray Farmer
Regards
Ray Farmer

Asio driver for labview / free asio4all driver tia sal22

Greetings All
I'm using labview 8.6.1 and would like to use my asio drivers with labview is this possible? I've installed asio4all http://www.asio4all.com/ hoping that it would show up as another device to choose from but wishful thinking.
Does anyone know how I can get the free asio4all drivers to work with labview 8.6.1
ti sal22

Although I have no experience with that driver, my guess would be that if there's anything available, it's through ActiveX calls or a DLL.
If it does have ActiveX methods availabe, you will use an Automation Open function with ActiveX invoke nodes to make the calls. If it has a DLL associated with it, look at the Call Library Function Node. To use this you will need documentation on the functions so that you can specify the appropriate parameters and return values.
Alex Person
NI-RIO Product Support Engineer
National Instruments

Any 3D interfaces for Labview?

Is there any NI equivalent to Roboworks (Newtonium.com). This is software that can display a multi-joint 3D view of a robot, linked to Labview in real time.
While I found Roboworks appropriate for my needs, my company's policies don't agree with their sales process(online only). So, I am looking for an alternative.
I found ThreeDimSim, which supports COM programming, thus linkable to Labview. However, their sales site is not compatible to our company.
Any help is appreciated.

falkpl wrote:
Is there any plans to support openGL toolkits in LV7.0, I hav not made the switch to 7.1 from 7.0 since I have a major project nearing completion in 7.0 then I will switch. I had put some effort into developing a universal toolkit for openGL calls but got hung up on calling the drawing and events integration with windows. I could not get a valid device condext for a labview window. I wanted to render dirrectly to a labview window but this didnot seem to work. I was using OPENGL32.dll calls. I also would be interested to see a 3d toolkit similar to GLUT for labview.
-Paul
Basically, while the Picture Control in LabVIEW 7.0 seems to support the "draw OpenGL stream" opcode at least partly, the above mentioned Toolkit is made in such a way that it is not simply possible to resave it as a 7.0 version. So someone would probably have to recode the entire hierarchy in LabVIEW 7.0. Besides of the huge work this would mean, it is very likely that the OpenGL support in LabVIEW 7.0 was also not made public nor used outside of NI, because it was still experimental and had a number of bugs, problems, limitations, which might make above mentioned library more or less useless in LabVIEW 7.0 anyhow.
Rolf Kalbermatter
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

Adaptation of LIFA (LabVIEW Interface For Arduino) to other Arduino compatible boards

Hello evryone,
I am trying to use a ''Sakura board", which is an Arduino compatible board, having similar programming as Arduino. This board is manufactured by Renesas; more specifications on it can be found on the following link: http://sakuraboard.net/gr-sakura_en.html
What I would like to know, is if the firmware used for LIFA to interface Arduino with labview, or the ChipKit firmaware, can be used to this kind of Arduino compatible boards.
My aim, is to use the Sakura Board for acquiring signals from various pins(Be it digital or analog), and setting other pins (Digital) parralelly, using labVIEW, as this is done using LIFA, or LabVIEW interface for ChiKit!!
Thanks in advance for your support.

I haven't had any experience with the Sakura board, so can only go on the information on the website.
I've used the Arduino LabVIEW interface previously, and it basically uses serial communications between the PC and the Arduino. This serial interface is provided by the on-board USB-serial converter (an ATMega8u2 running custom firmware).
From what I can tell about the Sakura, it appears as a storage device when plugging into a PC, and doesn't seem to have a USB to serial converter. If this is the case, then the LIFA toolkit won't work. That said, my understanding of the Sakura board may be incorrect (for example I'm unsure what operation modes the slide switch changes between). If you can confirm it has a USB-serial port then LIFA may work. I guess the key thing is that the serial port is required.
You may be able to use a software serial port (http://arduino.cc/en/Reference/SoftwareSerial) on the Sakura to communicate with a PC, though that would require a PC with a serial port, or an external USB-serial converter. This approach would also require you to modify the LIFA arduino code (located in vi.lib\LabVIEW Interface for Arduino\Firmware\LIFA_Base) to reference the software serial port. It's probably a long shot that this will work, as the software serial library has been written for AVR chips, making use of their specific internal timers.

LabView interface for SRS DG645

I need to implement a driver for my SRS DG645 module connected to my computer by an NI GPIB, does a driver already exist in LabView? I need a LabView program interface on my computer seperate of my module to control it. I read that Stanford Research Systems does not assist with LabView programming for their machines, and so I have yet to find a LabView interface created for this module.
Thanks for any help!
Kelsi

Hi zeddy and others.
Sorry for replying on old post but i got just the same question.
I will be using SRS DG645 for my project on LabVIEW 7.0.
Do i need any driver for it?
When i search at NI website, i found some plug and play drivers for DG645.
but there are no driver for labVIEW 7.0..
http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=D62E8D508F9832E6E0440021287E6A...
Plus, the drivers need NI VISA 5.2 version to work.
Does that version with my LabVIEW?
Here is the compatibility table of Ni-VISA and LabVIEW but there is no LabVIEW7.0 in there.
http://digital.ni.com/public.nsf/allkb/CF4279A34F855AB186257B1F00003B82
Can you help me with it.
Thanks in advance.
Regards,
Eki

LabVIEW Interface for Arduino Toolkitについて

はじめまして。
LabVIEW2013にNI LabVIEW Interface for Arduino Toolkit を導入したいと考えております。
NIホームページからNI無料アドオンに進み、Arduino用NI LabVIEWインタフェースツールキットの画面からダウンロードを試みたのですが、
Step　One：　VI Packege Manager　のインストール後、このソフトを立ち上げたところLabVIEW Tools Network及びVI Packege Network に接続できないと表示されます。
どなたか、この現象の改善方法について御教授頂けないでしょうか?
宜しくお願い致します

返信ありがとうございます。以下に実際に表示された画面を貼りますので宜しくお願いいたします。
まず、VI Packege Manager を起動すると、左の画面が表示されます。
エラーが発生しているようですが、ひとまずOKを押すと次の画像が表示されます。
この画面ではライブラリにパッケージが存在していないと表示されており、
表記通りにToolsからCheck the VI Packege Network for Available Packages を開きました。
開いた結果、表示されたのが次の画像です。
この画面では、どうも問題がないような内容が表記されているように思えますが、
OKを押すと、また最初の画面に戻ってしまいます。
　LabVIEW　Tools Network　を起動したところ、左のような画面が表示され、
ネットワークに接続されていないことが分かります。
よって接続を試みるためにHelpからActivationを選択し、ひとまず30 day Trialに登録しようとしたところ、下の画面が表示されました。
　この画面ではサーバーに繋がらないという内容であったので、表記通り黒の太文字の部分をネットで調べたところ、どうもVIPM Professionaｌ　を購入しなくてはいけないようです。
私の考えでは、LabVIEW　Tools Network　に接続あるいはアクティブ化がされていないのが原因だと考えておりますが、その改善方法が分かりません。
そもそもVI Packege Managerは無料でも使用可能であり、LabVIEW Interface for Arduino Toolkitもまた無料アドオンだと認識しており、無料の範囲で導入しようと考えております。（LabVIEW　2013は購入しております）
宜しくお願い致します。

How can I have an english interface to labview if the package is in german

Hi ,
I'm a student that makes a project in Germany using labview ... the problem is that my german is not that good , and the labview is in german so here is my question :
how can I have an english interface to labview if the package is in german (labview 7 )
Any help would be apprecieted.

The only way to really have everything in English is to install an English version of LabVIEW. You may want to talk to your local NI sales representative about the possibility of getting a different version.
Doug M
Applications Engineer
National Instruments
For those unfamiliar with NBC's The Office, my icon is NOT a picture of me

A more successful experiment in creating compositable user interfaces for Config Dialogs

A couple weeks ago I posted an experiment in creating compositable user interfaces using transparent subpanels. The approach might best be described as, "It at least was notable for being novel."
Today, I'm posting another attempt, this one along more traditional lines, and far more successful. Particularly notable: this one can do all the arbitrary composition of the last one AND it solves the TAB order problem.
This solution uses a picture control and renders N copies of a control. When the user tabs to a control or moves the mouse over the control, a real control slides into that position to be able to catch the events (update mouse over draw state, highlight for keyboard focus, handle typing, etc). When the Value Change occurs, a master array of data is updated and the picture control is updated.
This is something that has been attempted in various forms in the past, but there are two aspects of this particular implementation that make it nice:
its programmatic interface for specifying the behavior of the various objects should make it fairly easy for a user of the framework to programmatically generate their dialogs
it handles the TAB problem without flickering, something I haven't seen in other attemps
This idea spawns out of conversation about the previous experiment -- thanks to those of you who posted on various forums, e-mailed me, or, in a couple cases, showed up at my desk. That last one is not something I'm encouraging unless you work at NI... just saying. :-)
Now, this experiement has already yeilded some interesting conversation. We note that as long as controls are instantiated independent of each other -- that is, no property of one control depends upon the property of another control -- this dialog system scales nicely. But in this experiment, I implemented Radio Buttons, which interact with each other -- when one is set True, the others go False. As soon as controls start interacting with each other (such as graying out one control when a checkbox is toggled, or having expandable sections, or really complex cases like updating a graph as some options change, like happens in some Express VI config dialogs) then we start needing ways to refer to the other controls. This rapidly moves us in one of two directions: naming controls or creating references. The naming approach is definitely my preference as it fits better with dataflow and I can do some interesting effects with breaking apart some of the tree. But all of this quickly starts sounding like "Please implement a XAML parser in LabVIEW." For those of you unfamiliar with XAML, in the world of UI design, it might very well be the coolest thing since sliced bread. A XAML string would indeed fit with dataflow, and we could start building that up. I hesitate to head down this road for two reasons. One, as many have noted, there's really not a good XML parsing library written in LabVIEW that can give me a useful DOM tree. Two, that's a huge project and my gut sense is that you'd have to complete a fairly large chunk of it before you'd start seeing any return on investment. But it is worth thinking about -- I might be wrong. Wouldn't be the first time. This code that I've posted today can at least get you started on the generation side if one of you decides to become industrious.
I'm turning my attention away from this project for now... coding in G is lots of fun, and I wish I could spend more days doing it, but this has been a side project and it's time to get back to my assigned projects in text programming. Building a powerful platform for automatic UI generation in LabVIEW would be really useful -- I see lots of requests for this sort of thing, and other languages are pulling ahead of us in this domain.
[UPDATE 5/17/2012 - There is an improved version.]
Solved!
Go to Solution.
Attachments:
ConfighThroughCtrlCreation.zip ‏558 KB

Elijah K wrote:
Thanks for posting this Aristos. I would normally be one of those to go bug you at your desk, but in case I'm not the only one with this question... which particular flickering problem are you referring to? The act of switching tabs? In all honesty, I've never noticed...
When you move controls around on the screen, normally you try to Defer Panel Updates while you do that. But Defer Panel Updates has an effect on control's abilities to catch certain mouse clicks, so when you're trying to move a control to catch the mouse, you have to work a lot without Defer Panel Updates, so if you're adjusting captions, etc, to match the new location, you can see flicker as properties adjust. You can move the control off-screen, as long as you have already updated the picture control to reflect the changes. It took a while to catch all the ways that the flickering can crop up. I think I got 'em all.
Attached are the VIs saved for LV 2009. Actually, they're saved for LV 8.6, but it doesn't work in 8.6 because of a bug in the picture control that existed back then.
Attachments:
ComposableUI_LV2009.zip ‏391 KB

How to create a login interface in labview PDA module?

How to create a login interface in labview PDA module? So that it checks with a list of usernames and passwords and allow to go to another VI?
Anu

Anu,
I've attached a really short example that does something like what you're talking about. It just compares the user's username and password a pre-determined username and password and then "logs the user in" based on that comparison. Like Greycat said, you probably want to store this username and password info in some sort of file on the PDA that's in an encrypted format for both security and flexibility of your application.
I hope this helps,
Justin D.
Applications Engineer
National Instruments
Attachments:
LoginVI.vi ‏17 KB

Arduino interface with labview: not able to upload lvifa base file

guys, you have to really help me out on this one i have been at it for days. i am new to this so please help me out. i have an arduino uno with atmega8 on it and i m trying to interface it with labview but everytime i tried to upload the lvifa base file it shows and error, and it reads "XYZ is not declared in this scope".
AFMotor.cpp: In function 'void initPWM1(uint8_t)':
AFMotor.cpp:87: error: 'TCCR2A' was not declared in this scope
AFMotor.cpp:87: error: 'COM2A1' was not declared in this scope
AFMotor.cpp:88: error: 'TCCR2B' was not declared in this scope
AFMotor.cpp:89: error: 'OCR2A' was not declared in this scope
AFMotor.cpp: In function 'void setPWM1(uint8_t)':
AFMotor.cpp:108: error: 'OCR2A' was not declared in this scope
AFMotor.cpp: In function 'void initPWM2(uint8_t)':
AFMotor.cpp:124: error: 'TCCR2A' was not declared in this scope
AFMotor.cpp:124: error: 'COM2B1' was not declared in this scope
AFMotor.cpp:125: error: 'TCCR2B' was not declared in this scope
AFMotor.cpp:126: error: 'OCR2B' was not declared in this scope
AFMotor.cpp: In function 'void setPWM2(uint8_t)':
AFMotor.cpp:146: error: 'OCR2B' was not declared in this scope
AFMotor.cpp: In function 'void initPWM3(uint8_t)':
AFMotor.cpp:162: error: 'TCCR0A' was not declared in this scope
AFMotor.cpp:162: error: 'COM0A1' was not declared in this scope
AFMotor.cpp:162: error: 'WGM00' was not declared in this scope
AFMotor.cpp:162: error: 'WGM01' was not declared in this scope
AFMotor.cpp:164: error: 'OCR0A' was not declared in this scope
AFMotor.cpp: In function 'void setPWM3(uint8_t)':
AFMotor.cpp:184: error: 'OCR0A' was not declared in this scope
AFMotor.cpp: In function 'void initPWM4(uint8_t)':
AFMotor.cpp:202: error: 'TCCR0A' was not declared in this scope
AFMotor.cpp:202: error: 'COM0B1' was not declared in this scope
AFMotor.cpp:202: error: 'WGM00' was not declared in this scope
AFMotor.cpp:202: error: 'WGM01' was not declared in this scope
AFMotor.cpp:204: error: 'OCR0B' was not declared in this scope
AFMotor.cpp: In function 'void setPWM4(uint8_t)':
AFMotor.cpp:224: error: 'OCR0B' was not declared in this scope
I tried different arduino IDE versions as well, it not working out.
Thanks!

https://decibel.ni.com/content/groups/labview-interface-for-arduino?view=discussions

ActiveX wrapper for Labview

Hello!
My name is Daniel. I'm from Argentina and I work in Tracnova S.A.
Tracnova is the Distributors of NI in Argentina.
I am having an issue with ActiveX development for wrapper an dll driver.
I have to read strain gage aquisition data from an USB device of MANTRACOURT (http://www.mantracourt.co.uk/products/wireless-telemetry).
The manufacturer provide an dll driver. It's shipped with example for VB6 that I have been testing and it works fine.
BUT I HAVE TO USE IT IN LABVIEW.
My first problem is that I have to provide an CALLBACK function pointer as parameter to "INITIALISE" function of the dll. Here is an excerpt from the
example that is shipped (Excerpt from a form module):
Private Sub Form_Load()
    'we will only handle base station addresses of 1
    iBaseAddress = 1
    Caption = Caption & " [DLL v" & VERSION & "]"
    CLOSEPORT
    'set the callback so we can receive data provider packets
    Init AddressOf CallBack ''''''----------------->>>>>>>>>>>>>>>> CALLBACK function pointer as parameter to "INITIALISE" (It defined as Init)
    'Open USB interface
    ok = OPENUSB
    If ok <> 0 Then
        ShowMessage "Cannot open USB interface!" & vbNewLine
    End If
End Sub
"CallBack" function is contained within .bas. Because You can only retrieve the address to a function or sub (public or private) contained within a
Standard VB Module. There's no way around this.
Here is an excerpt from the example that is shipped (excerpt from a Standard Module):
Sub CallBack(ByRef StringPtr As Long, Length As Long)
    Dim PBMsg As String, rc As Long, pEnd As Long
    Dim p(128) As Byte
    Dim cH As Byte
    Dim tID As Long
    Dim C As Integer
    On Error Resume Next
    CopyMemory p(0), ByVal StringPtr, Length
    PBMsg = Left$(StrConv(p(), vbUnicode), Length)
    'strip off the base station wrapper
    PBMsg = Mid$(PBMsg, 4, Len(PBMsg) - 5)
    If PBMsg <> "" Then
        Debug.Print CVStr2HEX(PBMsg)
        Select Case Asc(Mid$(PBMsg, 1, 1)) And &H1F
        Case PT_DATA_PROVIDER
            'pass data to the main form if we are not closing
            If Not Closing Then MainFrm.ShowMessage "DATA_PROVIDER Data Tag=" & Replace$(CVStr2HEX(Mid$(PBMsg, 2, 2)), " ", "") & " Data=" & Decode
(Mid$(PBMsg, 5, Len(PBMsg) - 6)) & vbNewLine
        End Select
    End If
End Sub
Then, when an data packet arrived, the driver call to "CallBack" function instead, so I can process it and do what I need.
But I can't pass pointer to function IN LABVIEW WITH "LOAD LIBRARY FUNCTION". So I did an ActiveX in VB6 for wrapping the dll of the driver. I attached the
files tha I did. The ActiveX sends an event to labVIEW everytime that a data packet arrived. I trigger an event inside the CallBack function that it's
not working, but if outside (look inside Iniciar() function where I wrote "This is the first event", the event trigger works.)
Why is not THE CALLBACK FUNCTION TRIGGERING THE EVENT INSIDE THE LABVIEW??
I also tried to make a Win32 DLL with C + + using PostLVUserEvent, but neither worked for me. I can send the code in C + + if you want to review.
Thank you for your consideration. I look forward to hearing from you.
Best Regards
Daniel Lopez
Design Engineer
TRACNOVA SA
www.tracnova.com
Attachments:
ActiveXPropia.zip ‏459 KB

Thanks a lot nyc for your kind reply.
Yes, you are right. They have COM driver, but the event does not fire in labview. Also, this driver does not implement a COM circular buffer which means that if you delay reading and processing the data, these are lost because they are rewritten. I have been asking for support to MANTRACOURT, but after several attempts, they told me they do not provide support for labview only for VB, VBA excel, and some other more, not even C + +
National I miss to much. Nice technical support !
Please help, I need to fix this issue
Thanks a lot!
Daniel

Creating GUI interface for cof

I am attempting to create a GUI interface on Labview that will read the measurements from a load cell ( Futek model L2331) that is connected
through a DAQ interface and will output Coefficient of friction measurements vs time. I would also like to be able to save the data to a file (eg...excel).
Can anyone help me out with this?
JC

What I suspect you need, more for comparison than anything else, is the Force in Newtons not the strain in µ strain.
So one technique is to leave the input in volts and then figure out how many grams of weight gives how many volts from the load cell, and applying the necessory factors to give the force in Newtons unless of course your working in Christian units (lbs force).
Either way, strain or volts you are going to have to calibrate the input. Unless the factors are all ready supplied. to arrive at the following
"The
coefficient of friction is simply µ = Fspring /Fnormal
= Fspring /(mblock ·g
), g=9.81 m/s²" Notice that there is no mention of strain here but force.
Strain is defined as: - "The relative deformation of an object subjected to stress. Hence, strain is dimensionless."
Don't forget to get the sense of compression and tension correct for the displayed units.

How can I use USB interface in Labview?

Hi.
Does labview allow to USB interface?
I have been seen allowing GPIB and RS232.
I'm beginer at Labview and wanna use USB interface for my target system and pc.
I wanna know how to labview interfaces from target system to pc.
And if Labview doesn't provide USB interface module, how can I use USB?
Is using a USB at Labview hard to beginer?
Plz, answer to my quetion.
sorry, my English is very poor.
thx for reading my article.

You can access devices connected to the USB port, but not in the same way as you would a GPIB or RS232 device. There are no USB drivers like there is VISA for GPIB or serial. Rather devices that plug into the USB appear to the systen as some sort of standard resource like a printer, disk drive or IO board. LabVIEW then interacts with these devices as it would any other device of the same type.Look at it this way, if you have a USB daq device you will access it through MAX the same as if it were a plugin card. Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
Be thinking ahead and mark your dance card for NI Week 2015 now: TS 6139 - Object Oriented First Steps

IS CLIP supported by Xilinx Spartan3E driver for LabVIEW 8.6?

IS CLIP supported by Xilinx Spartan3E driver for LabVIEW 8.6?
For HDL interface node, the enable chain and multi clock domain is difficult to understand
Solved!
Go to Solution.

Reidl,
Thank you for your answer. How do I uninstall my current version? I have looked in "Add or Remove Programs," but I don't see anything under "Xilinx" or "Spartan." I do see an entry for "National Instruments Software." However, when I click "Change / Remove" I don't see any entries for the Spartan Board.
I tried running the installation program, and I received the following message:
The NI LabVIEW FPGA Support for Spartan-3E 1.1.0 installation has failed with the following error.
You have a higher version of NI LabVIEW FPGA Support for Spartan-3E in your system. You must uninstall it before installing this again.
What is the latest version number? How do I check what version I currently have?
Thanks,
James Carroll

ASIO interface for LabView

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