Error 50400 FlexRIO example "Coprocessor FFT"

As the title says, I have tried to run the example "FFT co-processor" located in LabVIEW 2013 FlexRIO PXI-7954R FPGA with examples but kept "ERROR-50400 occurred to the Invoke method: FIFO.» Write in TNI .vi co-processor (host). Possible reasons: the transfer has not completed within the time or in the specific number of retries. ».

I use LabVIEW 2013 SP1 with Xilinx 14.4 of the compiler. I didn't modify the code except copied the FPGA vi to the PXI-7954R target newly added and recompiled; and change the FPGA VI reference in the host vi as a result.

I tested the code in simulation mode (i.e., run VI FPGA on development with simulated IO computer) and it worked fine. However, when running on the target FPGA it does not work. I followed the 'empty remaining items' on "host-to - FPGA.Write" at the host vi and the value was 5. And "other" in "FPGA-to - Host.Read" in the host vi is 0.

It has something to do with the FIFO buffer size? Suggestions or comments are greatly appreciated.

Thank you

Bing

Theres a race condition in the code of the host. If you try to read before you write, then the FIFO is to expire. If you make sure that you write before you read while the timeout never occurs.

Attached is a version of the host code that writes then reads using a state machine.

Tags: NI Software

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    Repair and defragment the database

    Start - All Programs - Accessories - right on command prompt and choose run as administrator. Type (or copy and paste by clicking in the command prompt window and choose Paste).

    Esentutl.exe /p c:\Windows\SoftwareDistribution\DataStore\DataStore.edb

    Esentutl.exe /d c:\Windows\SoftwareDistribution\DataStore\DataStore.edb

     
     

    Each of the three towers of programs, services, and drivers in increasing amounts. So restrict the possible culprits.

    Clean boot

    Click Start - all programs - Accessories - run and type
      
    msconfig
     
    Then go to the Startup tab uncheck everything. Then go to the Services tab check hide all Microsoft Services and uncheck everything that is left.

     
    Reset. If this resolves your wake problem ½ of services / of startup items until you find that one.

    Tip clean boot

    If the above does not help.

    Download Autoruns http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx

    Start the program by right-clicking and choosing run as administrator and click on the menu Options - Filter Options and check hide Microsoft entries and disable include the empty slots. Uncheck the box just to the left.

    Reset. If this resolves your wake problem half of the items until you find the one that.

    Safe mode

    If the above does not help. Windows Update does not work in safe mode.

    Use safe mode with Networking if you need internet access.

    Click Start - all programs - Accessories - run and type
      
    msconfig
     
    Go to the Startup tab, and then click Start secure (also check network if necessary). Reset. Come back here and uncheck the box secure start to return to normal mode.
     
    or
     
    If your computer has a single operating system installed, repeatedly press 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. [Correction to start - Help and Support]

     
     

    Determine the Version of Windows Installer

    Windows Vista comes with version 4. Version 4.5 is available for download. To determine the version,

    Click Start - All Programs - Accessories - right on command prompt and choose run as administrator. Type

    msiexec

    If you have Version 4.5 try reinstalling from

    http://www.Microsoft.com/en-AU/Download/details.aspx?ID=8483

    If you have Version 4 continue with the other steps below.

    Reregister Windows install

    That you re-register Windows Installer.

    Click Start - all programs - Accessories - right click on command prompt and choose run as administrator. Type


    regsvr32 c:\Windows\System32\msi.dll
    regsvr32 c:\Windows\System32\msihnd.dll
    regsvr32 c:\Windows\System32\msimtf.dll
    regsvr32 c:\Windows\System32\msisip.dll
    msiexec/reg

     

    FixIt

    Microsoft has a range of automatic programs to solve common problems. To see Windows Installer problems

    http://support.Microsoft.com/mats/Program_Install_and_Uninstall/en-us

    For the visit of the list the most comprehensive

    http://support.Microsoft.com/FixIt/en-us

    When you choose to download, choose the option to run on another computer. You can then save it to a folder on your hard drive. Open the folder, open the folder fix this laptop and run Run Fix It. It will contain all 27 FixIt.

     

    Reinstall the Services registry entries

    Download MsiServer_Vista_32.reg from https://skydrive.live.com/redir?resid=E2F0CE17A268A4FA 121

    Click Start - All Programs - Accessories - right on command prompt and choose run as administrator. Type Regedit menu and file - import , import the MsiServer_Vista_32.reg.
     
    Reset
     
     

    Restart the Service and dependent services

     
    Click Start - All Programs - Accessories - right on command prompt and choose run as administrator.
     
    SC start DCOMLaunch
    SC start RpcSs
    Start msiserver sc config = request
    SC start msiserver
     
     
    .
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