Initialization of the DRAM in FPGA

Similar Questions

• The initialization of the lut for FPGA

  I am currently generate a waveform on an FPGA using a program to initialize a look-up Table (LUT).  When I select call VI of initialization, and then select the path and click OK, Labview begins to consume a lot of time CPU, but nothing seems to happen--none of the buttons except the open dialog box file and the close icon (red box with an x in the upper right corner) is grayed out.  Someone at - it ideas?  Maybe I'm doing something wrong, but there is very little documentation on this function.  I have attached the VI that I use to try to initialize my table.

  Any thoughts would be great.

  Cheers, Matt

  This must have something to do with the complexity of the LUT VI initialization.  As a work around, I simply wrote the data in a file that I then read for the initialization of LUT.  I have attached the screws again.

  The lack of reactivity is a problem, but also the absence of any indication of an error.

• The initialization of the BRAM on FPGA

  Hey guys,.

  I have a small question. In my properties BRAM, I put the initial values to 0. But if I write a FPGA code where I just read the first 11 addresses in my BRAM there are only those inside the BRAM.

  After that, I fill the BRAM by others because I want to check under what conditions the BRAM is reset to its initial values again.

  As I said, there are already in the BRAM even if I run this bitfile for the first time (VI could not start after compilation because of a difference between the VI and bitfile).

  

  So what LabVIEW sets the initial values of BRAM?

  Hey Jon,

  Thanks for your effort. I just tried another approach. Now, I use two bitfiles. A first for the initialization of block RAM, and second for the program. So in the first one that I write zeros in the ram block. These seem to be saved or at less the self initializing works... I don't like as long as the RAM block is filled with zeros when I start my main application

  Kind regards

  Slev1n

• Disable the extended FIFO FPGA target during execution

  Hello

  I use a FIFO extended target in my FPGA to constantly calculate the derivative of a measured value (dB/dt). Thus the FIFO stores all values during time dt. This means dt determines the number of items in the FIFO and dB is determined by the actual value less the oldest value in the FIFO. It works well when I initialize with the code in figure InitFIFO.

  But the FIFO of compensation is not possible (see figure clearFIFO). In the while loop if "reset dB" is false, as the new value of B is written on the FIFO, then the oldest value is read from, for the number of items in the FIFO remain constant. To change dt during execution, I need to clear the FIFO and initialize it with a new length (number of items). I tried the next loop, but it does not work. The FIFO does not initilized with the elements. The length is zero and the loop counter for (#deltaB Length2) is 0.

  What I am doing wrong? Is there a better way to erase a FIFO during execution in the FPGA? I'm now stuck for 2 days with this problem and looking forward to any idea or suggestion.

  Thank you very much. Best regards

  Andy

  Hej,

  Thank you for your response. You were correct, that deltab FIFO length was 0 because the defalt value was zero. The problem is that in my host vi on the RT system I put DeltaB FIFO length in a loop of high priority and as you can see when I restart the FPGA, DeltaB FIFO length has a valid value (the code in figure 1 works well with a local variable of DeltaB FIFO length in the FPGA). But the variable to set the variable "reset dB" is under the control of the loop of low priority of the host vi. And there, I had an entry DeltaB FIFO length unwired.

  So, I learned that a control FPGA read/write unwired sends a '0' or resets the variable to its default value in the FPGA. I assumed that nothing is transferred and the last variable is retained if you let a control read/write unwired. Now, I learned of this stupid error!

  Thanks a lot again!

  Andy

• Re: Satellite L300 - initialization of the webcam

  Hi all!

  I have installed Windows 7 on my Satellite L300 and the only problem I have, is that the built-in webcam does not work.
  I downloaded the software from Windows 7, but each time after reboot it tells me, that there is a problem with the initialization of the webcam.

  Any ideas to solve the problem?

  Thank you

  Hey,.

  What exactly downloaded Windows 7 software? You need the Camera Assistant Software to get the job of the webcam. You can download it on the Toshiba page.
  Did you do that?

  And what Satellite L300 you use exactly?
  You did an upgrade from Vista?

• Satellite L300-29V - failed to initialize for the logon process

  Hello

  Trying to upgrade my Satellite L300 - 29V Vista Home Premium to the Toshiba provided Win 7 Home premium with the help of the upgrade DVD Toshiba. I tried this many times now with no success. On each attempt, I get the message "* logon process initialization failed - the Interactive logon process initialization has failed. For more details, please see the event log. "*.

  At this point, the mouse is active, but none of the keyboard keys control apart from the pointer appears only on the area of the event, enter and esc. Pressure on one of them or by clicking on the OK button or Cancel will be empty of the screen. A minute later, the blue screen of death will be appear and disappear quickly, after that, I have the option load Win 7 or return to Win Vista. Do go back to Vista (which I did several times that I care to remember) is not a problem and the laptop runs without problem later. At any time I am able to view the event log.

  I followed the instructions given by the upgrade DVD, IE. removing the drivers and continued on the upgrade to Windows 7. I've updated the mobile site to download drivers/software Toshiba in order to have the machine as much upto date possible - everything to nothing is outside having more drivers to remove using the upgrade DVD.

  The only thing I did is to back up my data and recover Vista to factory settings and load on top of Vista in this way.

  But before that I'm looking for the Forum of Toshiba for any useful advice - someone else has had this problem or does anyone know a way around this - if so I would appreciate your help.

  See you soon

  Dleifynot

  It is really strange. I've updated Qosmio x 300 and Satellite A500 by using Toshiba upgrade kit.
  No problem at all.

  Did you follow instruction as described on http://aps2.toshiba-tro.de/kb0/TSB9902P60000R01.htm?

• Satellite A200-1TS - question on the frequency of the DRAM

  Hello

  I have the Satellite A200-1TS with bios vista x 64 vers.2.60 and I upgraded the RAM with (slot 1 and slot 2) each module 2 GB 800 MHz, and work, but the cpu - z program is detect the TIMINGS TABLE frequency is what is good for 800 MHz to 400 MHz, but the DRAM frequency is always working with 332,5 MHz (667 mhz).

  What is the problem? Can I do something to work at 400 MHz?

  Hello

  I think that the RAM works on 333 MHz because it s always according to the FSB of the processor.
  It seems therefore that the CPU has a 333 MHz FSB and RAM also runs on this speed.

  If you have any other questions, please let us know! :)

• USRP RuntimeError: Please update the firmware and FPGA images for your device.

  Hello

  I have an Ettus USRP N210 with a surfboard RF WBX running FPGA firmware version 4.

  2009 LabVIEW and NOR-USRP 1.1

  When I try to run one of the USRP VI OR as devices to find it displays the following error code:-1074118627

  "niUSRP Devices.vi finda length or configuration error has occurred."
  Code: 1440
  Details: RuntimeError:
  Please update the firmware and FPGA images for your device.
  See application for USRP2/N-Series notes for instructions.
  Compatibility of the Protocol expected number [7-11], but received 12:
  The version of the firmware is not compatible with the host code generation. »

  I can communicate with unity on Linux using UHD machine and the utility Configuration NI USRP can see the device, but firmware update is not possible, probably because of my IP ending in 221. Latest firmware Ettus was recharged via Linux UHD.

  Looks like my firmware again? I am not allowed to download the old versions of the FPGA firmware.

  Can someone help me with this problem please?

  With respect,

  -Sigurd has.

  Hello Sigurd,

  The NOR-USRP driver requires a specific firmware and FPGA image to be downloaded to the USRP to exploit.

  You can use the utility of Configuration USRP download appropriate firmware and FPGA image to the usrp.

  This knowledge base article will help you: how update the Firmware and FPGAS Images for N2xx and NI 292 x USRP

• Impose a factor of scale between the model and FPGA

  Hi all

  I have a VS project configuration that unfolds on a real-time system. The project has an FPGA and a model. Some of the output of the cards of the OD of the FPGA model. In addition, some of the AI of the FPGA cards at the entrances to the model. Here's my problem. The AI FPGA gives me a measure of voltage, but the model takes only a pressure (bar) as input. This means that I need to convert my blood pressure using a table or a formula. How to make that happen?

  Also, I want to use the same lvbitx FPGA and the same model of dll on various physical parameters. The only difference between these physical configurations is the forumla/table (for example, a different pressure sensor is used). Is a convinient way to say VS use different table games?

  

  Hi oeua.uoeuau,

  If you have a formula to convert the voltage in pressure, you can use a calculated string to implement. You just point to the computed in your Channel FPGA output and the inport of your model to the computed string. If you need a table of choice, you can create a model of LabVIEW that takes blood and uses a lookup table to get the pressure reading and the outport of LabVIEW model port in the inport else your model.

  To switch between the different scallings, you can simply use a procedure to set a variable to be an entry or another.

  See you soon,.

  < brian="" a="" |="" national="" instruments="" |="" applications="" engineering="">

• How can I get the Coefficients of scaling for the Butterworth filter FPGA version

  I am trying to program a FPGA application where I need to be able to change the cutoff frequency of the filter.  I see that I can do a terminal for the coefficients of the filter on the VI express Butterworth filter, but how to generate the coefficients of different cut-off frequencies of filter?  When I use the VI of Coefficients of Butterworth host-side small floating-point values rather than the large fixed point values I see on the side turns FPGAS.

  Thank you

  David R. Asher

  Hi David,

  8.5 or 8.6, there is an example of navigation that contains the Subvi design filter you need:

  examples\R Series\FPGA Fundamentals\Analysis and Control\Filter and filter Butterworth Reconfigurable DC-RMS\Using-R - series.lvproj

  In LabVIEW 2009, there is a new palette in my computer: Interface FPGA > scaling, with a new VI of Coefficients of Butterworth on this subject. Who will produce the coefficients quantified, you need in the format expected by the FPGA Butterworth filter.

  Kind regards

  Jim

• Records of the initialization of the array of strings

  Hello. I posted my project. It's not even close to finished, but I have a problem during the initialization of the table entitled 'values' and 'down of values', '0' for all elements, at the beginning of the Vi run. So, when I'm at the front and execution of the Vi, I would that all fields begin with a '0', the moment that the Vi is started. I tried a few different things, I could think and watched video 1 base on the tables again, however, it does not give the example of a string and nothing I have tried so far, works. Thank you.

  Filling of the indicators with default values is not very useful, because they will be overwritten once the program is running and updated indicators. In general, the default values are much more useful for controls.

  In any case, if you want indicators to reset the defaults, every execution of the VI, go to ' properties VI... execution "and check"of clear indicators when it is called.

  See if that fixes your perceived problem. Good luck!

• Initialization of the LEDs before running the second test.

  I am novice programmer Labview using LV 8.6.  I have an application where I have a lot of lights to indicate success or failure throughout my application in many different cases. After running these tests test that passed are indicated on the front panel with a light green. These failed tests are lit with a red LED. Is there an easy way to initialize all the LEDs return to their shutdown state before running the test a second time without reload the application?

  Here is a small example. First the Boolean values are changed to true, then they return to their fake. Does that help?

• IBM think centre @ request for initialization of the system user password and a genius set the bios to lock keyboard can it is bypassed and how?

  Original title: IBM think centre @ start request.

  IBM think centre @ request for initialization of the system user password and a genius set the bios to lock keyboard can it is bypassed and how?

  Hi brandon1980,

  I recommend you contact your computer manufacturer for assistance. The manufacturer would be able to give details about the BIOS (Basic Input Output System) and find out if this feature can be disabled.

  Hope the helps of information.

• error 1114 dynamic link library (DLL) initialization of the routine failed.

  I can't connect to internet

  Windows could not start the Service diagnostic on the local computer policy.  error 1114 dynamic link library (DLL) initialization of the routine failed.

  What is the solution to this problem everyone?

  Hello
  1 did you change on your computer before this problem?
  2. When you receive this error message?
  3. are you using Internet Explorer? If Yes, what version of IE are you running?
  Find out what version of Internet Explorer you are using
  http://Windows.Microsoft.com/en-us/Windows-Vista/find-out-which-version-of-Internet-Explorer-youre-using

   
  Follow the suggestions and check if that helps.
  Method 1
  (a) click Start .
  (b) in the search box type services.msc
  (c) right click on Diagnostic Policy service and go to the Properties.
  (d) select Auto under Startup type.
  (e) click Start .
  (f) click on apply and OK.
  (g)restart your computer.
   
  Method 2
  You can run the System File Checker.
  How to use the System File Checker tool to fix the system files missing or corrupted on Windows Vista or Windows 7
  http://support.Microsoft.com/kb/929833
   
  Method 3
  You can perform the clean boot to see if a service is causing this issue.
  How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7
  http://support.Microsoft.com/kb/929135
  Note: After a troubleshooting follow step 7: reset the computer to start as usual
  See also:
  The problems of Internet connection
  http://Windows.Microsoft.com/en-us/Windows-Vista/troubleshoot-Internet-connection-problems

   

• Failed to initialize for the logon process

  My phone displays the following message when I turn it on (the screen is black, but this message shows): failed to initialize for the logon process
  The interactive logon process initialization has failed.
  For more details, please see the event log.

  Clicking OK doesn't do nothing, the message just keeps reappearing.  I tried stopping and starting Windows up in Mode without failure.  The message appears in Safe Mode, as well.

  Hello berniesun,

  You can give the Startup Repair to try to clear this error. I've included the steps located in the help section on all versions of Windows Vista. If you want to print these instructions for yourself, you can go to help & Support in the Start Menu and type the Startup Repair in the top search box.

  Check back with us and let us know if this solves your problem.

  If you have a Windows Vista installation disc, you need to restart (boot) your computer using the installation disc. If you do not restart your computer from the disk, the option to repair your computer will not appear.

  If you have a Windows Vista installation disc:

  1. Insert the installation disc.

  2. Restart your computer.

     Click the button start , click the arrow next to the button lock , then click on restart.

  3. If you are prompted, press any key to start Windows from the installation disc.

     Note

     • If your computer is not configured to start from a CD or a DVD, see the documentation provided with your computer. You may need to change your computer's BIOS settings. For more information, see BIOS: frequently asked questions.

  4. Choose your language settings, and then click Next.

  5. Click on repair your computer.

  6. Select the operating system you want to repair, and then click Next.

  7. In the System Recovery Options menu, click Startup Repair. Startup Repair can invite you to make choices as it tries to solve the problem, and if necessary, it may restart your computer, because it makes the repairs.

  If the Startup Repair tool is an option of recovering preinstalled on your computer:

  1. Remove all floppy disks, CDs and DVDs from your computer and restart your computer.

     Click the button start , click the arrow next to the button lock , then click on restart.

  2. Do one of the following:

     • If your computer has a single operating system installed, press and hold the F8 key as your computer restarts. You need to press F8 before the Windows logo appears. If the Windows logo appears, you need to try again by waiting until the Windows logon prompt appears, and then stop and restart your computer.

     • If your computer has more than one operating system, use the arrow keys to select the operating system you want to repair, and then press and hold F8.

  3. In the Advanced Boot Options screen, use the arrow keys to highlight repair your computer and press ENTER. (If repair your computer is not listed as an option, then your computer does not include startup as a preinstalled recovery option repair).

• Select a keyboard layout, and then click Next.

• Select a user name and password, and then click OK.

• In the System Recovery Options menu, click Startup Repair. Startup Repair can invite you to make choices as it tries to solve the problem and, if necessary, it may restart your computer, because it makes the repairs.

Judd
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