USB-7856R shows a 40 MHz clock...

Similar Questions

• USB-7856R

  Not sure if this is good advice, but here goes.

  What is the difference between a USB-7856R and a USB-7856R OEM?

  Hi johnoc,

  I think that the best advice of posting this would have been the real time measurement and Control Commission here: http://forums.ni.com/t5/Real-Time-Measurement-and/bd-p/280 .  However, I can still do my best to answer your questions.

  There are a few differences between the USB-7856R and the OEM USB-7856R.  Mainly in the areas of certifications of products and outputs and inputs available.  I've included some links below that have relevant information.

  R series OR for USB - OEM: http://sine.ni.com/nips/cds/view/p/lang/en/nid/212044

  NI USB - 7856R Product Page: http://sine.ni.com/nips/cds/view/p/lang/en/nid/212018
  NI USB - 7856R Specifications: http://www.ni.com/pdf/manuals/374952a.pdf

  NI USB - 7856R OEM Product Page: http://sine.ni.com/nips/cds/view/p/lang/en/nid/212019

  NI USB - 7856R OEM Specifications: http://www.ni.com/pdf/manuals/374242a.pdf

  If you are looking for a device to adapt to a specific application, I recommend contacting one of our sales representatives.  Information on how to contact is available at the link below.

  http://us.NI.com/contacts

• Independent of the 40 MHz clock Onboard FPGA PPS GPS meter

  Could you give me some advice or point me in the right direction?

  I need to time counter accurate/tick synchronized by GPS PPS synchronization signal.

  I got cRIO S.E.A. GPS Module that trigger PPS signal at the bottom of basket FPGA. PPS rising edge signal precisely mark the beginning of the second.

  When I measure the number of ticks of 40 MHz clock FPGA embedded in a (PPS) second number of ticks is not 40.000.000 ticks but something like 39,999,800 ticks.

  I want to measure with precision time between edges up/down digital signals. Because the clock of 40 MHz FPGA are drifting I can't use it.

  How could set up my own witch counter ticks will be put away with signal GPS PPS?

  I don't expect that I could provide 40 MHz FPGA on board the oscillator.

  Should I create my own counter which will increase the opposite by the value 1.000,005 (40 000 000 / 39,999,800) each tick and this counter will be running timed loop (chronometric 40 MHz FPGA embedded base). Increment the value (1,000...) will be updated every seconds dependent PPS vs FPGA clock drift.

  My configuration: cRIO-9025, cRIO-9116, S.E.A. GPS + cRIO module, high-speed DIs NI 9402, RT/FPGA LabVIEW 2011

  Looking forward to your hearing you.
  Peter

  Hi all

  This could help you.

  Timekeeper FPGA

  • http://digital.NI.com/public.nsf/allkb/EFDC35727D4F2CC086257A0700693003
  • https://decibel.NI.com/content/projects/NI-TimeSync-FPGA-timekeeper

  (I do not understand how this could be released on 23/05/2012)

• PCIe-7852R and OR USB-7856R OEM Calibration with Calibration Executive

  Can I calibrate PCIe-7852R and NI USB-7856R OEM with NI Calibration Executive?

  How?

  Our version of National Instruments Calibration Executive Software is 3.5 and it has no procedures to OEM PCIe-7852R and NI USB-7856R products.

  Hello

  There are several ways to calibrate your instruments.

  First of all, the help file for the calibration of R Series devices to the Calibration Executive can be found by navigating using the Executive of Calibration > calibration device > data acquisition (DAQ) devices > NI dynamic signal Acquisition > NI R series calibration procedure

  You can also follow the instructions in the following document.

  http://www.NI.com/PDF/manuals/372004d.PDF

  Finally, you can also calibrate your software for the R Series devices using the calibration installed with the drivers. You can get "calibrate the device 78xxr" and run the executable file to calibrate your devices.

  Thank you.

  Kind regards

  Nigel

• Data NOR 6561: 36 MHz clocked

  Hello

  I need to send/receive the LVDS data from/to a product. Data must be clocked at 36 MHz and the clock will have in the product.

  Can you confirm that if I use a PCI-6561:

  -J' I need a 36 MHz external clock, connected to the jack IN CLK (clock edge can't be used?)

  -I have to export the sample clock on one of the CLK OUT ports

  Thanks for your help,

  Anne

  Hi Anne,.

  You're right on all points.  The 6561 can only generate frequencies from 200 MHz/N with its clock on board.  You might get 40 MHz or 33.3 MHz, but not of 36 MHz.  You can connect a 36 MHz clock source to CLKIN and use it as your sample clock source.  You can also export this clock with your data (if you use the DDC clock on terminals, data and clock will be a guaranteed phase relationship).

  Hope that helps,

  Keith Shapiro

  National Instruments R & D

• precision microsecond using 40 mhz clock

  Hello

  The time between the 2 following loops deference should be 1 micro second. I have 40 mhz clock and its derivatives. How can we achieve this. ?

  Thank you

  Rognard

  Sorry, there is an error.

  Assuming that the analog input range is +-10V:

  Scale-10V, 0 (16 bit binary)

  and 10V as 65536 (2 ^ 16 last value in the range of 16-bit)

  Take care to complete the sign (since its signed integer) bit when moving - 10V-1, then 0 to 10V

• How to use the I2C clock as 1 MHz clock source?

  I use USB-8452 and try to find the source of the clock that allows to generate 1 MHz.

  Hi JimSi,

  You try to make it to the USB-8452 generate a constant 1 MHz signal?  If so, I don't think that you will be able to do it, sorry.

  Best,

• Enhancement request: Show time up alarm clock App

  I wish that it y comments given in the iOS clock app after setting or activate an alarm that would show the time until the alarm triggers. This helps to ensure the accuracy of the alarm and prevents the user to make the faults of AM/PM when you set an alarm.

  For example, is it is 20:00 and I accidentally put a clock from 19:00 tomorrow instead of 07:00, I wish the application would give comments indicating that the alarm goes off in 23 hours instead of 11 hours I intended when the alarm setting.

  You can say Apple on the link below.

  http://www.Apple.com/feedback/iPhone.html

• Satellite Pro 6100: Intel Pentium 4 M clocked 0.2 Mhz instead of 1.8 MhZ clock speed

  Hello

  I have a 6100 Pro Satellite under XP SP2 on Bios 1.90. A few days ago, he suddenly started running very slowly.
  According to the value of the ID of Intel, processor running at approximately 0.2 MHz, instead of the maximum speed of 1.8 MHz, with a similar reduction in the speed of the bus.
  I have reset the BIOS and restore the MBR & OS, but the problem remains.

  I'm running on current alternative, with display 100% charged battery. I also turned off all power settings to try to stop the running slow robot through the Intel speedstep technology.

  This might sound like a hardware problem, but if I boot the machine from a Linux CD (Knoppix), it works very well - very reactive, and according to linux, the clock measures the speed to about 1.79 MHz.

  Does anyone has an idea what could be causing this, or what I can try next?

  Hello

  at first your machine cannot operate at 0.2 Mhz. It's impossible! So I think that this utility Intel ID is not give you correct information. He must know that the slower speed will achieve your cpu, established in the region of 600 mhz.
  With 0.2 Mhz run your computer won´t!
  You said that you have restored your system, but the fact that you have installed the latest drivers and tools for this computer from the Web from Toshiba site?

  Maybe your CPU is defective, which can be a reason.

  Welcome them

• GPIB-USB-HS shows no MAX after that I used the wizard NI VISA DRIVER

  I accessed GPIB USB HS in the MAX software. As I was not able to communicate NF RLC remotely, so I tried Wizard DRIVER VISA OR according to tutorial Assistant pilot NI VISA , however, thnings went wrong and I am not able to see same GPIB to the MAX software now. What should I do now?

  The first picture below shows the GPIB USB HS as shown in the software MAX and the other image shows no GPIB USB HS.

  

  

  Yet once I installed driver USB GPIB link below:

  http://www.NI.com/download/NI-488.2-15.0/5427/en/

  Its working fine now.

  Thank you.

• "Data was overwritten before it can be read by the system" count with PCI 6601 with 20 MHz clock

  
  

  Hello Aditi

  What exactly is the purpose of the use of the clock of 20 MHz?  You count the edges of it?

  You can try to use the VI DAQmx Configure entry 'buffer' to increase the size of your buffer.  You can also use the DAQmx channel node to set the DMA data transfer mechanism.  If you create a channel node, you can get to this specific property through this path: counter of entry: general properties: learn more: Advancedata transfer and memoryata transfer good mechanism.

• USB stick shows a removable drive instead of quote as the name suggests correctly in disk management

  When I insert my USB it doesn't show the name instead shows the removable disk in my computer, it displays the name of disk mgmt why?

  problem solved. I simply formatted the USB key and changed the label, and now the name shows... thankx...

• Qosmio F16 - 14Q - internet USB device showing! in the Device Manager

  Hello

  "my USB device that connect to the internet does not and I wanted on this subject in the Device Manager, it appears under the drive of cd-rom and other two devices below the CD with"! "sign and then I removed the cd-rom drivers.

  Can some give me a link to download the cd-rom driver and help make my USB device work?
  On the drivers, I didn't know my kind of Qosmio in the driver list, he writes back the Qosmio F16 - 14Q.

  Please help me

  I put t know what USB device do you use but if it doesn't work, you must have the driver for this device of some. Part material Toshiba doesn t support third so try please talk with your internet provider and ask for help.

  Another thing: I put t know where you bought your Qosmio but I assume it has been offered to Pakistan. The right support page should be http://asia.toshiba.com/pakistan

  As far as I know, optical drive uses the standard Microsoft driver so that you won't find a driver for the CD-rom drive.

• Portege 3480CT shows only 500 MHz instead of 600 MHz

  The manual mentions it as 600 Mhz machine, but mine never runs greater than 500 Mhz since I installed XP

  The 500 Mhz processor never leaves. I didn't know this until I installed a small utility to monitor the speed of the processor. The most I ever get is 500 Mhz. I don't know why it won't speedstep upward.

  I installed the software to save energy, but it was just a futile attempt

  Hello

  You can also check the hardware configuration tool. On the CPU tab you can set the CPU frequency mode. Try to set it to high. I believe that in this case the CPU will run with maximum speed constantly.

  Good bye

• Some USB devices show device in Device Manager unknown

  When I plug a deive flash or a WIFI usb adapter into my usb 2.0 port, I get an "unknown device" in Device Manager. The functions of port with a mouse wireless usb mouse and a rumor 2 phone. The problem started when an Ipod shuffle has malfunctioned while that plugged into the computer. I tried auto fix it on the fix

  Hello

  I suggest that you follow the steps in this article and see if the problem still occurs.

  How to troubleshoot unknown devices listed in Device Manager in Windows XP