Archived: NI-5640R 1.6 Known Issues

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Überblick



This document contains the NI-5640R known issues that were discovered before and since the release of NI-5640R 1.6. Not every issue known to NI appears on this list; it is intended to show the most severe and common issues that can be encountered.

Each issue appears as a row in the table and includes the following fields:

  • Issue ID - The number in at the top of each of the cells in the first column. When you report an issue to NI, you may be given this ID, you can also find IDs posted by NI on the discussion forums or in Knowledge Base articles.  "N/A" indicates that there is no ID assigned to the issue.
  • Issue Title (in italics) - Describes the issue in one sentence or less.
  • Problem Description - A few sentences which describe the problem in further detail. The brief description given does not necessarily describe the problem in full detail, and it is expected that you may want more information on an issue. If you would like more information on an issue, contact NI and reference the ID number given in the document.
  • Workaround - Possible ways to work around the problem. The workarounds that appear in the document are not always tested by NI and are not guaranteed to resolve the issue. If a workaround refers you to the NI KnowledgeBase, visit www.ni.com/kb/ and enter the KnowledgeBase number in the search field to locate the specific document.
  • Reported Version - The earliest version of NI-RFSG in which the issue was reported. If you discover the issue appears in an earlier version of NI-RFSG than is reported in this field, report the discrepancy to NI to have the field updated.
  • Resolved Version - Version in which the issue was resolved or was no longer applicable. "N/A" indicates that the issue has not been resolved.
  • Date Added - The date the issue was added to the document (not the reported date).

Known Issues

ID Known Issue
383655

ADC microport lines can be double driven momentarily

The device's ADC and FPGA can momentarily double drive some ADC microport lines. The ADC microport is only tristated after CS_n and RD_n are deasserted AND the ADC detects a rising edge of the serial clock. When a read is performed, the clock is stopped prior to deasserting the CS and RD lines, which leaves the ADC actively driving the data bus. On a following write access, the host code enables the FPGA output driver prior to starting the ADC clock. During this period of time, the FPGA and ADC may drive into each other causing excessive current to flow.

Workaround: Alter the ADC microport read/write VI to send an extra clock cycle with CS/RD/WT deasserted ('1') either immediately before or immediately after any write or read transaction to tell the ADC to stop driving the data bus.
Reported Version: 1.6    Resolved Version: 1.7    Added: 08/05/2013
333614

Issues with LabVIEW 2010 Real-Time

If you are using LabVIEW 2010 and are deploying to a LabVIEW Real-Time target and you do not have the full version of LabVIEW Real-Time installed, your device may behave unexpectedly.

Workaround: Download and install the LabVIEW Real-Time 2010 f1 Patch.
Reported Version: 1.6    Resolved Version: 1.7    Added: 1/18/2012
137784

Cannot save the ni5640R Spectrum Analyzer VI for previous versions of LabVIEW.

If you use LabVIEW 8.6 and try to save the ni5640 Spectrum Analyzer VI to a previous version of LabVIEW such as LabVIEW 8.5, warnings are returned.

Workaround: N/A
Reported Version: 1.3    Resolved Version: N/A    Added: 11/04/2010
203715

When you enable and choose a CLIP for the DRAM socket, you cannot successfully compile when some Xilinx Options are all set to High.

In LabVIEW 2009 only, when you enable and choose a CLIP for the DRAM socket, you cannot successfully compile when the following Xilinx Options are all set to High:

Synthesis Optimization Effort
Level Map Overall Effort Level
Place and Route Overall Effort Level

Workaround: The Xilinx Options page in the FPGA Target Properties page is accessed by right-clicking the target in the Project Explorer window.
Reported Version: 1.4    Resolved Version: N/A    Added: 11/04/2010
256976

NI-5640R 1.3 and later includes a new FPGA I/O Node called DAC_Simultaneous_Reset that needs to be added to the target tree in older LabVIEW project files.

NI-5640R 1.3 and later includes a new FPGA I/O Node called DAC_Simultaneous_Reset.  The node must be added to the target tree in older LabVIEW project files. This node adds a new feature to the configuration loop that makes it easier to reset and synchronize the DACs.

Workaround: Complete the following steps to add the node to an earlier LabVIEW project file:
  1. Open LabVIEW project.
  2. Right-click the NI PCI-5640R target and select New»FPGA I/O.
  3. Under Available Resources, select Configuration»DAC_Simultaneous_Reset.
  4. Click Add.
  5. Click OK.
Reported Version: 1.3    Resolved Version: N/A    Added: 11/04/2010
257253

Cannot locate FPGA Examples.

LabVIEW FPGA examples cannot be located using the NI Example Finder.

Workaround: To locate these examples, refer to the table in the Installed Files section of the NI-5640 1.6 Readme or navigate to Start»All Programs»National Instruments»NI-5640R»Examples»<LabVIEW> and then open the FPGA folder.
Reported Version: 1.4    Resolved Version: N/A    Added: 11/04/2010
257263

Global variables stored in different locations.

Register and Circular Buffer data exchange policies use global variables created by the generated code behind the NI-5640R Asynchronous Programming nodes. If your LabVIEW project has not yet been saved, the global variables are stored on disk in a folder at <LabVIEW>\instr.lib\ni5640R\FPGA\AsyncWires\Globals. After your project is saved, the global variables are stored in a folder named Globals in the same folder where your project is stored. The globals are also placed in a LabVIEW project folder named Generated Globals. Deleting a global from the disk folder breaks the primitives that use it, but does not affect the bitfile produced by a previous compile. Causing that primitive to reconfigure itself also causes it to regenerate the globals.

Workaround: N/A
Reported Version: 1.4    Resolved Version: N/A    Added: 11/04/2010
257592

Host VIs do not open.

Host VIs developed in previous versions of LabVIEW do not run when initially opened in later versions of LabVIEW. For example, if you created a host VI in LabVIEW 8.2.1, the VI does not run when initially opened in any later version of LabVIEW such as LabVIEW 8.5, 8.6, 2009, 2010, or 2011. Similarly, if you created a host VI in LabVIEW 8.6, the VI does not run when initially opened in any later version of LabVIEW such as LabVIEW 2009, 2010, or 2011.

Workaround: For instructions about how to upgrade to LabVIEW 2010 or later, refer to the Upgrading the NI-5640R Driver topic of the NI-5640R Help File to run the VI.  To upgrade to LabVIEW 2009, complete the following steps to run the VI.
  1. Verify that LabVIEW is closed, and then copy the folder \examples\instr\ni5640R\FPGA\ni5640R Template\NI-5640R VIs over your project folder of the same name.
  2. Copy <LabVIEW>\examples\instr\ni5640R\FPGA\ni5640R Template\ni5640R Template.lvlib to your project folder.
  3. Open the copied ni5640R Template.lvlib.
  4. Select Save As, then click Rename in the resulting dialog box
  5. Rename ni5640R Template.lvlib to match the name of the original library.
Reported Version: 1.4    Resolved Version: N/A    Added: 11/04/2010
239701

ni5640R Configure RTSI.vi does not correctly configure.

ni5640R Configure RTSI.vi does not correctly configure RTSI 6 or RTSI 7 on the NI PXIe-5641R.

Workaround: N/A
Reported Version: 1.5    Resolved Version: N/A    Added: 07/29/2011
255638

Incorrect installation behavior when removing NI-5640R 1.5 and installing NI-5640R 1.4.

When removing NI-5640R 1.5 and installing NI-5640R 1.4, the installer tree may display a gray circle with a slash mark on white background for NI-5640R features.

Workaround: Complete the following steps to install LabVIEW-specific features.
  1. After installing LabVIEW, launch the Control Panel by selecting Start»Control Panel.
  2. Double-click Add or Remove Programs.
  3. Select National Instruments Software.
  4. Click Change/Remove.
  5. Select NI-RIO 3.5.1 from the dialog box that appears.
  6. Click Modify to run the installer.
All the necessary features required are automatically selected. All the requirements are now met for the NI-5640  installation and can be re-run.
Reported Version: 1.5    Resolved Version: 1.6    Added: 07/29/2011
309010

Temperature sensor reads may intermittently return incorrect data under high CPU load.

There is a timeout in sending commands to the temperature sensor, thereby causing the incorrect information to be read back.

Workaround: Run NI-5640R in LabVIEW 2011. This workaround does not apply to versions of LabVIEW 2010 and earlier.
Reported Version: 1.6    Resolved Version: N/A    Added: 07/29/2011
144748

NI 5640R/5641R streaming examples miscalculate rate when using two channels.

The NI PCI-5640R and NI PXIe-5651R Stream to Disk example miscalculates the streaming rate when two channels are enabled. The streaming rate is calculated by multiplying the block size with the number of bytes per sample and factoring that value in with the time it takes to fetch data. When two channels are enabled, the block size is doubled for the raw data polymorphic VI to account for two interleaved channels. This compensation is not accounted for in the preceding calculation.  Thus, half the rate is reported for streaming statistics.

Workaround: N/A
Reported Version: 1.3    Resolved Version: N/A    Added: 08/01/2011
191505

Errors when running many of the NI-5640R template VIs and examples in Execute VI on Development with Simulated I/O mode.

NI-5640R template VIs (and thereby the FPGA examples) utilize Session to Refnum VI.  When run in Execute VI on Development Computer with Simulated I/O mode, NI-RIO read and write VIs may not function properly when using the Session to Refnum VI.

Workaround: On your block diagram, place a Diagram Disable Structure around all of the configuration VIs. This allows you to emulate your code.
Reported Version: 1.4    Resolved Version: N/A    Added: 08/01/2011
256974

LabVIEW FPGA examples for the NI PCI-5640R and the NI PXIe-5641R are precompiled and configured only for a 32-bit Windows installation where they are installed under the default path, C:\Program Files\

The following issue is applicable only when using LabVIEW 2009 and earlier or when using Traditional Configuration Template VIs. 

LabVIEW FPGA examples for the NI PCI-5640R and the NI PXIe-5641R are precompiled and configured for a 32-bit Windows installation where they are installed under C:\Program Files\. When installing to a non-default path or when installing on a 64-bit Windows machine (to C:\Program Files (x86)\), the host-side VI must be edited to correctly locate the FPGA bitfile and bind its new path to the session typedef. The FPGA bitfiles do not need to be recompiled.

Workaround: To configure the host-side VI to use the pre-compiled bitfile, complete the following steps.

  1. Navigate to the example directory installed at <LabVIEW>\examples\instr\ni5640R\FPGA\<Device Name>\<Example Name>.
  2. Double-click <Example Name> .lvproj to open the project in LabVIEW.
  3. Double-click <Example Name> (HOST).lvproj to open the host-side VI.
  4. Open the block diagram for <Example Name> (HOST).vi.
  5. Right-click the Open FPGA VI Reference VI and select Configure Open FPGA VI Reference.
  6. Verify the Bind FPGA host reference to type definition checkbox is selected and the path specifies the NI-5640R VIs\ni5640R FPGA VI Reference.ctl file within the <Example Name> folder.
  7. Click OK and wait for the type definition to finish updating. The host VI is now fixed and executable.
  8. Select Save All.
Reported Version: Unknown    Resolved Version: N/A    Added: 08/01/2011

 

Contacting NI

Contact NI regarding this document or issues in the document. If you contact NI in regards to a specific issue, reference the ID number given in the document. The ID number contains the current issue ID number as well as the legacy ID number (use the current ID number when contacting NI). You can contact us through any of the normal support channels including phone, email, or the discussion forums. Visit the NI Website to contact us. Also contact us if you find a workaround for an issue that is not listed in the document.

Glossary of Terms

 

  • Bug ID - When an issue is reported to NI, you may be given this ID or find it on ni.com.  You may also find IDs posted by NI on the discussion forums or in KnowledgeBase articles.
  • Legacy ID – An older issue ID that refers to the same issue.  You may instead find this issue ID in older known issues documents.
  • Description - A few sentences which describe the problem. The brief description given does not necessarily describe the problem in full detail.
  • Workaround - Possible ways to work around the problem.
  • Reported Version - The earliest version in which the issue was reported.
  • Resolved Version - Version in which the issue was resolved or was no longer applicable. "N/A" indicates that the issue has not been resolved.
  • Date Added - The date the issue was added to the document (not the reported date).