Data accuracy for USB-9219

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• Slow data transfer for USB flash drives

  When I transfer a file to a USB flash drive, the transfer is very slow. I checked my USB host controllers and they work very well. There seems not to be of hardware problems. Here is the Dell gx270s, the two XP Professional SP3 running computers. I didn't find any solution on the support site for anyone. Controllers are Intel. I used the Driver Max and it does no problem - but I wonder about the accuracy of this program.

  Anyone who has ever had this problem and figured it out?

  Michael Skladd

  Hello
   
   
  1. What is the brand and the model number of the flash player?
  2 is this problem limited to this flash drive?
  3 are. what transfer speed you now?
   
  Check if the transfer rate is the same on another computer. Also, try using a player different flsah on this computer and compare the transfer rate. I would ask you to update the drivers for the chipset on the Dell site.
  http://support.Dell.com/support/downloads/devices.aspx?c=us&l=en&s=Gen&SystemID=PLX_PNT_CEL_GX270&OS=WW1&OSL=en
   
  I hope this helps.

  Thank you, and in what concerns:
  Shekhar S - Microsoft technical support.

  Visit our Microsoft answers feedback Forum and let us know what you think.
  If this post can help solve your problem, please click the 'Mark as answer' or 'Useful' at the top of this message. Marking a post as answer, or relatively useful, you help others find the answer more quickly.

• Acquisition mode continues for USB-5132

  Basically, we like to use USB-5132 for recover data from two input channels digitizer continuous (I / Q signals).
  I perform ^ 2 + Q ^ 2 operation continuously in Labview and then export the result in real-time to

  C / C + c++ / Matlab on PC data format for more complicated algorithms of signal processing.

  Is this possible?

  Thank you very much for all your comments!

  Gators,

  Any device that you can find in the PCI form factor that is able to acquire quickly enough for your application will work for you. The material has nothing to do with your ability to process and display data on the fly. How to write your program to acquire and process data will be the determinant of whether you will be able to track the incoming data. I would recommend that you look for in producer / consumer performs a loop to process the data. The PCI-5102 will not be able to acquire fast enough for your application, I recommend the PCI-5114 or PCI-5112 for your application. I also recommend to take a lot of memory board for the card you purchase as you go to acquiring data at a fast speed for a long Aussie time.

• Best way to generate the software clock for USB-6501 of Measurement Studio for c# VS2008

  Hi all

  I wonder if there is a better way to generate a clock software for USB-6501 of Measurement Studio for VS2008 in C Sharp?

  I have developed a clock using C Sharp "Thread.Sleep (msecPauseTime)"; and statements to switch digital output high and low. There are a few things I noticed in creating a software clock in this way:

  1. The smallest delay by the Thread.Sleep command time is 1 millisecond (which means higher clock period is 2 msec-500 Hz, not holding not ball account no. 2 below).
  2. Sometimes the delay I see on an oscilloscope is considerably longer than the delay that I specified in the sleep command.

  In my application, I create signals (a clock, a latch enable and data series) to control what an attenuator step through the USB-6501 RF connected to a USB 2.0 on my computer. This particular step RF attenuator can accept clocks with frequencies up to 10 MHz, so I would like to generate a software clock (without having to connect to an external clock to a line of input on the USB-6501) which is closest to this maximum frequency, and I think that the USB2.0 line could handle clock speeds over 500 Hz. Also, I would like to know why the delays that I see on the scope are sometimes longer than the time specified by the Thread.Sleep command. Is it caused by the suspension of the execution of my program processor for something else, as I suspect? Of course, this isn't a big deal, because it does not affect the time as my serial data and pieces change compared to my clock. However, I would like to know why it does this.

  I appreciate your help.

  Thank you

  Jonathan Becker

  Doctoral research engineer

  Carnegie Mellon Silicon Valley

  Jonathan,

  Since the USB-6501 DIO is software programmed, you are at the mercy of the planning of the operating system and won't be able to work reliably with an external clock in the software.

  You can try to set the priority of your thread 'generation of clock' to improve performance, however, because Windows is not a deterministic operating system, there are still no guarantees.  Operating systems are not required to honor the priority of threads.  You can find examples and information on the definition of the priorities of the threads in c# here:

  http://msdn.Microsoft.com/en-us/library/system.Threading.thread.priority.aspx

  Kind regards

• Do another counter for usb-6008 VI using Labview 8.5

  I want to create another counter for usb-6008 using Labview 8.5, it is necessary to calculate the two gears simultaneously.

  The best way to proceed is to use the meter.  The counter counts
  signals without having to interrupt the system or use the USB bus.
  When you ask the number of ticks that saw the meter, one
  request is thrown from the CPU to the USB line to the 6008, which then
  request counter "ticks how have you seen?  This number is
  returned on the USB bus, goes to the CPU and display on your
  screen.  Given that the DIO lines on the 6008 are software timed, it is
  no way to guarantee that the data back to the central unit is
  deterministic.  The conceptual difference between software-controlled
  DIO (that nondeterministically returns an entire stream) and a
  meter software-tick-application-controlled (which returns a unique number
  with the number of ticks) prevents us from using the DIO lines on the
  6008. the best way to count more edges is buying more 6008 s.
  Another possibility would be to buy a PCI card to counter such as
  the PCI-6602, who owns 8 counters. Most of the counters we offer in the
  USB form factor is 2 per device.

• Raw data to a USB printer

  How can I send the RAW DATA to a USB printer?

  I found a bunch of programs and sharper than what's to do that. How can I do it using LabView?

  The net don't need to have the VISA or any other software program just the raw data, and that's it.

  Thanks for your help

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• Is there a HCL for USB?

  Hello

  is there a HCL for USB, install ESXi 5.1 on it? I want to assure you, that I have allways have a supported vmware environment.

  Thanks and greetings

  Michael

  Yes, see this article;

  http://KB.VMware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalID=1021345

  With the help of USB devices that are not in the list of devices supported

  If a USB device isn't on the list supported, set up a test environment with ESX/ESXi hosts and virtual machines to reproduce your production environment. Set the USB to the ESX/ESXi host and add it to the virtual machine. If the operation of the USB device works as expected, you can attach the USB device to a host ESX/ESXi virtual machine and production.

  These USB devices are not available for passthrough:

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  • USB devices that installed an ESXi host. For more information, see VMware for devices USB/SD used for the installation of VMware ESXi (1010574).

  Post edited by: jrmunday

• VSphere ESXi Update 1 to access the data on a USB key.

  I have ESXi Update 1 installed and you want to access the data on a USB key.

  (1) someone could let me know if plug a USB memory stick directly the ESXi server hardware is supported in update 1?

  (2) and/or could someone let me know how I can access files on a sick memory that is attached to the computer on which I have installed client vSphere on (I'm then going to the VM to the server ESXi from this PC).

  I want to just access the files (ona USB key) in the VMs (update information Lic) operating system. Is this possible?

  You will not be able to do, vSphere does not allow access to USB devices.

  You can try VMDirectPath with your USB PCI controllers, but anyway are still not supported.

  Marcelo Soares

  VMWare Certified Professional 310/410

  Master virtualization technology

  Globant Argentina

  Review the allocation of points for "useful" or "right" answers.

• How can I back up all my data on a usb key mozilla Firefox?

  I now have a sync account. But in addition to being able to sync to other computers I want to safe me data on a usb key. How can I do this? Thank you Tj

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  Post edited by: idposada

  Hello

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  What cell phone do you have?
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  Thank you

  Well, I found what seems to be the problem. My USB keyboard and mouse are connected to a KVM switch that in turn connects to the HP PC. The KVM cable provides keyboard and mouse via a simple USB connection. I have connected a second USB keyboard directly to another USB port, and as you say, the BIOS it supported. I then connected the USB keyboard and mouse for a simple USB hub and then to the HP PC, and BIOS does not recognize the keyboard once more. It would seem that the problem is that the BIOS of the PC HP does not support keyboard behind a USB hub connectivity. I have no detailed knowledge of USB connectivity but could guess that there must be a difference Protocol when I hub is in the Middle – obviously the PC must focus on a specific device behind the hub.

  In the end, I think I'm stuck just keep a separate keyboard (PS/2 or USB) around for those times when I need to communicate to the BIOS.

  I have another PC of the same vintage - a custom platform - and it handles the keyboard behind the hub very well. I wonder if all new PC BIOS handle this.

  Thanks again for your responses - very useful.

• Satellite Pro A120 and WXP - need drivers for USB and SD slot

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  After reinstalling the operating system won't work.

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  The three of us taken are marked with the trident USB logo. The one on the left is also equipped with a bolt of lighting journal.

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