LabVIEW Communications System Design Suite 1.0 and 1.1 Known Issues

Overview

This document contains the LabVIEW Communications System Design Suite 1.0 and 1.1 known issues that were discovered before and since the release of LabVIEW Communications System Design Suite 1.1. Not every issue known to NI will appear on this list; it is intended to only show the severe and more common issues that can be encountered.

Known Issues by Date

The following items are known issues in LabVIEW Communications System Design Suite 1.0 and 1.1 sorted by Date.

505995 Multiplication with Inverted Terminals Change the Output to Double When Wired
507482 The IIR Filter FPGA IP Example Does Not Run on Hardware
507503 FPGA Host Interface Example Returns Wrong Value In Indicator for USRP
537576 SISO TDD OFDM Video Stream Example Does Not Work
644853 LabVIEW Communications 1.1, or earlier, cannot load bitfiles created in later versions of LabVIEW Communications and LabVIEW NXG


ID Known Issue
505995

Return
Multiplication with Inverted Terminals Change the Output to Double When Wired
Multiplying with inverted terminals will always produce a double but it does not show it until the inputs are wired

Workaround: N/A

Reported Version: 1.0    Resolved Version: N/A    Added: 12/08/2014
507482

Return
The IIR Filter FPGA IP Example Does Not Run on Hardware
When opening the IIR Filter Example, the example runs in simulation. However, when switching to run the example in hardware, there are several issues: The 2nd Order IIR Filter.gvi shows up underneath the FPGA target which causes errors as the filter isn't supported on FPGA. In addition the Open FPGA VI has 'Run' set to False which produces an error. The Host.gvi has the close FPGA VI wired to True for 'abort?' which is not supported and will generate another error.

Workaround: N/A

Reported Version: 1.0    Resolved Version: 2.0    Added: 12/08/2014
507503

Return
FPGA Host Interface Example Returns Wrong Value In Indicator for USRP
When running the FPGA Host Interface Example, the example reads a control 'x' and writes the value of 'x+1' to an indicator. However, the USRP portion of example shows that the indicator is returning 'x' in the 'x+1' indicator.

Workaround: You can rebuild another example based off of the USRP example that points the 'x+1' value to the indicator instead of the 'x' value or use one of the other examples.

Reported Version: 1.0    Resolved Version: 2.0    Added: 12/08/2014
537576

Return
SISO TDD OFDM Video Stream Example Does Not Work
When running the batch script associated with SISO TDD OFDM Video Stream example, the video loopback fails in VLC.

Workaround: Use an older version of VLC (2.1.5 or earlier).

Reported Version: 1.0    Resolved Version: N/A    Added: 09/01/2015
644853

Return
LabVIEW Communications 1.1, or earlier, cannot load bitfiles created in later versions of LabVIEW Communications and LabVIEW NXG
Bitfiles created in LabVIEW Communications 2.0/NXG 1.0, or later, will fail to load in earlier versions of a LabVIEW Communications host VI with the message, “This version of the bitfile is newer than the current version of the application”.

Workaround: N/A

Reported Version: 1.1    Resolved Version: N/A    Added: 05/01/2017



Known Issues by Category

The following items are known issues in LabVIEW Communications System Design Suite 1.0 and 1.1  sorted by Category.

Compatibility
644853 LabVIEW Communications 1.1, and earlier, cannot load bitfiles created in later versions of LabVIEW Communications and LabVIEW NXG
Example Programs
507482 The IIR Filter FPGA IP Example Does Not Run on Hardware
507503 FPGA Host Interface Example Returns Wrong Value In Indicator for USRP
537576 SISO TDD OFDM Video Stream Example Does Not Work
Functions, VIs, and Express VIs
505995 Multiplication with Inverted Terminals Change the Output to Double When Wired


ID Known Issue
Compatibility
644853

Return
LabVIEW Communications 1.1, and earlier, cannot load bitfiles created in later versions of LabVIEW Communications and LabVIEW NXG
Bitfiles created in LabVIEW Communications 2.0/NXG 2.0, or later, will fail to load in earlier versions of a LabVIEW Communications host VI with the message, “This version of the bitfile is newer than the current version of the application”.

Workaround: N/A

Reported Version: 1.1    Resolved Version: N/A    Added: 05/01/2017
Example Programs
507482

Return
The IIR Filter FPGA IP Example Does Not Run on Hardware
When opening the IIR Filter Example, the example runs in simulation. However, when switching to run the example in hardware, there are several issues: The 2nd Order IIR Filter.gvi shows up underneath the FPGA target which causes errors as the filter isn't supported on FPGA. In addition the Open FPGA VI has 'Run' set to False which produces an error. The Host.gvi has the close FPGA VI wired to True for 'abort?' which is not supported and will generate another error.

Workaround: N/A

Reported Version: 1.0    Resolved Version: 2.0    Added: 12/08/2014
507503

Return
FPGA Host Interface Example Returns Wrong Value In Indicator for USRP
When running the FPGA Host Interface Example, the example reads a control 'x' and writes the value of 'x+1' to an indicator. However, the USRP portion of example shows that the indicator is returning 'x' in the 'x+1' indicator.

Workaround: You can rebuild another example based off of the USRP example that points the 'x+1' value to the indicator instead of the 'x' value or use one of the other examples.

Reported Version: 1.0    Resolved Version: 2.0    Added: 12/08/2014
537576

Return
SISO TDD OFDM Video Stream Example Does Not Work
When running the batch script associated with SISO TDD OFDM Video Stream example, the video loopback fails in VLC.

Workaround: Use an older version of VLC (2.1.5 or earlier).

Reported Version: 1.0    Resolved Version: N/A    Added: 09/01/2015
Functions, VIs, and Express VIs
505995

Return
Multiplication with Inverted Terminals Change the Output to Double When Wired
Multiplying with inverted terminals will always produce a double but it does not show it until the inputs are wired

Workaround: N/A

Reported Version: 1.0    Resolved Version: N/A    Added: 12/08/2014

Document last updated on 6/5/2017

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).