Skip to end of metadata Go to start of metadata

Advanced Design System 2022 Update 2.0 Release Notes

For general information about Advanced Design System (ADS), visit ADS webpage at http://www.keysight.com/find/eesof-ads.

Contents

• Feature Updates
• Known Issues

Feature Updates

• Design Editing and Layout
• Data Display
• File and Workspace Management Tools
• Circuit Simulation
• HSD Design

• EM Simulation

• Verification

• Power Electronics

• Signal Processing

• Virtual Test Bench (VTB)

• Licensing

• Documentation

Design Editing and Layout

• General Enhancements
  
  • During trace route editing, the center-line length of the selected segment(s) is re-calculated and displayed along the mouse movements.
  • Enhanced substrate editor interface to better display layer names and cell names.

  • EBondArray component now supports 'Virtual Layer' from Smart Mount components. Virtual Layer syntax is the same as used for a Bond Wire component to attach to a Smart Mount. For more information, see Smart Mount for Multi-Technology.

  • Enhanced OA rectangular via creation's "Draw Rectangle" mode to optionally re-compute enclosure. For more information, see Define and Insert Rectangular Vias and db_create_rectangular_via_fill_area().

  • For interoperable design containing inherited connections, ADS is enhanced to take into account the override attribute associated with those connections and netlist accordingly.

  • Environment variable "USE_EXPERIMENTAL_3D_FEATURES" can be set to TRUE to enable an experimental 3D feature as below:

    • If "USE_EXPERIMENTAL_3D_FEATURES" is set to TRUE, mouse over an instance (other than PCB via or pad) will result in 3D bounding cuboid to be drawn around the instance instead of highlighting all edges (including hidden edges) of that instance.

• Design Import and Export
  • A new GDSII export option for specifying the maximum number of vertices per polygon has been added. For more information, see Exporting an ADS Design to GDSII .

  • DXF export of hierarchical designs can support sub-cell names containing the '.' character.
    

• AEL Interfaces

  • Added AEL functions for starting, managing, and communicating with external programs. For more information, see Process Functions - Overview.
    

  • New AEL functions, db_rebuild_composite_object() and db_rebuild_selected_composite_objects(), are added for rebuilding composite objects like planes and interconnect.

  • New AEL functions, db_mirror_x_selected(), db_mirror_y_selected(), db_copy_and_paste_selected(), are added for supporting editing operations on the selected objected in the specified designContext.

  Back to Feature Updates

Data Display

• Data Viewing, Analysis and Manipulation

  • A Line marker is automatically updated when the variable(s) it depends on, either directly or indirectly, change.

  • Variable Explorer and Expression Managers are improved in their quality and usability.

  • Performance improvements have been made to Data Display when the user updates equations. This is particularly noticeable when updated equations produce a large amount of data, have several dependencies, and the Expression Manager and Variable Explorer are open.

  • Improved error messages when AEL expressions fail to evaluate.

  • The Expression Manager presents improved Dataset organization. For more information, see Expression Manager.

  • The Python installation inside ADS has been upgraded from Python 2.7 to Python 3.8.8.  If you have customized your start scripts to run ADS, you may need to add an additional directory, %HPEESOF_DIR%\tools\python to your PATH on Windows, or $HPEESOF_DIR/tools/python/lib to your LD_LIBRARY_PATH on Linux.

For more information, see Data Display.

Known Issues

  Back to Feature Updates

File and Workspace Management Tools

• General Enhancements

  • Custom AEL scripts can be optionally added on to  ADS based on the configuration specified in the environment variable, ADS_CUSTOM_DIR. For more information, see Managing ADS Application Features and User Addons.

• AEL Interfaces

  • The VS Code extension for AEL language has been published to the Visual Studio marketplace that supports AEL editing and debugging capabilities. For more information, see Visual Studio Code AEL Editor and Debugger.

  • A new AEL, de_dds_print_all_pages_to_pdf(), is added for generating a PDF file from a specified DDS file.

  • A new AEL, de_set_printer_file_dpi(), is added for setting the resolution on the image output of BMP, JPG, PNG, PPM and XPM format files. Note that PDF and SVG format files are unchanged.

  Back to Feature Updates

Circuit Simulation

• General

  • The accuracy of distortion EMV at low input power is improved.

  • In IP encoder, the options for end-users to access internal currents or voltages in the encrypted models are added.

  • S-Parameter circuit simulation writes port names to dataset.

  • Devices with prefix "x" support model cards, not only subcircuits. 

  • Circuit simulation in PathWave Design Cloud, wildcards are supported for user-specified files to upload.

  • Added a new feature to the S-Parameter toolkit, which enables you to add limit lines in the rectangular plot in the toolkit. The violation of those data points in the S-Parameter data with respect to the limit line can also be identified and highlighted which make it much more convenient to identify the defects in the circuit behavior.

• Obsolescence Announcement

  • The RF System Budget Analysis is deprecated in ADS 2022 Update 2.0, and will be removed in ADS 2023.

• ElectroThermal

  • Users can now use information from an LVS job file (previous run of LVS) to correct netlist name mismatches with layout names in ETH. These mismatches occur due to interoperability with other systems that can change instance names. Earlier, this mapping of mismatched names had to be prepared manually. The current feature automates this for simple non synchronized designs.

    Limitation: The feature does not support model name suffixes in the instance names. 

Known Issues

  Back to Feature Updates

HSD Design

• Memory Designer

  • New CA/Data Bus Pre-Layout Model Designer (W3077E) - Wizard style workflow to design CA/Data Bus pre-layout models.

  • Supports custom waveform collection setup - Specify time or UI period in storing waveform data.

  • New Limit Line for S-Parameter Toolkit and TDR improvements.
  • Supports IBIS BIRD 195.1 and 203.

• SerDes Designs

  • New PCIe Gen5 Reference channel model component, requires W3082E license.

  • Spec-based PCIe Gen5 and Gen6 Tx and Rx AMI models.
  • New USB4 V2 (PAM3) AMI Model Builder (W3081E).
  • Spec-based USB4 V1 (NZR) Tx and Rx AMI Models.
  • Supports GetWave AMI models and Rx_Diff components in Tx_Waveform_AMI workflow.
  • New PCIe Gen6 CTLE presets.
  • New Limit Line for S-Parameter Toolkit and TDR improvements.
  • Supports IBIS BIRD 195.1 and 203.

• EM-SIPro/PIPro

  • PIPro
    • PIPro Conducted EMI (CEMI) Analysis can now:
      • Allows surface fields to be simulated for display in the results. This provides near field information that can be animated based on the Harmonic Balance CEMI results for identifying potential sources of radiation.
      • Work with user defined mesh settings.
    • Csv files for import of the Target Impedance mask(s) in PIPro Decap Optimization Target table need to have a header line with the entries quoted that contain a comma (i.e. Z(i,j) [ohm]) using double quotes.

      For Example:

      Freq [Hz];"Z [ohm]";"Z(1,1) [ohm]";"Z(2,2) [ohm]";"Z(3,3) [ohm]";...

      Commas or semi-columns can be used as field delimiter in the csv file.

      The Impedance mask import in the PDN plot only allows floating point values in the csv file. The importer for the Decap Optimization Target table can have entries containing values followed by unit multipliers.

    • Menu option is now available to add a selected inductor to a switching VRM setup.

    • S-Parameter viewer has been added to the CEMI analysis simulation results.

    • PDN impedance mask import/export bug fix to better support individual impedance masks for each sink in de-cap optimization.

    • Remote HPC parallel simulations were incorrectly pulling N-2 licenses, now it correctly checks out N-1 licenses for N parallel jobs.

    • Import resolution issue for via center point causing failures has been resolved by allowing a +/-1 mil resolution of the circle center point as seen by ADS or SIPI. 

  • SIPro
    • Fixed an issue that appears during loading surface roughness information from substrate stack into SIPro/RFPro.
  • Import & Export
    • Minor bug fix for ADFI importing with negatively defined plane layer objects.

• Obsolescence Announcement

  • The Encrypted HSPICE is obsoleted.
    

Known Issues

  Back to Feature Updates

EM Simulation

• RFPro Platform

  • A parameter sweep can be defined as part of the analysis setup. The parameter(s) can be used to set ambient conditions, process variations, selected simulator options or 3D component parameters. Sweeping a parameter used to set an OpenAccess component parameter is not yet supported!

  • The identity of derived layer shapes is now preserved. Previously, a derived layer shape was considered as a top-level shape.

  • The markup for an encrypted 3D component, a dotted bounding box, is no longer selectable when picking positions.

  • Command line utilities are provided to post process .sio result files

Known Issues

  Back to Feature Updates

Verification

• Design Rule Check

  • Performance improvements for oversize/undersize on complex polygons.

  For more information, see Design Rule Checker (DRC).

• Layout Versus Schematic

  • Device Recognition rule file syntax errors are displayed in the LVS Dialog.

  • Batch LVS supports a job name.
  • Device Recognition report shows the instance name from the layout for layouts that contain instances.
    

  • The function dve_check_component_parameter() supports CDF based components.

  For more information, see Layout Versus Schematic (LVS).

• PDK Validator

  • Double clicking on the vertical partition in the dialog restores the default width of the column.

  For more information, see PDK Validator .

Known Issues

  Back to Feature Updates

Power Electronics

• Power Electronics Library
  

  • Added P-type option to the Generic Switching MOSFET Model(Simple MOSFET Model) present in the Power Electronics Library.

• Examples

  • New examples added in this release:

    • Simulation of closed-loop Buck-Boost converter Using PEPro: This example workspace demonstrates PEPro workflow in designing a Buck-Boost converter with post-layout verification.
    • Designing a PID Compensator Using ADS: This example helps us to design an analog PID compensator for a DC-DC converter.
    • Designing a Closed-Loop Non-ideal Buck Converter Using ADS: This example workspace demonstrates how to design a closed-loop Buck Converter with losses and PID Compensation.
    • Simulation of Open-loop Non-ideal Sepic Converter using ADS: This example workspace demonstrates the use of Keysight ADS power electronics to simulate an Open -loop Sepic converter.
    • Simulation of Open-Loop Non-ideal Cuk Converter Using ADS: This example workspace demonstrates the use of Keysight ADS power electronics to simulate an open-loop Cuk converter.
    • Simulation of Open-Loop Non-ideal Buck-Boost Converter Using ADS: This example workspace demonstrates the use of Keysight ADS power electronics to simulate an open-loop Boost converter.
    • Simulation of Open-Loop Non-ideal Boost Converter Using ADS: This example workspace demonstrates the use of Keysight ADS power electronics to simulate an open-loop Boost converter.
    • Simulation of Open-Loop Non-ideal Bridge Converter Using ADS: This example workspace demonstrates the use of Keysight ADS power electronics to simulate an open-loop Bridge converter.
  For more information, see  Power Electronics Examples .

Known Issues

  Back to Feature Updates

Signal Processing

• Obsolescence Announcement

  • The DSPSource related features (e.g. DSP_To_ARF, 3GPPFDD_Dn/UpLink_src, TDSCDMA_Dn/UpLink_Src, WLAN_802_11a/b_Src) is deprecated and will be removed in ADS 2023 release.

  Back to Feature Updates

Virtual Test Bench (VTB)

For general information about Virtual Test Bench (VTB), visit the VTB webpage at http://www.keysight.com/find/virtual-test-bench.

• From ADS 2022:
  • Verification Test Bench (VTB) is now called Virtual Test Bench (VTB).
  • To install files that are required for the VTB functionality along with the ADS installer, you need to download a separate VTB installer for both Windows and Linux and manually install the VTB.
  • If you have already installed ADS and find VTB functionality is missing, then you need to download and manually install the VTB.
  • If you want to uninstall, then you need to manually uninstall VTB separately for both Windows and Linux.

For more information, see  VTB documentation.

Known Issues

  Back to Feature Updates

Licensing

• ADS 2022 Update 2.0 requires: a) the version 2022.02 of the EEsof EDA licensing software, b) a minimum code-word version 2022.02 or above, and c) the licensing server software, lmgrd and agileesofd, to be upgraded to at least the same versions as what are included in EEsof EDA Licensing software 2022.02.  ADS 2022 Update 2.0 will not start if any of these requirements is not met. Refer to the License Codeword Version Compatibility Table.
• In the EEsof EDA License Tools version 2022.02, licensing vendor daemon ( agileesofd ) is integrated with FlexNet FNP 11.18.1 version (Windows) and FlexNet FNP 11.18.1 version (Linux) of FlexNet license manager daemon ( lmgrd ). For the Windows platform, ADS installer will automatically set up these two new license server daemons by default for the local node-locked license users; for the Linux platform, you need to follow the Setting Up Licenses on Linux instruction to complete the licensing configuration process. For more details, refer to Licensing (For Administrators).

Known Issues

  Back to Feature Updates

Documentation

Known Issues

  Back to Feature Updates

Known Issues

Design and Technology Management

• Cadence Virtuoso IC version 6.1.7 is not supported on RHEL 8 platform.

• Using ADS 2020 with pycell studio 2018 (PyCell Studio Packages: Release O-2018.09) might prompt you an OA version mismatch warning message on the linux terminal. However, there is no impact on the iPDK flow in ADS.
  Linux terminal message:
  Requested minor API version '518', which is supported by OpenAccess build '22.50.030' is newer than the minor API version '514' of the shared library of OpenAccess build '22.50.043'.

• The Express Pcell plugin that comes with Virtuoso IC version 6.1.8 does not work with ADS 2020 due to an OpenAccess version mismatch, but the Express Pcell plugin will work with ADS 2020 Update 1.0 and 2.0.  
  Workarounds: 

  • When running ADS 2020, set the LD_LIBRARY_PATH environment variable path to point to the directory from IC version 6.1.7.

  • Upgrade to ADS 2020 Update 1.0

• The Express Pcell plugin that comes with older versions of Virtuoso IC version 6.1.7 may crash during a simulation with ADS 2020 Update 2.0 due to a third party incompatibility but may work with newer versions above IC version 6.17_722 and up.

• AEL constants are protected and should not be modified in any DDS expressions.  An AEL error will be issued in case an attempt to modify an AEL constant occurs.

• Python Datalink
  • When using Connection Expert 2019 connected to Lan Instruments, there may be error messages during dl_visa_query() and dl_visa_write().
  • Exceed on Demand: Note that in some cases, EoD settings may need to be configured to properly display Spyder.  Please contact your EoD support representative for additional guidance.

  Back to Feature Updates

Design Guide

• Unable to unarchive HDMI design guide from the Schematic view (DesignGuide > HDMI).
  Workarounds:
  • Unarchvie using the old ADS version.
  • HDMI design guide will open in case it is already unarchived.
• Simulating the "1_Sim_CA" design in the DDR4 CTB design guide prompts the netlist error.
  Workaround: Open the schematic design "PatternGen_CA_Continuous" and arrange the pin numbers in order.

• Simulating of schematics in the HDMI_Link_Simulation design guide prompt the netlist error.
  Workaround: Open the schematic design “HDMI_Diff_RX” and arrange the pin numbers order in order.

Design Kits

• A design created using ADS2020 Non-Linear Demo Kit (NLD) and using NLD discontinuities like demo_bendP, demo_stepP, demo_teeP, etc. will not work as expected in ADS 2021.
  Workaround – In ADS 2021, either update the design with the latest NLD i.e. NLD shipped along with ADS 2021; or continue to use the NLD that was shipped with ADS 2020.

  Back to Feature Updates

Circuit Simulation

• General

  • When using GoldenGate in ADS 2020 Update 2.0, some of the library files of RFIC cockpit options are not getting loaded due to license incompatibility. It is recommended to use ADS 2020 Update 1 when using GoldenGate in ADS.
    For details on license compatibility, see License Codeword Version Compatibility.

  • Simulation Manager may not work on Windows and throw exceptions for some designs.

  • ADS 2019 will not be compatible with Verilog-A files, which have been encrypted before ADS 2019. There is no change for non-encrypted Verilog-A files.

  • TMI models are supported for pure Hspice syntax only. The support of hybrid syntax (mixing Hspice and Spectre) is planned for a future release. 
  • BSIMSOI models using TMI modeling is not supported yet. Classical BSIMSOI models are supported as before.
  • TMI Aging simulations are not supported 

• ElectroThermal

  • In ADS, electro thermal simulation is assisted to automatically turn off the HBAHB and TAHB options for single tone HB. However, the electro thermal simulation for multi-tone HB needs a manual intervention to turn off the HBAHB and TAHB options for reporting voltage data.

  • You may not be able to start a Transient/Envelope Electro-Thermal (ETH) simulation only when the same testbench is open in the viewer of Transient/Envelope thermal results. You need to close the viewer before launching a Transient/Envelope ETH simulation.

  • The electrothermal simulation will not run on designs created using Smart Mount for Multi-Technology feature.

  • Paths set while configuring the ETH controller may need to be updated when the workspace is moved across operating systems.

  • On a fresh Linux machine, electrothermal simulation fails with the following error message:

    Heatwave returned an unknown error code 127.

    Workaround: The error could be due to missing packages, for example, libpng12. Verify your system meets the requirements using the linux_sys_check.sh script. For more information,  see Checking Installed RPM Files and the Operating System Version.

  • If you get licensing errors while running thermal simulation, you may need the following workaround.
    Workaround: Rename the file  $HOME/.eesofrc. For example,  $HOME/.eesofrc-orig.

  • Electrothermal does not support remote simulation, batch simulation, Monte Carlo, tuning, Optimization, and Measurement Equations. Also, you cannot sweep directly on the DC controller.

  • All libraries referenced in a layout should use the same layout resolution, namely the OA database units (DBU) per user unit (UU).

  • You cannot run both a transient and envelope simulation on the same design from one testbench.

  • The calculation of power dissipation from passive components other than resistors may not be correct in harmonic balance simulations.

  • Electrothermal does not support the transient or envelope simulation that is controlled by a ParamSweep.  

  • If you get "Maximum timestep reduced to half of shortest transmission line delay " warning, it can lead to transient simulation to not converge   
    Workaround: Unselect "Limit timestep for Transmission Line" option on Time Setup tab of Tran component to get it work.

  • On Linux, if you specify the THERMAL_DIRECTORY variable in eesof_lib.cfg file using backward slash (..\thermal), the thermal simulation does not run properly.
    Workaround: Specify the THERMAL_DIRECTORY variable using forward slash (../thermal) instead of backward slash.

  • The ETH viewer does not support 4K displays. A few instances of text and icons may appear distorted. 

  • You receive an error message in substrate editor that you cannot use the same layer number more than once. You can safely ignore this error during thermal technology export.

  • On a fresh Windows 10 system, Electrothermal simulation terminates with an error. 
    Workaround: Install the following Microsoft Visual C++ runtime components: 

    http://www.microsoft.com/en-in/download/details.aspx?id=30679 
    

• DDR Design 

  • You receive an error message to check port numbering when performing simulation with SnP component for differential configuration.
    Workaround: Select the first option in Pin Configuration for the SnP component.

  Back to Feature Updates 

HSD Design

• SerDes

  • You receive an error message when runtime libraries for some of the ADS example ibs files (for old AMI models) are unable to get installed automatically during the ADS install.  The error appears eventhough the ibs file is supported on specific platform. 
    Workaround: Microsoft Visual C++ 2010 runtime library is required to run the dll files. Download the following library if it is not installed:

  • https://www.microsoft.com/en-in/download/details.aspx?id=26999

• EM-SI/EM-PI
  • SIPro/PIPro, Via Designer 
    
    • On Windows 10 with Intel HD graphics, Via Designer may show an error message ‘Failed to use the connection between ADS and Via Designer.’  This has been isolated to the latest release of Intel HD Graphics drivers (23.xx.xx.xxxx).
      Workaround: Downgrading the graphics driver to the previously recommended driver resolves this issue (e.g., 22.20.16.4836, A05).
    • DirectX 9 as a graphics driver is no longer supported. DirectX 11 is thus be used by default. Run "diagdx" to verify which DirectX version is supported on your system.
  • SIPro/PIPro
    • ADS 2020 is not compatible with the latest available Samsung component models released in June 2018. The support for the component models is planned to be added in an upcoming update release.
    • Simulation failure when using components with S-parameter models or for which the model is defined using a lib/cel/view in case the Updating model does not require new simulation is not set. As a workaround, turn on the option. For PI-AC simulations, the options are turned on by default, for SIPro, this needs to be turned on explicitly.

    • If you run SIPro/PIPro on a fresh machine with Suse 11 or Redhat 6 installed, you may encounter the critical error "EMPro exited unexpectedly during execution." This is related to the graphics driver software.
      Workaround: Upgrade to the latest vendor-specific drivers and OpenGL libraries for the graphics card.
      Alternative workaround: Run the following commands:

      cd $HPEESOF_DIR/fem/2020.20/linux_x86_64/bin
      ./startempro --personality=sipi--driver=x11

      Ignore any license-related error messages that may show up on executing these commands. The driver setting is saved per personality for future sessions.

    • With split domains on, there are no results available until simulation results are available from the last simulation, or even after the simulation.

    • Cadence® Allegro®(SPB 17.2 and SPB 17.4) is not supported on RHEL 8. As a result, the BRD Import and ADFI Export does not work on RHEL 8.

  • PIPro
    • PIPro DC IR Drop switching VRM setups can now include multiple phases.  Entering more than one phase in the PIPro VRM properties will result in additional phases being added to the VRM in the analysis.
    • The power graph is not correct when VRM's or Sinks are defined, starting from pin definitions. All the other result data is correct. This issue does not occur when VRMs and sinks are defined from component instances.
    • PIPro Conducted EMI (CEMI) Analysis now allows surface fields to be simulated for display in the results.  This provides near field information that can be animated based on the Harmonic Balance CEMI results for identifying potential sources of radiation.
    • S-Parameter viewer has been added to the CEMI analysis simulation results.
    • PIPro Conducted EMI (CEMI) Analysis can now work with user defined mesh settings.
    • Menu option is now available to add a selected inductor to a switching VRM setup.
    • PDN impedance mask import/export bug fix to better support individual impedance masks for each sink in de-cap optimization.
    • Remote HPC parallel simulations were incorrectly pulling N-2 licenses, now it correctly checks out N-1 licenses for N parallel jobs.
    • Import resolution issue for via center point causing failures has been resolved by allowing a +/-1 mil resolution of the circle center point as seen by ADS or SIPI. 

  Back to Feature Updates

EM Simulation

• General

  • In a vncserver session running on an RHEL8.4 platform, you may encounter the critical error "EMPro exited unexpectedly during execution." This is related to the graphics driver software contained in the mesa-*.x86_64.20.3.3-2.el8 packages.
    Workaround: downgrade the packages to the previous version using the following command:

     sudo yum downgrade mesa-*

    The packages mesa-*-20.1.4-1.el8.x86_64, and the dependent llvm package work.

• RFPro

  • The FEM and Momentum Generation 2 flows are state-of-the-art solvers but still evolving. In case it does not handle your design, switch back to Generation 1.

  • Multi-technology designs cannot be analyzed with Momentum.
    Workaround: Use the FEM simulator
  • Project load fails with the error 'OccDesign::getNet: key not found' when a layout shape has a multi-bit net name (e.g. 'd<7:0>' or 'a,c,net1').
    There is no workaround.
  • With McAfee Endpoint Security (ENS) enabled, the Momentum surface current visualization hangs.
    Workaround: Disable the "Enable Adaptive Threat Protection" flag in McAfee ENS.

• RFPro and 3D Viewer

  • If the Geometry view is empty when opening the design, this may point to an issue with the graphics card driver.
    Recommended workaround: Upgrade to the latest vendor-specific drivers and OpenGL libraries for the graphics card.
    Alternative workaround 1: On Linux, launch the tool and force it to use the X11 driver. On Windows, set the driver to 'msw'. This preference is saved for the current user and per personality. You can do that by executing the following commands, e.g. in a shell on Linux:

    cd $HPEESOF_DIR/fem/2022.20/linux_x86_64/bin
    ./startempro --personality=rfpro --driver=x11
    ./startempro --personality=3dview --driver=x11

    Ignore any license-related error messages that may show up on executing these commands. The driver setting is saved per personality for future sessions.

    cd $HPEESOF_DIR/fem/2022.20/linux_x86_64/bin
    ./startempro --personality=rfpro --clear-preferences
    ./startempro --personality=3dview --clear-preferences

    For further troubleshooting with 3D libraries, refer to the following topics:

    • Troubleshooting Blank Geometry Window

    • Improving Graphics Performance in Remote Linux Environment

    Alternative workaround 2: Set the following environment variable EMPRO_SET_SOFTWARE_DRIVER_AS_DEFAULT=1. This variable controls the default driver when no preference was set. On Linux, X11 is used. On Windows, MSW is used.
    You can clear all preferences as follows:
    

• EM Setup
  • On a Virtual Windows 10 system with Microsoft Hyper-V Video display driver, the 3D EM Preview with EM Setup Preprocessing may bring up a dialog with a Hoops error, and, after suppressing the dialog, it opens up blank.
    There is no workaround.
  • EM Setup faces issues submitting jobs to a cluster when the "sitecluster behavior" is not implemented in sitecluster implementation.

    Workaround: Add a behavior function to sitecluster that returns {} as output on stdout.

  • FEM based parallel jobs on sitecluster with behavior configuration (qbehave) may show incomplete simulation logs.
    Workaround: You can view the complete log available in the following location: <wrk_space>/simulation/<lib>/<cell>/layout/emSetup_FEM/proj.ep/Simulation/<simulation_num>/emds_dsn/design/emprfem*.log
• Distributed simulations

  • The example implementation of the sitecluster command for LSF clusters may lead to failing simulations if the path or number of threads is too large.
    Workaround: See the workaround details in the sitecluster documentation.

Import/Export

• • Exporting with MentorDA link does not work with the latest Mentor Graphics software Version VX2.6. 

  Back to Feature Updates

Power Electronics

• PowerMOS_SiC power devices operate under a very wide range of voltage and current slew rates and it is a challenge to create a model that converges under all conditions – especially conditions that depend upon what components are connected externally to the power device in the circuit schematic. Please contact technical support if you encounter such an issue when attempting to use this model.

• If you run PEPro on a new machine with Suse 11 or Redhat 6 installed, you may encounter the critical error "EMPro exited unexpectedly during execution." This is related to the graphics driver software.
  Workaround: Upgrade to the latest vendor specific drivers and opengl libraries for the graphics card.
  Or
  Run the following commands:

  cd $HPEESOF_DIR/fem/2020.20/linux_x86_64/bin
  ./startempro --personality=sipi--driver=x11

  You can ignore any license related error messages. The driver setting is saved per personality for future sessions.

  Back to Feature Updates

Installation

• While installing a new version of ADS, if you see “Previous version detected” error even after you have already run the uninstaller for that version of ADS, you may need to manually uninstall ADS before installation of the new ADS. To manually uninstall ADS, perform the following steps.
  
  1. Exit the current ADS installation session if it is running
  2. Remove or rename the file .com.zerog.registry.xml  under the folder  C:\Program Files\Zero G Registry . Both the folder and the file are by default hidden, so you may need to change the folder viewing setting to show hidden files and folders, do so via the Advanced settings of the View tab in the Windows Folder Options dialog box.
  3. Remove the ADS installation directory through the Windows Explorer.
• After performing the above steps, you can re-start the ADS installer.

  Back to Feature Updates

Licensing

  Back to Feature Updates

Third Party Applications

• Spyder application menu bar becomes inactive when the window is maximized using View > Full Screen or by pressing F11 (shortcut key to maximize the screen).
  Workaround: Press F11 again to make it the default screen. The menu bar is now active and works fine.

  Back to Feature Updates

Verification

• Cadence applications (Assura) is not supported in RHEL 8 Linux Distribution. 

  Back to Feature Updates

Virtual Test Bench

• From VTB 2022, SystemVue VTB's QT help file is integrated into SystemVue VTB installer. However, help does not open, when you press F1 for a VTB component.
  Workaround: Perform the following steps:

1. 1. Open a command window.

   2. Set the path to ADS help directory. Execute the following command:

      On Windows

      set path="<ADS_Install_DIR>\bin\Help";%PATH%

      On Linux

      export PATH=<ADS_Install_DIR>/bin/Help:$PATH

      On RHEL 7 (due to library related issue)

      export HPEESOF_DIR=<ADS_Install_DIR>
      export LD_LIBRARY_PATH=$HPEESOF_DIR/lib/linux_x86_64:$HPEESOF_DIR/lib/linux_x86:$LD_LIBRARY_PATH
      export PATH=$HPEESOF_DIR/bin:$PATH
      export PATH=$HPEESOF_DIR/bin/HELP:$PATH

      Where,

      <ADS_Install_DIR> is the ADS installation directory.

      On Windows: The default ADS location is "C:\Program Files\Keysight\ADS<version>"

      On Linux: The default ADS location is "/usr/local/ADS<version>".

      For example, <version> is 2022

   3. Invoke VTB help. Execute the following command:

      On Windows

      assistant -collectionfile "<VTB_Install_DIR>\Help\vtb.qhc"

      On Linux

      export SYSTEMVUE_INSTALLATION_DIRS=xxx/SystemVueVTB/2022

      assistant -collectionfile $SYSTEMVUE_INSTALLATION_DIRS/Help/vtb.qhc

      Where,

      <VTB_Install_DIR> is the SystemVueVTB installation directory on Windows.
      xxx is the directory where unzip or untar of VTB package is done on Linux
      On Windows: The default VTB location is "C:\Program Files\Keysight\SystemVueVTB2022"

      You can also refer to the online version of the SystemVueVTB documentation.
      

• When using VTB on Virtual Machine (VM), if SystemVue crashes then ensure to restart your system.

• To use VTB, ensure ADS is installed in a path that has only ASCII characters.
  
  

• Backward compatibility
  In ADS, the customized VTB can have a backward compatibility issue.
  Workaround: To fix this issue, use one of the following methods:

1. 1. Open and Save the custom VTB in SystemVue2022Update0.1. Now, you can use the custom VTB in ADS.
   2. A built-in workspace conversion tool is provided in the installer. You can convert the custom workspace (.wsv) to the newer SystemVue version. Use the following steps to convert the workspaces:
      • Open Command Prompt in the Administrator mode.
      • Browse the location of the old workspace. For example, C:\ADS_VTB.

      • Run the following command parameter.

        C:\ADS_VTB><SystemVueVTB_Installation_Dir>\bin\WorkspaceConversionToolManaged.exe" VTB_Examples.wsv VTB_examples_new.wsv

        Where,

        1. <SystemVueVTB_Installation_Dir> is the location where SystemVue VTB package is installed. For example, C:\Program Files\Keysight\SystemVueVTB2022.

         2. VTB_Examples.wsv is old SystemVue file and VTB_examples_new.wsv is converted file.

   3. The following successful message is displayed.
      Created: VTB_example_new.wsv

   4. You can now use the VTB_examples_new.wsv workspace in ADS.

• When multiple VTB versions are installed, the VTB package in the Library Configuration Editor remain fixed to a particular VTB version. However, symbol view uses the correct VTB version.

  Back to Feature Updates

Examples - Known Issues

• Examples under <ADS Install Directory>\examples \Instrument_links folder are not getting opened on Linux where as they are opening fine on Windows.
  Workaround: Rename the ‘Instrument_links’ folder to ‘Instrument_Links’, if you have write permission to the <ADS Install Location>\examples folder. In case you do not have the write permission then proceed with manual unarchive process (File > Unarchive from the ADS Main window) pointing to the Example workspace. 

• Example search might not work and prompt you the "Database is locked" error when ADS installation is on NAS.
  Workaround: Restart the nfslock service on client. In case the problem still persists, reboot the client to unlock the database.

• Unable to compile Pin Diode Model using Visual Studio 2012 on Windows 7 64-bit platform.
  Workaround: Delete the contents of the directory examples\RF_Microwave\UserCompiledModel_wrk\ UserCompiledModel\lib.win32_64 before using UCMs.
• An error occurs while running a custom VTB.
  Workaround: Download and run a custom VTB from the following location: <ADS Install Location>\SystemVue\2016.08\win32_64\VTB. 
  

   Back to Feature

Documentation

• On Windows, Printing directly from installed help generates non-readable output.
  Workaround: Use the PDF version of the document for printing purposes.

• From 2017 onwards, in the installed help when you open a page using the "Open a link in new tab" option the help does not open a page in a different tab by default. You need to set the preferences to open any link in a new tab.
  To set the preferences:

  1. From the 201x version of the installed help, Click Edit > Preferences.
     The Preferences Dialog box is displayed.

  2. Select the Options tab.

  3. Under Appearance, select the Show tabs for each individual page option.

  This is a one-time setting for a particular release of a product.
• Unable to open online help, any external link, or Embedded Survey link in Linux on Mozilla Firefox browser.
  Workaround: Use Mozilla Firefox version 39 or above or keep the Mozilla Firefox window open and then try to open online help.
• While using the installed help, you may encounter issues like help not showing any content, it throws an error, it displays unexpected hierarchy in the Content tab, or it does not display any search results.
  Workaround: Close the help, delete the contents of the following directory, and open the help again.
  
  • On Windows:  C:\Users\<Windows_Login_ID>\AppData\Local\Keysight\Help
  • On Linux: $HOME/.local/share/Keysight/Help
• The installed help search does not support [] or {} or any other text using these combinations.
• On Linux, Konqueror web-browser does not display the online help properly. It may not display help pages at all or may display them broken and with errors.
  Workaround: Use Mozilla Firefox to view the online help.

  Back to Feature Updates