Home Support Documentation Bugs

NI-FGEN 21.8 Known Issues

Created Jun 22, 2023

Overview

This document contains the NI-FGEN known issues that were discovered before and since the release of NI-FGEN 21.8. Known issues are performance issues or technical bugs that NI has acknowledged exist within this version of the product

 

Not every issue known to NI appears on this list; it is intended to show the most severe and common issues that you may encounter and provide workarounds when possible. Other technical issues that you may encounter could occur through normal product use or system compatibility issues. You may find more information on these issues in NI’s Product Documentation, Knowledgebase, or Community.

Bug Number

Legacy ID

Description

Details
228011 251164

A protocol violation error occurs when using an NI PXIe-1075 chassis

When routing triggers across segments on the NI PXIe-1075 chassis, a protocol violation error may occur. The NI PXIe-1075 has three bus segments: slots 1 through 6, slots 7 through 12, and slots 13 through 18. If the devices are located in different segments, this issue may occur. Some features, such as NI-TClk, when used for synchronization applications, internally route triggers.

Workaround:

Visit ni.com/kb and search for 5FTGSP0O for information about how to work around this issue.

Reported Version:

NI-FGEN 2.8

Resolved Version:

N/A

Added:

Oct 23, 2011
227804 640888

Modulation Toolkit NI-FGEN examples do not work on PXIe-5413/5423/5433 waveform generators

Workaround:

PXIe-5413/5423/5433 waveform generators are not intended for modulation applications. Use Use an NI RF Analog Signal Generator and NI-RFSG.

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
227853 624206

Reset button not available in MAX for PXIe-5413/5423/5433 waveform generators

Workaround:

Use the niFgen Reset Device VI or niFgen_ResetDevice function.

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
227788 631405

Common MAX features are not supported on PXIe-5413/5423/5433 waveform generators: Test Panels, Device Pinouts, Device Routes

Workaround:

Refer to the NI Signal Generators Help for pinout and routes documentation for PXIe-5413/5423/5433 waveform generators.

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
227806 642679

PFI lines on PXIe-5450 and PXIe-5451 waveform generators drive a short pulse when NI-FGEN initialize functions are called with the reset device parameter set to False

Workaround:

Set the reset device parameter to True when initializing an NI-FGEN session to a PXIe-5450 and PXIe-5451 waveform generator.

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
227817 637708

niFgen ni5433 External Calibration API is not translated to Japanese in LabVIEW

Workaround:

Refer to the NI Signal Generators Help for Japanese documentation of the niFgen ni5433 External Calibration API.

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
227814 632366

Initializing and closing an NI-FGEN session in a loop leaks memory for NI-DAQmx-Based Waveform Generators

Workaround:

There is currently no known workaround for this issue.

Reported Version:

NI-FGEN 15.0

Resolved Version:

N/A

Added:

May 8, 2017
227795 642040

Last value is held for a few samples before jumping to idle value when Wait Behavior is set to "Hold Last Value" and Idle Behavior is set to "Jump To Value", only if waveform size is not a multiple of 2 (PXIe-5413/5423) or multiple of 4 (PXIe-5433)

The PXIe-5413/5423/5433 waveform generator firmware will incorrectly be in the "Wait Behavior" state, instead of the "Idle Behavior" state, for a few extra samples at the end of the waveform if the waveform size is not a multiple of 2 (PXIe-5413/5423) or multiple of 4 (PXIe-5433). By default, both wait behavior and idle behavior are configured for the same "Hold Last Value" option. This issue is only noticeable if the wait and idle behaviors are configured to be different.

The issue is in the ni5433k.sys kernel library and the instrument firmware.

Workaround:

Configure wait and idle behaviors to be the same.

Use a waveform size that is a multiple of 2 (PXIe-5413/5423) or multiple of 4 (PXIe-5433).

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
227855 434355

Reading Current Temp hardware property using NI System Config API loop leaks memory for NI-DAQmx-based waveform generators

Workaround:

Initialize an NI-FGEN session and use the read current temperature function.

Reported Version:

NI-FGEN 2.9

Resolved Version:

N/A

Added:

May 8, 2017
227755 644381

Japanese characters not allowed in waveform names or script names on PXIe-5413/5423/5433 waveform generators

NI-DAQmx-based waveform generators allow waveform names with Japanese characters, but on PXIe-5413/5423/5433 waveform generators the NI-FGEN API will report error -1074101561 (0xBFFA82C7): "The script contains an invalid character or symbol. Replace the invalid character with a valid symbol or alphanumeric character."

Workaround:

Change waveform names to use only characters from the English alphabet.

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
227744 687100

Synchronization between the PXIe-5413/5423/5433 and the PXIe-5442 does not work in Standard Function output mode and with the PXIe-5442 as the master device

Workaround:

To synchronize the PXIe-5442 and a PXIe-5413/5423/5433 in Standard Function output mode, use the PXIe-5413/5423/5433 as the master device or read the TClk period and then set the minimum TClk period to a higher value by calling niTClk Synchronize.

Reported Version:

NI-FGEN 18.1

Resolved Version:

N/A

Added:

May 17, 2018
227830 641019

Device data underflow failure occurs when generating waveforms with a size of 196 or 200 in Arbitrary Sequence mode on the PXI-5422 waveform generator

The PXI-5422 product documentation states that the minimum supported waveform size is 192 samples and that larger values that are multiples of 4 are also supported. However, a device data underflow error occurs when using waveform sizes of 196 and 200.

Workaround:

Double the number of samples on the host and double the sample rate.

Reported Version:

NI-FGEN 15.0

Resolved Version:

N/A

Added:

May 8, 2017
227747 629281

Device driver enters unusable software state if VI execution is aborted while running external calibration on PXIe-5413/5423/5433 waveform generators

Workaround:

There is currently no known workaround for this issue.

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
227751 643566

Channels do not stop at the same time when aborting arbitrary waveform generation on two-channel PXIe-5413/5423/5433 waveform generators

When aborting generation on a session that is controlling two channels on the same waveform generator, the abort message is sent by NI-FGEN at two different times: once for channel 0 and then again for channel 1. In standard function mode, the output signal will transition to the "Idle Behavior" state when the abort message for the first channel is applied, but this is not the case for arbitrary waveform mode.

The issue is in the ni5433k.sys kernel library and the instrument firmware.

Workaround:

Switch to a flat DC waveform before aborting or modify the application to not require an abort. Abort is not necessary on scripts that do not repeat forever or in single trigger mode for arbitrary waveforms or arbitrary sequences.

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
876025 644978

Code Using API in niFgenObsolete.llb and Converted for LabVIEW NXG Is Broken

Workaround:

There is currently no known workaround for this issue.

Reported Version:

NI-FGEN 17.0

Resolved Version:

N/A

Added:

May 18, 2017
537276 643582

Write waveform function times out when streaming on PXIe-5413/5423/5433 waveform generators if the sample rate is below 256 kS/s or if the sample rate is below 4.5 MS/s and the allocated waveform size is below 1.2 k samples

Workaround:

Duplicate samples on the host and increase the sample rate of the waveform generator accordingly.

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
537280 623127

NI-FGEN Express VIs do not detect PXIe-5413/5423/5433 waveform generators

PXIe-5413/5423/5433 waveform generators are not listed in the Device drop-down menu of the Express VI properties dialog.

Workaround:

Start with NI-FGEN examples and create a SubVI to suit your application needs.

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
537291 642393

Options String "DriverSetup=MemorySize:" doesn't simulate memory size correctly on PXIe-5413/5423/5433 waveform generators

The value passed for the MemorySize driver setup option is ignored in the simulated session. The simulation logic assumes 128 MB of usable memory per channel for PXIe-5413 and PXIe-5423 waveform generators, and 512 MB of usable memory per channel for PXIe-5433 waveform generators. The issue is in the ni5433NIFgenPlugin.dll library.

Workaround:

There is currently no known workaround for this issue.

Reported Version:

NI-FGEN 17.1

Resolved Version:

N/A

Added:

May 8, 2017
1622796

Detailed help for NI-FGEN API is not available in LabVIEW from context help or right-click context menu

Workaround:

The detailed help can be accessed from the "Help" menu by clicking on the "NI Signal Generators Help..." option.

Reported Version:

NI-FGEN 21.3

Resolved Version:

N/A

Added:

Oct 20, 2021
1931191

No device names appear when initializing a session with NI-FGEN on Linux Desktop

When selecting a resource name with niFGEN Initialize.vi in LabVIEW on Linux Desktop, the drop-down menu for selecting resources appears empty and you cannot select a device that is in your system.


Workaround:

Manually enter the resource name for the device you want to use. Use the Hardware Configuration Utility or NI System Configuration software to retrieve the resource name for any devices in the system.

Reported Version:

NI-FGEN 21.8

Resolved Version:

N/A

Added:

Apr 19, 2022
2061458

Using the niFgen_WriteP2PEndpointI16 or niFgen Write P2P Endpoint I16 function causes a hang on SMAP-capable Linux systems

Using the niFgen_WriteP2PEndpointI16 C function or the niFgen Write P2P Endpoint I16 LabVIEW VI causes a hang on SMAP-capable Linux systems.

This is a function used "to write initial data from the host to the endpoint before starting generation to avoid an underflow at start." It is only relevant to applications using Peer-to-Peer (P2P) streaming, usually in tandem with a FlexRIO device.



Workaround:

Disable SMAP on Linux. (refer to: External Link- How can I enable/disable SMAP)

Reported Version:

NI-FGEN 21.8

Resolved Version:

N/A

Added:

Aug 3, 2022

Final Time Issue Listed

Issues found in this section will not be listed in future known issues documents for this product.

There are currently no issues to list.

Additional Resources

Explore Support Content and Product Documentation 

 

 

Ask the NI Community

 

 

Request Support from an Engineer

 

A valid service agreement may be required, and support options vary by country

 

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).