Block Peak Detection and Display

I am doing a project on a spike check automation program in Labview. I am trying to detect the peaks and valleys from a probe test on a wafer.The probes are attached to the wafer and connect to an oscilloscope. Right now finding the peaks and valleys are done manually but take a lot of time from one pin.
My program has to optimally run for 20 seconds and, at every interval, of let’s say 20microseconds, has to take the worst case scenario for the peaks and take the screenshot from the oscilloscope and save it until the worst case scenario in the next block on 20 microseconds until the 30 seconds are up.
I am using LV 2010 and I don’t have experience with LV before. I have researched and found a VI called waveform peak detector which seems helpful but I am not sure how to save a screenshot at each interval or block.
I am also unsure on what to put in a loop so my program can run continuously for 30 seconds without stopping. I also have the instrument drivers for my particular oscilloscope so I can control the scope from my computer and LV program.
Any help is appreciated and thanks in advance for your assistance.

Share for care... oops share for cure...!!
please share your code or more info..!!
I am not allergic to Kudos, in fact I love Kudos.
Make your LabVIEW experience more CONVENIENT.

Similar Messages

Peak Detection and Display of TDMS file of 4 channels

The Peak Detection and Display sample VI in the NI Example finder is exactly what I am looking for but I would like to use a recoded TDMS file as its input. The TDMS file is a 4 channel data file.
Does someone have an example code on how to do this?
ERB

Hi
I found an example in exampler finder called Read Channel Groups (TDMS).vi, which seems to plot data for four channels written in a TDMS file.
Its also attached.
Kind Regards,
Kind Regards
James Hillman
Applications Engineer 2008 to 2009 National Instruments UK & Ireland
Loughborough University UK - 2006 to 2011
Remember Kudos those who help!
Attachments:
Read Channel Groups (TDMS) forum.vi ‏20 KB

2 Channel peak detection and value look up

Hi all,
I have 2 different sin waves going into channel 1 and channel 2 of an oscilloscope. What I'm trying to do is:
1. From Channel 1's input determine the time when peak values occur and save them to an array
2. Then find out what channel 2's voltage output is at times determined from step 1.
I started doing this project by only using 1 channel where I was able to extract the y data as well as plug it into peak detection.vi.
However after I merge the two channels together and proceed like I did with 1 channel labview shows disconnected wires due to data incompatability.
Any help would be greately appreciated on how I can locate channel 1's peak times and plug those time values to determine output values for channel 2.
Attached is
1. The single channel peak detection (which works)
2. 2 channel peak detection (the .vi I need help on)
Attachments:
Single Channel Peak Detection.vi ‏33 KB
2 channel peak detection.vi ‏22 KB

The VI is broken because you are connecting an array of waveforms with VI's that are asking for a single waveform. You need to use Index Array to break out one or the other waveform to feed to the other VI's.

Peak Detection and Integration

I have been trying to design a reliable way to detect and integrate seven reactor zone temperature profiles. First, I tried to modify the peak 3.0 example to suit my needs, but alas, it does not work as envisioned (i.e it never detects the correct baseline with my data but it works with the peak 3.0 data set). Does anyone know of a reliable way to detect and integrate peaks of varying length in Labview? I will attach a copy of my vi in hopes of a solution. I attached a Savinsky-Golay smoothed experimental data set of one reactor zone. Thanks for your time!
Attachments:
Peaks_Example_3.0(modified).vi ‏137 KB
time_peak3data_exp_data_.txt ‏38 KB

In general, I've found working with either the 1st or 2nd derivatives to be more reliable when doing peak searches.
2006 Ultimate LabVIEW G-eek.

Peak detection and appropriate response

I have been working on a wireless vital sign monitor. I have signals coming through 8 bits A/D entering the microcontroller and serially sent to Labview where i do my analysis.
I am trying to implement the below algorithm:
1) Detect the peaks above 3 volts (my range of signals is between 0-5 V) for an interval of 6 seconds.
2) For every time I detect a peak, increment counter (Counter starts at 0 and ends at 6)
3) Multiply the total number of detected peaks by 10 which gives beats / minute.
I was initailly trying to accomplish this using the microcontroller (Basic Stamp 2) but have not been succesfull and am therefore wondering if there is an easier way to do this in Labview.
I want to accomplish this in real time. Can anyone suggest an approach??
Thanks

There are two vis that can be combined :
- the threshold peak detector (in the Analyse/Signal processing/Time domain sub-palette), gives the number of peaks above a threshold value, in an array of data;
- the DataqueuePtbyPt in the Analyse/Point by Point/Other functions sub palette) that builds a queue (array) of a given length. This second vi can be used to collect points from your microcontroller ADC.
Have a look at the attached vi.
CC
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...
Attachments:
Beat Count2.zip ‏23 KB

Detecting and displaying images inside SWF from same web page its embedded in

Great forum and appreciate the great help I've been getting
here. I am getting a bit more used to Flex now - the collection of
controls is pretty amazing.
I am trying to create an ImabeBrowse.SWF which when embedded
on a web page, it would then automatically show thumbnails of all
the images from that same page. Has anyone done anything like this
in AS3?
From documentation, it sounds like I would need to write some
Javascript which would traverse the HTML's DOM to get all image
URL's, and then pass these into the SWF?
If one of you experts could share some code, that'd be
greatly appreciated!!

Asking for more.........
Yes, I do agree there is no need to create an additional DAD when we want to call a procedure from infrastructure database (iasdb) because giving grant to public or portal_public schema is enough.
But why is it that even after following the right way to create a DAD for HR schema in infrastucture database fails to call a procedure?
The error which I get is:-
Database Log In Failed
TNS is unable to connect to destination. Invalid TNS address supplied or destination is not listening. This error can also occur because of underlying network transport problems.
Verify that the TNS name in the connectstring entry of the DAD for this URL is valid and the database listener is running.
The details for rajhr DAD
Database Connectivity Information
Database Username : HR
Database Password : hr
Databse Connection String : <blank>
I have left database connection string blank as the infrastructure database is local.
Is it that I cannot have two DAD for a local database eventhough they point to two different users?
Med Vennlig Hilsen
Rajesh

How to use peak detection in labview to detect peaks from data acquisition information

Hi
I am a university engineering student who is working in a team to develop a coin detector, its purpose is to recognize different coinage and detect fakes.
For this we are using LabVIEW 8.5.1. I am relatively new to labview and have had no experience of using to before. We are trying to integrate four voltage signals produced by an electromagnet, straingauge, optical sensor and a proximity sensor. We have already developed signal conditioning for these tests and now wish to put them into labview.
Our plan is to use peak detection on each of the tests so that labview can detect peaks which correspond to different coin types, provided they meet set criteria for each coin. Then to combine these either using logic or mathscript to produce a Boolean output for each coin.
One of our advisors helped us develop a peak detection program for a simple simulated sine wave however we are struggling to adapt this for data acquisition information and itegrate it with mathscript and to be honest it does not make much sense. I have attached the program below. Thanks in advance for your assistance.
Attachments:
Strain 2.vi ‏25 KB

Chris,
Here are several ways to help you get started with peak detection:
1. On your functions palette, you can search for "peak detect" and you'll find several different variations of VIs that will do peak detection.
2. You may also want to take a look at this tutorial: Peak Detection Using LabVIEW and Measurement Studio
3. There's an example in the example finder called "Peak detection and display" that will probably be useful.
Hope this helps,
Misha

Peak detection

Hello,
I am currently using Labview 8.0. In that i am facing problems in detecting the peaks of an acquired waveform graph. I tried using the threshold peak detector.vi in the function palette but it doesnot work for me.I also tried filtering the waveform and detecting the peaks but still there was no result. I have uploaded the text file of my waveform here. Can anyone tell me how to detect the peaks of this waveform.
Regards,
Nitzy
Attachments:
hhaft.TXT ‏723 KB

I guess the "Peak Detection and Display" example will give you a push in the right direction. But I have to admit I did not look at your example file
Here is some useful tips for the Labview beginner (we have all been there some time)
1)Then starting a new Labview session enable context help (Ctrl+h). Do not be afraid to use the detailed help option
2)Then stuck, go to help in the toolbar then select find examples
Besides which, my opinion is that Express VIs Carthage must be destroyed deleted
(Sorry no Labview "brag list" so far)

How to Block Themes, Wallpapers and other Display Customizations (DPI, Scaling, Window Color and Appearance) with USMT 5.0?

I'm doing something wrong, but I can't figure out what.
I've read some great write ups on the subject:
USMT Custom XML the Free and Easy Way
USMT
4.0 Custom Sample - Blocking Wallpaper and Theme Migration from Windows Vista and Windows 7
Blocking
Wallpaper Migration with USMT (or: you are a jerk)
and used part of the XML in their example, but the wallpaper, themes and other display customizations are still coming over. Now I'm trying to use MigXmlHelper.DestinationPriority() but really its just my last ditch effort.
From an elevated command prompt in C:\USMT\amd64\, I'm executing:
scanstate.exe E:\USMTBackup /config:nothemeuiconfig.xml /i:MigApp.xml /i:MigDocs.xml /i:MigUser.xml /i:unconditionalexclusions.xml /i:blockwallpaperandthemev3.xml /i:getlocalpsts.xml /i:inclusions.xml /ui:domain1\user1 /ue:*\* /vsc /c /o /nocompress /localonly /v:13 /l:\\path\to\scanstate.log /progress:\\path\to\scanstate_progress.log /listfiles:\\path\to\scanstate_listfiles.log
The blockwallpaperandthemev3.xml contains:
<?xml version="1.0" encoding="UTF-8"?>
<migration urlid="http://www.microsoft.com/migration/1.0/migxmlext/blockwallpaperandthemev3">
<component type="Documents" context="User">
<displayName>Block Wallpaper, Theme and Display Registry Settings</displayName>
<role role="Data">
<rules>
<unconditionalExclude>
<objectSet>

<pattern type="Registry">HKCU\Control Panel\Appearance\* [*]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [Pattern]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [SCRNSAVE.EXE]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [TileWallpaper]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [WallPaper]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [WallPaperStyle]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop\Colors [*]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop\WindowMetrics [*]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Internet Explorer\Desktop\General [WallpaperSource]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Wallpapers\* [*]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Windows\CurrentVersion\ThemeManager\* [*]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Windows\CurrentVersion\Themes\* [*]</pattern>
</objectSet>
</unconditionalExclude>
<merge script="MigXmlHelper.DestinationPriority()">
<objectSet>
<pattern type="Registry">HKCU\Control Panel\Appearance\* [*]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [Pattern]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [SCRNSAVE.EXE]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [TileWallpaper]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [WallPaper]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [WallPaperStyle]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop\Colors [*]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop\WindowMetrics [*]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Internet Explorer\Desktop\General [WallpaperSource]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Wallpapers\* [*]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Windows\CurrentVersion\ThemeManager\* [*]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Windows\CurrentVersion\Themes\* [*]</pattern>
</objectSet>
</merge>
</rules>
</role>
</component>

<component type="Documents" context="User">
<displayName>Block Wallpapers and Theme Files</displayName>
<role role="Data">
<rules>
<unconditionalExclude>
<objectSet>
<content filter="MigXmlHelper.ExtractSingleFile(NULL, NULL)">
<objectSet>
<pattern type="Registry">HKCU\Control Panel\Desktop [SCRNSAVE.EXE]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [WallPaper]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Internet Explorer\Desktop\General [WallpaperSource]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Windows\CurrentVersion\Themes\* [*]</pattern>
</objectSet>
</content>
</objectSet>
</unconditionalExclude>
<merge script="MigXmlHelper.DestinationPriority()">
<objectSet>
<content filter="MigXmlHelper.ExtractSingleFile(NULL, NULL)">
<objectSet>
<pattern type="Registry">HKCU\Control Panel\Desktop [SCRNSAVE.EXE]</pattern>
<pattern type="Registry">HKCU\Control Panel\Desktop [WallPaper]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Internet Explorer\Desktop\General [WallpaperSource]</pattern>
<pattern type="Registry">HKCU\Software\Microsoft\Windows\CurrentVersion\Themes\* [*]</pattern>
</objectSet>
</content>
</objectSet>
</merge>
<unconditionalExclude>
<objectSet>
<pattern type="File">%CSIDL_LOCAL_APPDATA%\Microsoft\Windows\Themes\* [*]</pattern>
<pattern type="File">%CSIDL_APPDATA%\Microsoft\Windows\Themes\* [*]</pattern>
<pattern type="File">%CSIDL_WINDOWS%\Resources\Ease of Access Themes\* [*]</pattern>
<pattern type="File">%CSIDL_WINDOWS%\Resources\Themes\* [*]</pattern>
<pattern type="File">%CSIDL_WINDOWS%\Web\Wallpaper\* [*]</pattern>
</objectSet>
</unconditionalExclude>
<merge script="MigXmlHelper.DestinationPriority()">
<objectSet>
<pattern type="File">%CSIDL_LOCAL_APPDATA%\Microsoft\Windows\Themes\* [*]</pattern>
<pattern type="File">%CSIDL_APPDATA%\Microsoft\Windows\Themes\* [*]</pattern>
<pattern type="File">%CSIDL_WINDOWS%\Resources\Ease of Access Themes\* [*]</pattern>
<pattern type="File">%CSIDL_WINDOWS%\Resources\Themes\* [*]</pattern>
<pattern type="File">%CSIDL_WINDOWS%\Web\Wallpaper\* [*]</pattern>
</objectSet>
</merge>
<unconditionalExclude>
<objectSet>
<script>MigXmlHelper.GenerateDrivePatterns ("\Users\*\AppData\Local\Microsoft\Windows\Themes\* [*]","Fixed")</script>
<script>MigXmlHelper.GenerateDrivePatterns ("\Users\*\AppData\Roaming\Microsoft\Windows\Themes\* [*]","Fixed")</script>
<script>MigXmlHelper.GenerateDrivePatterns ("\Windows\Resources\Ease of Access Themes\* [*]","Fixed")</script>
<script>MigXmlHelper.GenerateDrivePatterns ("\Windows\Resources\Themes\* [*]","Fixed")</script>
<script>MigXmlHelper.GenerateDrivePatterns ("\Windows\Web\Wallpaper\* [*]","Fixed")</script>
</objectSet>
</unconditionalExclude>
<merge script="MigXmlHelper.DestinationPriority()">
<objectSet>
<script>MigXmlHelper.GenerateDrivePatterns ("\Users\*\AppData\Local\Microsoft\Windows\Themes\* [*]","Fixed")</script>
<script>MigXmlHelper.GenerateDrivePatterns ("\Users\*\AppData\Roaming\Microsoft\Windows\Themes\* [*]","Fixed")</script>
<script>MigXmlHelper.GenerateDrivePatterns ("\Windows\Resources\Ease of Access Themes\* [*]","Fixed")</script>
<script>MigXmlHelper.GenerateDrivePatterns ("\Windows\Resources\Themes\* [*]","Fixed")</script>
<script>MigXmlHelper.GenerateDrivePatterns ("\Windows\Web\Wallpaper\* [*]","Fixed")</script>
</objectSet>
</merge>
</rules>
</role>
</component>
</migration>
I generated a config.xml called nothemeuiconfig.xml and changed this:
<component displayname="Microsoft-Windows-themeui" migrate="yes" ID="http://www.microsoft.com/migration/1.0/migxmlext/cmi/microsoft-windows-themeui/microsoft-windows-themeui/settings"/>
To this:
<component displayname="Microsoft-Windows-themeui" migrate="no" ID="http://www.microsoft.com/migration/1.0/migxmlext/cmi/microsoft-windows-themeui/microsoft-windows-themeui/settings"/>
But themes, wallpapers - everything - still come over.
Opened a case with Microsoft, sent them:
the XML's I'm using
the command I used to generate the config.xml
the command I used for scanstate
the log files generated by scanstate
the command I used for loadstate
the log files generated by loadstate
Summary result of the MS case:
After much review & scrutiny, the command line and XML files are syntactically correct and rules are sound.
The articles I referenced in the ticket are indeed old and speak of an older version of USMT, so I can accept the possibility that something may have changed between USMT versions that render those suggested rules & instructions invalid.
Despite using
unconditionalExclude to unconditionally globally exclude objects, something else is trumping that rule, and there’s no way around that.
Even using
MigXmlHelper.DestinationPrioity() won’t help us here because, like above, something else trumps that rule, and there’s no way around that.
The last proposed suggestion is to disable the shmig component, which may or may not break or otherwise adversely affect the backup/restore of other things. (This may be too difficult to detect easily or in initial testing and the uncertainty doesn’t
give us confidence problems won’t arise as a result of this change. Also,
Ned Pyle's post post says NOT to, but then again that's an old post.)
Is this no longer possible or am I'm just doing it wrong?

Thanks for the reply
TimAmico!
I saw your responses on Friday & Saturday, but didn't reply because I wanted to think this over a bit and try to get a second opinion.
The 'Appearance and Display' component looks to have a has a number of sub-components.
<component displayname="Appearance and Display" migrate="yes" ID="appearance_and_display">
<component displayname="Windows Games Settings" migrate="yes" ID="appearance_and_display\windows_games_settings">
<component displayname="Microsoft-Windows-GameExplorer" migrate="yes" ID="http://www.microsoft.com/migration/1.0/migxmlext/cmi/microsoft-windows-gameexplorer/microsoft-windows-gameexplorer/settings"/>
</component>
<component displayname="Taskbar and Start Menu" migrate="yes" ID="appearance_and_display\taskbar_and_start_menu">
<component displayname="Microsoft-Windows-stobject" migrate="yes" ID="http://www.microsoft.com/migration/1.0/migxmlext/cmi/microsoft-windows-stobject/microsoft-windows-stobject/settings"/>
<component displayname="Microsoft-Windows-explorer" migrate="yes" ID="http://www.microsoft.com/migration/1.0/migxmlext/cmi/microsoft-windows-explorer/microsoft-windows-explorer/settings"/>
</component>
<component displayname="Personalized Settings" migrate="yes" ID="appearance_and_display\personalized_settings">
<component displayname="Microsoft-Windows-uxtheme" migrate="yes" ID="http://www.microsoft.com/migration/1.0/migxmlext/cmi/microsoft-windows-uxtheme/microsoft-windows-uxtheme/settings"/>
<component displayname="Microsoft-Windows-themeui" migrate="yes" ID="http://www.microsoft.com/migration/1.0/migxmlext/cmi/microsoft-windows-themeui/microsoft-windows-themeui/settings"/>
<component displayname="Microsoft-Windows-shmig" migrate="yes" ID="http://www.microsoft.com/migration/1.0/migxmlext/cmi/microsoft-windows-shmig/microsoft-windows-shmig/settings"/>
<component displayname="Microsoft-Windows-shell32" migrate="yes" ID="http://www.microsoft.com/migration/1.0/migxmlext/cmi/microsoft-windows-shell32/microsoft-windows-shell32/settings"/>
<component displayname="Microsoft-Windows-CommandPrompt" migrate="yes" ID="http://www.microsoft.com/migration/1.0/migxmlext/cmi/microsoft-windows-commandprompt/microsoft-windows-commandprompt/settings"/>
</component>
</component>
If I'm understanding the XML correctly, setting 'Appearance and Display' to 'no' will not bring over any of the sub components:
Windows Games Settings: Microsoft-Windows-GameExplorer
Tarkbar & Start Menu: Microsoft-Windows-stobject
Tarkbar & Start Menu: Microsoft-Windows-explorer
Personalized Settings: Microsoft-Windows-uxtheme
Personalized Settings: Microsoft-Windows-themeui
Personalized Settings: Microsoft-Windows-shmig
Personalized Settings: Microsoft-Windows-shell32
Personalized Settings: Microsoft-Windows-CommandPrompt
If so, that, to me at least, represents a pretty significant change! We want the pinned items but not the backgrounds and themes so that specific change won't work for us, but glad to hear it meets your needs. (Also greatly appreciate your sharing
your results with us.)
I'll admit, even before reaching out to MS, the logs clearly show that the themes/backgrounds are all part of the 'Microsoft-Windows-shmig' component but dang it if I want something of substance (read: official documentation) that covers what exactly that
component handles. (I like to know what I'm potentially getting myself into.)

Finder can not find and display certain files. Why? Any fix,please?

I've discovered to my surprise that Finder can not find and display certain files. Computer is Mac book OS X (10.6.8)
No matter what Finder settings I use, there are files which it can not detect and display.
Here are just some examples of files sitting in the HD but Finder can not display them:
Located in preference panes :
fibre channel 1.7
Located in :    /Library/StartupItems/BRESINKx86Monitoring
BRESINKx86Monitoring
FxLicenseManager
Located in    /Library/StartupItems/FxLicenseManager
EAP8021X
Located in    /System/Library/PrivateFrameworks/EAP8021X.framework
The questions:
What to make of this inability of Finder to ,well, find? (again - I tried all possible settings of Finder!)
Is there any way to fix it?
Thanks for any competent suggestion!

Well, guys,
Interesting suggestions but the problem remains -Finder (aka Spotlight) is not capable to find certain files.Period.
I consider it as a fault of the system because in comparison, a search facility of a plain Windows based machine is capable to dig out and display any file, no matter now deeply hidden...
As far as the suggestion above by softwater goes , well, I've used the additional foptions extensively and nothing produced the result needed -that's why I created this discussion.
If someone still believes that using Finder with all its options is good enough, here is a test for you to perform on your own Mac:
-Open /Library/StartupItems/ and have a look inside - most likely you have a bunch of items. Write down the names of one or two of them. For this test I've chosen
FxLicenseManager located in    /Library/StartupItems/. You can use any file you want grom this location...
- Then go to Finder and set it to display everything in Library of the HD. Remember - for this test you pretend you don't know any file name in this folders.
If the Finder works properly it shall display folders of Library >Startup items with all stuff inside, including the FxLicenseManager file I used for this test.
Finder displayed nothing. It is obvious that for Finder, certain locations are off limits. That's why I consider Finder as a faulty.
Of course if someone can set the Finder's options to do the above search and succeed, I'll be glad to try ...:-)
At this point, what I gather from this discussion is that :
1. Finder (Spotlight) feature is not to be trusted,despite number of fancy but rather useless options.
2. If you need to really find everything usually not displayed by Finder you better get real searching software.

Regrading peak detection Vi input

I would like to use this peak detection but i would like to remove the signal source and use my own input instead. Could anyone teach me how to do it? thanks^^
Attachments:
Peak Detection and Display1.vi ‏37 KB

The input to the peak detector VI is a simple DBL array. I would recommend you use Peak Detector.vi instead of the unexposed subVI in your code (from the biomed toolkit?).
Where are you getting your data? How you get from there to the peak detector will depend on this, since your data type could be dynamic data type, waveform, or simple array. When in doubt, search the LabVIEW help first.
This account is no longer active. Contact ShadesOfGray for current posts and information.

Hi, my computer is not detecting any display, i'd been having this problem since i connected my computer to a tv, the tv burned up, and after that my port doesn't detect anything at all?? Was that the problem can I fix it.I have the lion 10.7.5.

Hi, my computer is not detecting any display, i'd been having this problem since i connected my computer to a tv, the tv burned up, and after that my port doesn't detect anything at all?? Was that the problem can I fix it.I have the lion 10.7.5. Dont know if I changed settings or something.

Hello,
It isn't the fw in Network you want o use or look at, that's for something completely different.
My first suspect is the Power Adapter on the LaCie has gone.
At the Apple Icon at top left>About this Mac, then click on More Info, then click on Hardware>Firewire, what is listed there?
Reset the Firewire bus
If your Firewire or USB isn't recognizing any device. A solution which has worked for some whose hard drive became invisible in 10.4 was simply to follow these four steps to reset the Firewire/USB bus:
1. Shut the machine down.
2. UNPLUG the power lead to the computer and any firewire/USB drive or devices.
3. leave it for 10 minutes.
4. Connect back up and reboot.
http://www.macmaps.com/firewirebug2.html

Fetch and peak detection all channels of PXI-5105 with 4M record... HELP!

Dear collegaues!
Please help me to improve performance my application, see attachment, and sorry for my English.
So, my task is to fetch and peak detection all (eight) channels of PXI-5105 with 4M record and sample rate 4M with loop 1 sec...
Inputs of all my channels are wiring to NaI detectors with 0,5...1 microsec of pulse width (really) and freq from 0 kHz to no more than 40 kHz.
Why I've selected 4M record and 4M sample rate namely? Answer is that I've tested PXI-5105 previously by generator 40 kHz and 0,5 microsec width pulse. It is working fine and peak detection indicate for me 40000 pulses/sec. If I set lower than 4M record and 4M sample rate it is no working. In my honest opinion 4M record and 4M sample rate are very min settings.
In the present time peak detection working only 6 channels... When I've connected to diagram more than 6 "peak detector.vi" - I see the error "...out of memory...".
Please advise me, what is to be done for that is all working fine.
Solved!
Go to Solution.
Attachments:
consumer-producer7.vi ‏44 KB

What you are running into is an out of memory error in LabVIEW. You have enough onboard memory to capture 4M samples per channel on the digitizer. The issue is with fetching and manipulating that data in your LabVIEW application. You will want to step back and take a look at how you are handling your data to understand why that is happening.
1) 4M samples/ch = 4M Samples x 2Bytes/sample/ch = 8M Bytes/ch
2) Expanding to 8 channels creates 64M Bytes of data in the raw binary format
3) You are scaling your data by fetching in a 1D WDT format. This stores each sample in a 32 bit double, expanding the memory to 256M Bytes (in addition to timing information)
4) By splitting up the array of waveforms and branching data it you can easily create copies of this data, and if your consumer loop is not completed with the last data, you may be trying to capture a whole new set, creating yet another copy.
So you can see that while you have 1.5GB of controller memory, when dealing with large arrays of data you can easily eat up that memory. There are several things you can try to make your application more efficient. You could work with an unscaled binary data format, you can wire the array of waveform directly to the peak detect vi (instead of creating 8 copies, you will have a single copy with arrays of output) or you could revisit the record size you have chosen (experimenting with your threshold and width settings might help you to get the results you want with smaller record lengths).
-Jennifer O.

TS3048 My MacBook OSX 10.6.8 detects the wireless keyboard apple A1255 but once the passkey is ask the "pairing" process stops and displays a warning saying it was unsuccessful. Bateries are new on the keyboard and it has been paired to this MacBook .

My MacBook OSX 10.6.8 detects the wireless keyboard apple A1255 but once the passkey step show on the screen the "pairing" process stops and displays a warning saying it was unsuccessful. Bateries are new on the keyboard and it has been paired to this MacBook before. Mouse, iphone and other bluertooth devices have no problem pairing via bluetooth. Any suggestions where to look?

I read somwhere that firefox disables certain versions of java because it might give control of your computer to other malicious websites
I think you have to go to the java website and down load the version you need and enable it in firefox's prefrences
Sorry I may be a veteran in using firefox, but I know very little since I hardly had problems with mozilla untill just very recently hope this helps

I was trying to fix my screen resolution and now it's stuck on auto detect cannot display this video mode. I tried another monitor and it still won't show anything. I'm locked out

I was trying to fix my screen resolution and now it's stuck on auto detect cannot display this video mode. I tried another monitor and it still won't show anything. I'm locked out

Reset the SMC and PRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
About NVRAM and PRAM
Next try Safe Mode boot and and then normal boot
OS X: What is Safe Boot, Safe Mode?

Block Peak Detection and Display

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