Using Scope for LabVIEW DSP Module
I have a DSK6416 board and it is supported in my LabVIEW DSP Module on my LabVIEW 8.6 Professional. I want to use two scopes, one for the input audio signal and one for the output audio signal of my board. Which one should I use? NI-SCOPE or Two Channel Oscilloscope? Does NI-SCOPE support any dsk? Does two Channel Oscilloscope work with my real-time project?
Duplicate Post.
Similar Messages
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Decimate and interpolate blocks for labview dsp module
Somebody have developped decimate and interpolate blocks for labview DSP ( sppedy and DSK6713)? could send me for a teaching laboratory ?
Hi aif,
The following link is excellent for using LabVIEW DSP with the NI- SPEEDY or the TI's supported DSP's
http://cnx.org/content/search?target=&words=labview+dsp&allterms=weakAND&search%3Amethod=Go
You can choose the lab that is the closest to your application.
I hope that helped.
Cheers,
KostasB
Applications Engineer
National Instruments UK -
Labview dsp module with tidsk 6713
Hi,
I'm working with TI DSK6713 board on Labview 8.6.1 version with the Labview dsp module 8.6.
The idea is to delegate computationally heavy FFT operation to DSP processor computing it many times in a loop.
As FFT is tailored for DSP and, in fact, Labview DSP tool has build-in FFT module, it should operate much
faster on DSP rather PC. So I expect to have acceleration here, and I don’t see that so far.
Does anyone observe performance accelaration with labview dsp compared to labview only performance ? What are the tools for measuring timing statistics on labview dsp ?
Thanks.Hey Salander,
I am an applications engineer here at National Instruments and would like to get a little more information from you to see if I can help you with your issue. I am not particularly familiar with the TI DSK6713 as it is a third party product. It seems to me like you think that since the TI DSK6713 has a DSP processor it should hypothetically run LabVIEW DSP faster than your PC. I am wondering if the TI DSK6713 is fundamentally different than any other board.
Here is a link to the manual for LabVIEW DSP that might have some helpful information for you that could shed some light on your issue:
http://digital.ni.com/manuals.nsf/websearch/AB1AC84DD6DD3CEF86257456006B1FF0
Good Luck,
Doug B
Applications Engineer
National Instruments
Applications Engineer
National Instruments -
How to use Exceptions for a function module
Hi folks,
I have created a new function module.Its working fine, but i am not aware of using exceptions for a function module. I hav just declared an exception in the 'exception' tab. Could any body explain me how to use that in my FM source code....Thanks...Hi Shyam,
Have a look at this,
START-OF-SELECTION.
gd_file = p_infile.
CALL FUNCTION 'GUI_UPLOAD'
EXPORTING
filename = gd_file
has_field_separator = 'X' "file is TAB delimited
TABLES
data_tab = it_record
EXCEPTIONS
file_open_error = 1
file_read_error = 2
no_batch = 3
gui_refuse_filetransfer = 4
invalid_type = 5
no_authority = 6
unknown_error = 7
bad_data_format = 8
header_not_allowed = 9
separator_not_allowed = 10
header_too_long = 11
unknown_dp_error = 12
access_denied = 13
dp_out_of_memory = 14
disk_full = 15
dp_timeout = 16
OTHERS = 17.
IF sy-subrc NE 0.
write: 'Error ', sy-subrc, 'returned from GUI_UPLOAD FM'.
skip.
endif.
Regards,
Sai -
Error for LabVIEW PDA Module Version 8.5
Hi all
I am face on with problem when i try to do the LabVIEW PDA Module Version 8.5 Tutorial which is include in labVIew software package.All my lincence status also activated and do install all the accessories that i need.I follow all the steps by tutorial sheet.But i still face on with problems, so now i would like to uninstall my LabVIEW software and reinstall again.The error is as shown in attach file. i want to know is there any problem if i uninstall my software? If anyone can show me why the error is? The technician said even though the error come out, just close and wait for about 5 min.After 5 min already the emulator will be come out.But mine haven't comeout.So please any one can show me?
Thanks a lot
Best Regards
Nyan Lin
PS: The tutorial that i do is as shown in attach file.
Attachments:
PDA_Getting_Started.pdf 452 KB
error14.JPG 119 KB
error8.JPG 131 KBHi Stephan
Thanks for giving your time for me. I am a new LabVIEW PDA Module user.And I have to do it because of my final year project.I am student from Nanyang Polytechnic (Singapore). I never use labVIEW software and LabVIEW PDA Module software before.This is my first time. The software that i have is LabVIEW Version 8.5. So as what you say is i need to reinstall my the whole LabVIEW PDA Module and all start again? Then i know that for PDA Module i need to download Virtual PC2007.But what else i still need to install? The Window Mobile 5.0 emulator and the rest softwares is it include in the LabVIEW PDA Module software package? If not, please let me know which software i still have to download? Then i go and check the software status that i have and the lincense status is as shown in attach files.Thanks for giving your time and help me.
With Regards
Nyan Lin
Attachments:
Software status.JPG 72 KB
Lincense.JPG 98 KB -
How to use ejbs for accessing Function Module.
Hi,
I want to call ABAP function module using ejb(Since I want to expose them as web service on different server). I know how to do that using Models, but dont know how to go ahead using ejbs.
Could you please guide me on this?
Regards,
Abhijeet.Hi,
In another thread with a similar question I found these references:
/people/kathirvel.balakrishnan2/blog/2005/07/26/remote-enable-your-rfchosttoip-to-return-host-ip-to-jco
Re: interfacing SAP with an existing java applications
And this code example:
HashMap result = new HashMap();
Object ret = new Object();
JCO.Client mConnection = null;
mConnection = getConnection();
JCO.Repository mRepository;
mRepository = new JCO.Repository("R3", mConnection);
JCO.Function function =
createFunction("Z_ISA_GET_ORDER_ITEM_INFO", mRepository);
function.getImportParameterList().setValue(orderNum, "ORDER");
if (function != null) {
mConnection.execute(function);
JCO.Table codes = function.getTableParameterList().getTable("INFO");
for (int i = 0; i < codes.getNumRows(); i++) {
codes.setRow(i);
int tmp = new Integer(codes.getString("POSNN")).intValue();
String tmpStr = new String(Integer.toString(tmp));
ret = result.put(tmpStr, codes.getString("VBELN"));
} else {
System.out.print("Fxn call failed for Z_ISA_GET_ORDER_ITEM_INFO");
JCO.releaseClient(mConnection);
Good luck,
Roelof -
Where used list for RFC function module
Hi All,
Is it possible to list where the RFC enabled FM is getting called? I mean in which all system (say RFC present in some Dev system, it might be called somewhere in other systems other than in Dev systems) RFC is getting called.
Kindly suggest.
Thanks,
AshwiniHi Ashwini,
Is it possible to list where the RFC enabled FM is getting called?
Yes, there are several ways to do it, if you just need the list of the systems that call your RFC,
1) look up the technical designs of the interfaces(the ones which use RFCs) that are present in your project.
2) Enable RFC trace on your system and go through the trace list, you can get help from your BASIS team.
3) If you have a middleware through which all the interfaces are handled then you can work with the middleware team to identify the source systems which call your RFC.
4) Add a line in your RFC to update a Z Table on when and from which UID it was called, based on this you can identify the source.
5) You can add a bug so that your RFC shortdumps, the team from the source team will be sure get in touch with you in this case...just kidding, but a possible solution at the same time.
Regards,
Chen -
Using DSP Module to control C6713 DSK
Hi,
I am doing an Automatic Noise Cancellation design, and am using the LabView DSP Module and downloading code to a TI C6713 DSK. I need 1 microphone to measure ambient noise, and a 2nd microphone to measure my desired speech signal.
I would like to use the MIC_IN input for one microphone, and the LINE_IN input for the 2nd microphone. The DSK has a stereo codec, so I would like to have one channel be the audio from 1 mic and the 2nd channel be the audio from the 2nd mic.
First, is it even possible to do this? If so, how do you use LabView to configure the DSK so that each channel represents the audio from 1 mic?
Thanks for any help.You definitely can target the TI TMS320C6713 DSK with LabVIEW. You can create a DSP project in LabVIEW 8.2.1 that will add all available I/O to the project. You can then use this I/O to bring in your signals to do any LabVIEW analysis available for that target. As for how you the I/O actually works, TI may be the best people to contact for that. Here is a few links where I found some of this information.
http://zone.ni.com/devzone/cda/tut/p/id/3564
http://zone.ni.com/devzone/cda/tut/p/id/3501
http://zone.ni.com/devzone/cda/tut/p/id/3594
http://zone.ni.com/devzone/cda/tut/p/id/5239
Daniel Eaton
National Instruments
Systems Engineering
Embedded and Industrial Control -
An arbitrary waveform generator using the DSP Module
Hi Guys,
Just got my hands on LabView and the DSP Module, and having a bit of fun atm. Great products. I'm currently using the TI DSK6416, and was wondering if there was a labview model/example of arbitrary waveform generation using this...? Perhaps using a DDS method or something similar?
Thanks in advance...
GibbGodDGibbGodD,
Hello!
There are quite a few Waveform Generation VIs within Labview, including the Simulate Arbitrary Signal Express VI and the Arbitrary Wave VI. Unfourtuantly, these are not available within the DSP Module. There is a special group of Embedded Signal Generation VIs for the DSP Module, of which one is the Simulate Signal. Take a look at these VIs as perhaps you could use them to build the waveform you are looking for.
To answer your question, I wasn't able to locate a specific example that matched what you were looking for, but if you to Help >> Find Examples >> Toolkits and Modules >> DSP from within LabVIEW you should be able to find some great DSP examples. Particular, the example project "Variety of Signal Types.lvproj" shows the different types of signals the DSP target can generate.
The majority of Arbitrary Waveform Generation information that I was able to find is all related to our Function Generators but not for the devices supported for the DSP Module.
Best of Luck!
Ben Sisney
FlexRIO V&V Engineer
National Instruments -
I want Labview DSP hardware for program download
I want to know that wether the target specified for the Labview DSP module can be used in some other board by taking out chip from the hardware download board. Also I want to know how i can download the program created in Labview DSP module to the target chip. Is some hardware and cable available for this.
Hi Ankit,
Please refer to the following KB to see which targets are supported by LabVIEW DSP.
http://digital.ni.com/public.nsf/websearch/AF9886D62684C05D86257101007F4647?OpenDocument
A USB cable is used to connect to those boards so that the user can download the code to the embedded target. Currently, the LabVIEW DSP Module does not support custom DSP hardware even if the hardware has similar or identical peripherals to the supported targets.
Hope that helps!
Kalin T.
National Instruments -
Hello. I am working with Labview DSP Module to program DSK 6713 board. I take samples of microphone imput and I need to know what is the framesize maximum that I can use. Are there some way to increment this framesize? For example, importing custom C code into Labview DSP Module.
Regards.Hi All,
I have done some further work on this, and have discovered that with the example code given in the help file on the Block Wizard provided at ( ftp://ftp.ni.com/support/labview/labview_dsp/ImportingCCode.zip) , I can make a new AI block, and the sub-VI runs correctly and I can see whatever is applied to the DSK analogue input on the screen in a LabVIEW graph, but when I connect the new AI generated from the code given in the help to the default AO it doesn't run (see attached zip file containing sub-VI, test VI which calls it).
Can anybody help me with this?
Is the Importing C Code to DSP module supported?
Thanks,
Attachments:
AI VI made with Block Wizard.zip 88 KB -
New to LV DSP Module,ask about the supported functions
Hi all,
I plan to use LV DSP module, but I am not sure if this module supports legacy LV functions. I looked at its manual, it only mentions DSP module supports many DSP specific functions.
Does it support linear algebra functions like eigenvalue/vector calculation in the target DSP device?
Thanks !
SunnyHi Sunny,
No, I don't think some origianl LV functions are still available with DSP targets. Because some mathematical functions are calculation-consuming, their algorithm need to be specially optimized when transformed to DSP targets. Please also notice that the LabVIEW DSP module only supports several targets including the
NI SPEEDY-33, Texas Instruments TMS320C6713 DSK and TMS320C6711 DSK.
Zheng -
Where can I get driver for Tektronix2440 Oscilloscope for LabView 5.0 version?
Our Lab have LabView 5.0 version and VI for Tektronix2440 Scope for LabView 3.1 version. For our switching experiments we need in newer driver for Tek2440 to work with LV 5.0.
The main problem is our A/D converter hasn't a memory and so we can not get the data fast enough (data acquisition is not greater than 26 scans/sec. 1000 scans/sec and greater are required). We are solving this problem by writing the data to oscilloscope and then reading them to LV.
Thank you.
Attachments:
DAQ_rate.JPG 24 KBHi Gen,
I looked around for LV drivers for the 2440. The "oldest" I could find is LV6.
You may have to write some of the drivers using instument commands. A bit tedious, but it can get you there.
Did you try contacting Tektronix and find out if they do have LV5 drivers or DLL's that you could use. Yes, I know that it is discontinued and no longer supported... Try anyway...
-nothing ventured, nothing gained-- It doesn;t hurt to try.
-JLV- -
I am trying to do a histogram in LabView DSP module. First, is it possible? If so can it be done? Any advice would greatly be appreciated.
Hi,
There are great examples of File I/O in our Example Finder, accessed at Help»Find Examples. Expand the Fundamentals tab, then the File Input and Output tab, and choose an example that works for your application. "Write to Text File" is a great place to start. Implementing this into your existing code or vice versa should allow you to accomplish your goals. Happy coding!
Amanda Howard
Americas Services and Support Recruiting Manager
National Instruments -
Dears,
I need the DSP Module For LabVIEW 2011, is it Available? and where can I Download it ?
Thanks
Ahmed AbdulbakyHi Ahmed,
I posted this in error. I did not see that Ryan had already answered this.
Ryan is correct. The latest version is 8.6
You can download the latest version of the DSP module from ni.com/downloads. The exact URL is shown below:
http://search.ni.com/nisearch/app/main/p/bot/no/ap/tech/lang/en/pg/1/sn/ssnavdl/q/dsp/#
I hope this information helps.
Regards,
James D.
Applications Engineer
National Instruments
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