How can I generate clock in labview 8.0 and use it for programming and for hardware?

I have to generate clock for synchronizing hardware with my program, so I need to to use this clock inside the program and as an output from A/D. The clock frequency has to be aproximately 3kHz.

*Insufficient information*
First of all, i suspect that you are somehow believing that software can be timed by external signals. That is normally not the case, at least if you are using a standard Desktop PC.
So please do not mix software with "data acquisition". Data acquisition can be configured to be "buffered" which means externally clocked. You can use the onboard clock for this or (in case of most hardware) any other TTL compatible "clocksource". This will ensure a clocked acquisition of the samples. The samples are then transferred to your PC and stored there as an array. So your program has to fetch the data "in time", but not "hardwaretimed".
So please share some more information about:
-What is your task
-What is the hardware you are using
-Software versions (driver, LV)
-What is your current approach
thanks,
Norbert
[Edit] There is a difference between "softwaretimed" and "hardwaretimes" acquisition. What i described in my reply would be the hardwaretimed acquisition, which i would say make the majority of all acquisitions. Softwaretimed acquisition describes a single point acquisition where a single sample is requested by the software. So each time the software requests a new sample, it will be acquired. This method heavily depends on the performance of the systems and does most often not exceed few kHz (maybe 2 or 3). Furthermore, if you do not have a realtime or fpga, the acquisition if not deterministic which means that the samples are not acquired in a "static timeframe"; the delta t is not constant.....
Single point acquisition is only worth for very slow signals (most often up to 1kHz) or control circuits.
Message Edited by Norbert B on 12-01-2009 04:11 AM
CEO: What exactly is stopping us from doing this?
Expert: Geometry
Marketing Manager: Just ignore it.

Similar Messages

My airport extreme has connected to a Tplink router, i set my AE in Create network, so i get a problem of Double NAT. How can i repair this probleme because i have to use TPlink for my IP TV and i want to use AE to creat my network and the guest NW.

my airport extreme has connected to a Tplink router, i set my AE in Create network, so i get a problem of Double NAT. How can i repair this probleme because i have to use TPlink for my IP TV and i want to use AE to creat my network and the guest NW. If we don't have a solution for this question, can i set my AE to use the IP TV and how??? I'm using a 4th Airport extreme

No, not unless it is simply a network connection.
How is your IPTV being provided.. if it is using a separate vlan or separate vpi/vci in the adsl connection. Who is your ISP?
Is the TP-Link ADSL?
Is the IPTV using a separate voice channel on adsl?
Or a different vlan.
Sorry but it is something where a definite answer is not possible unless you provide all the details.
The setups are unique to each ISP around the world..
Here is one for our local ISP.
http://www.avenard.org/iptv/Setup.html
He has a section on getting this working with apple router over wireless.. look
http://www.avenard.org/iptv/IPTV_and_Wireless.html
Google around and see if other people have had success.. the whole setup is tricky.. and it is hard if nobody has used it who actually understands networking.

How can I assign 'Call Contact' in Reminders app without using Siri for it?

Hi!
Just like the title states, I was wondering how can I assign a click to call a contact in Reminders without using Siri for it.
When I enter a reminder "Call mom" for instance (in the Reminders app), it does not sync with the same contact in my Contact list (for Click to Call), but it does when I use Siri for it. Anyway to resolve that?
Thanks in advance.

Hi,
If the config the the module you are using doesn't support a certain type of form them you have two options;
- Take a copy of the print program and change it to use the desired type of form
- Create a type of form that is supported and use that to call your form.
Regards,
Nick

I NEED HELP FAST!!! how can i activate wi-fi if i want to use that for facebook apps instead of wasting my data?

i want the 200 mb plan for my iphone and wanted to know if instead of using safari i can use apps such as facebook or tumblr without using up my data. i got the asnwer that i can avoid that by using wi-fi, but how does that whole thing work?
sorry i am a bit new at this, and i need help fast!
THANK YOU!

hookedonlerman wrote:
but will that replace the use of using up data? (wifi & 3G)
It sounds as if you don't really understand what "using data" means. Data is not something different from WiFi and 3G, it's something sent over WiFi and 3G. Think of data as water and WiFi and 3G as types of pipes. Some apps need to send and receive data to work. That data can be sent or received in different ways. It can be sent over WiFi or 3G. Both official iPhone carriers in the U.S. have metered data plans. It's sounds as if you're talking about AT&T's 200 mb data plan. WiFi is not provided by your cellular carrier. You can have WiFi from your Internet Service Provider at home or you can access free WiFi at places like McDonalds or Starbucks or paid WiFi at places like airports.
If you have WiFi turned on on your phone and WiFi is available, the phone will default to WiFi. WiFi is faster than 3G and generally not metered, and is sometimes even free. If you are out of range of WiFi, you would be using 3G to send and receive your data. With a metered plan, you need to keep an eye on how much you are using because if you go over your allowance, you will be charged additional fees.

How can i generate variable pulse waveform using PWM outputs of 7344.

Hi
I want to generate a pulse waveform using the pwm outputs of 7344. How can i very the frequency of the PWM programatically.

If you are programming in LabVIEW, you can use the Configure PWM Output VI to set up the frequency of the pulse train. If you are in any other language, you can use the NI-Motion API and call the flex_configure_pwm_output function to achieve the same result. Please refer to the NI-Motion C reference help that gets installed with the NI-Motion 6.0 driver or follow this link:
http://digital.ni.com/manuals.nsf/websearch/92003B670CC3CB3F862567C800755B95?OpenDocument&node=132090_US
for more information on this function.

How can I Generate two different reports from single execution of Test cases in NI teststand

Hi,
My requirement is to generate two different reports from NI teststand. One for the Logging of error descriptions and the other report is by default generated by the Teststand. How can i generate a txt file that contains error descriptions other than that mentioned in the default report?
Solved!
Go to Solution.

Do you need to do that just for these two sequences but not for other sequences? I don't see a problem to use SequenceFilePostStepRuntimeError. Create this callback in both sequence files and configure them to log into the same file. SequenceFilePostStepRuntimeError callback is called after each step of the sequence file if it has runtime error. You can access the calling step error information via RunState.Caller.Step.Result.Error property. Take a look to attached example.
The "other way" is useful if you need to log errors not for every step of the sequence file, but for some of them. This is more complex, because you need to create a custom step types for these steps. For the custom step you can create substeps (post-step in your case) which will be executed every time after step of this type executed. Then, this is you job to determine if error happened in the step, acces to step's error information is via Step.Result.Error property.
Also, be aware that step's post-expression is not executed in case of error in the step.
Sergey Kolbunov
CLA, CTD
Attachments:
SequenceFilePostStepRuntimeError_Demo.seq ‏7 KB

How can I generate SSL Keys from a Oracle 9iAS server version 1.0.2.2.0

How can I generate SSL Keys for use on Oracle 9iAS server
version 1.0.2.2.0. I have tried using the open_ssl method but
was unsuccessful.

<?xml version="1.0" encoding="UTF-8" ?>
<nodes>
<node>
<category_id>3</category_id>
<parent_id>2</parent_id>
<name>Mobile</name>
<is_active>1</is_active>
<position>1</position>
<level>2</level>
<children>
<node name="Nokia" category_id="6" parent_id="3" is_active="1" position="1" level="3">
<node name="Nokia N79" category_id="7" parent_id="3" is_active="1" position="2" level="3" />
<node name="Nokia N95" category_id="7" parent_id="3" is_active="1" position="2" level="3" />
<node name="Nokia N97" category_id="7" parent_id="3" is_active="1" position="2" level="3" />
</node>
<node name="Samsung" category_id="7" parent_id="3" is_active="1" position="2" level="3">
</node>
</children>
</node>
<node>
<category_id>4</category_id>
<parent_id>2</parent_id>
<name>Laptop</name>
<is_active>1</is_active>
<position>2</position>
<level>2</level>
<children></children>
</node>
<node>
<category_id>5</category_id>
<parent_id>2</parent_id>
<name>Monitor</name>
<is_active>1</is_active>
<position>3</position>
<level>2</level>
<children></children>
</node>
<node>
<category_id>8</category_id>
<parent_id>2</parent_id>
<name>Camera</name>
<is_active>1</is_active>
<position>4</position>
<level>2</level>
<children></children>
</node>
</nodes>
Is this correct format to create dynamic menu?

How can I generate a log-file of my slideshows?

For each of my slideshows I would like to generate a „list of all slides“ with (for example) the name or number of the slide, if possible the duration of the slide and of the transition, eventually with the kind of transition, .....
How can I extract these information from the system and generate a list, that I can save, print and complete with comments or individual information?
Thank you for help

PSE does not provide such a feature.
~V

How can we generate the reports in html or text file formats?

Hi,
Is there any package that can help in creating HTMLDB reports in .txt files or .html files? (Similar to TEXT_IO in Oracle Forms)
How can we generate the reports in html or text file formats from HTMLDB?
Thanks in Advance
Renjith

Hello all.
Bi Publisher is great, but has a very high price tag. It's even more expensive than Forms & Reports Services. We are considering APEX to replace Forms & Reports on the web, but the reporting limitations are still a problem.
I wonder if there is another option.
Thanks

I have a dll file, i want to send messages from this to the device ,how can i do it in labview

Hi,
I am a new user of labview.
I got Vector Card, DUT, DC Power supply and .dll file. Hoe can i connect dll file and hoe to senf the information to the device,
i want to send/receive a message to that device . and measure temperature , humidity of the device. is any one can help?
i have a .dll file, i want to send messages from this file to the testing device ,how can i do it in labview?

Dear Sandy,
How are your DUT, Vector Card and your PC connected?
What vector card is this?
There are a huge amount of Knowledge base articles that you can access from www.ni.com. Simply go to the website and do a search on dll, etc.
There are also a lot of example problems shipped with LabVIEW that will be very helpful for you to learn from and to modify to meet your needs. Go to File»Find Example ....
There are LabVIEW classes taught locally as well that are very helpful. If you're interested I can arrange for you to receive an email with info about it.
Sincerely,
Sammy Z.

How can we generate the report of backup,tablesapcefrom OEM / RMAN

How can we generate the report of backup status,tablesapce(usedf,free space) for all the databases from OEM / RMAN
1.)we need generate the report of tablespace used,free, archive...
2.)How can we generate the Backup status report also

user13584223 wrote:
How can we generate the report of backup status,tablesapce(usedf,free space) for all the databases from OEM / RMAN
1.)we need generate the report of tablespace used,free, archive...There are DBA_* views that expose the necessary information. They are documented in the Reference Manual.
2.)How can we generate the Backup status report alsoThere are rman commands that give that. They are documented in the Backup and Recovery User's Guide.
=================================================
Learning how to look things up in the documentation is time well spent investing in your career. To that end, you should drop everything else you are doing and do the following:
Go to [url tahiti.oracle.com]tahiti.oracle.com.
Locate the link for your Oracle product and version, and click on it.
You are now at the entire documentation set for your selected Oracle product and version.
BOOKMARK THAT LOCATION
Spend a few minutes just getting familiar with what is available here. Take special note of the "books" and "search" tabs. Under the "books" tab (for 10.x) or the "Master Book List" link (for 11.x) you will find the complete documentation library.
Spend a few minutes just getting familiar with what kind of documentation is available there by simply browsing the titles under the "Books" tab.
Open the Reference Manual and spend a few minutes looking through the table of contents to get familiar with what kind of information is available there.
Do the same with the SQL Reference Manual.
Do the same with the Utilities manual.
You don't have to read the above in depth. They are reference manuals. Just get familiar with what is there to be referenced. Ninety percent of the questions asked on this forum can be answered in less than 5 minutes by simply searching one of the above manuals.
Then set yourself a plan to dig deeper.
- Read a chapter a day from the Concepts Manual.
- Take a look in your alert log. One of the first things listed at startup is the initialization parms with non-default values. Read up on each one of them (listed in your alert log) in the Reference Manual.
- Take a look at your listener.ora, tnsnames.ora, and sqlnet.ora files. Go to the Network Administrators manual and read up on everything you see in those files.
- When you have finished reading the Concepts Manual, do it again.
Give a man a fish and he eats for a day. Teach a man to fish and he eats for a lifetime.
=================================

How can I generate a table of contents from bookmarks

How can I generate a Table of Contents from bookmarks in Adobe Acrobat XI?

Something to try.
Rick Bostein provided a "Create Bookmark Report" Acrobat Action.
With this report as a PDF you could insert it at the start of your PDF document to serve as a "TOC".
Go here:
https://acrobatusers.com/actions-exchange
Scroll down some.
Be well...

How can I generate javadoc in PDF format?

Hi,
How can I generate javadoc in PDF format?
Thanks,
Fayezin

HTML to PDF with Java, using OpenOffice.org - example here: [http://www.dancrintea.ro/html-to-pdf/|http://www.dancrintea.ro/html-to-pdf/]
You can use OpenOffice.org, running as a server and command it remotely for document convertion.
Besides HTML to PDF, there are also possible other convertions:
doc --> pdf, html, txt, rtf
xls --> pdf, html, csv
ppt --> pdf, swf
Code example:
import officetools.OfficeFile; // this is my tools package
FileInputStream fis = new FileInputStream(new File("c:/test.html"));
FileOutputStream fos = new FileOutputStream(new File("c:/test.pdf"));
// suppose OpenOffice.org runs on localhost, port 8100
OfficeFile f = new OfficeFile(fis,"localhost","8100", true);
f.convert(fos,"pdf");
-----------------------------------------------------------------------------------------------------------------------------------------

How can we generate result set report?

how can we generate result set report ?means the out put of one query be the input of another query?how it is?

Hi
You have to use APD ( analysis process designer) to use results of one query as the input for the other queries.
Check this link
http://help.sap.com/saphelp_nw70/helpdata/en/49/7e960481916448b20134d471d36a6b/frameset.htm
Regards

How can we generate a usage report

Hi Friends,
As my application is going to live, for that i want to usage report.
how can we generate a usage reopts ?
Thanks in advance

Hi,
Take a look at Usage Tracking; http://apex.oracle.com/pls/apex/f?p=44785:24:370475959673014::NO:24:P24_CONTENT_ID,P24_PREV_PAGE:4152,2
Good Luck,
Daan Bakboord
http://obibb.wordpress.com

How can I generate clock in labview 8.0 and use it for programming and for hardware?

Similar Messages

Maybe you are looking for