Keysight Technologies N5991 User Manual
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Keysight Technologies N5991 User Manual

Hdmi frame generator
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Keysight N5991 HDMI Frame
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  • Page 1 Keysight N5991 HDMI Frame Generator User Guide...
  • Page 2 THE IMPLIED WARRANTIES OF The license set forth in the EULA represents MERCHANTABILITY AND FITNESS FOR A the exclusive authority by which the U.S. PARTICULAR PURPOSE. KEYSIGHT SHALL government may use, modify, distribute, or Keysight N5991 HDMI Frame Generator User Guide...

  • Page 3: Table Of Contents

    M8195A Two Module setup 3 Using the Software Connecting to the Instruments Main window TMDS Mode FLR Mode Video Format Link Training Pattern selection Save / Load Settings dialog Main menu 4 Troubleshooting Keysight N5991 HDMI Frame Generator User Guide...
  • Page 4 Contents Keysight N5991 HDMI Frame Generator User Guide...
  • Page 5 Keysight N5991 HDMI Frame Generator User Guide Introduction Overview of the Guide Document History HDMI Frame Generator - Overview...

  • Page 6: Overview Of The Guide

    Introduction Overview of the Guide This guide provides a detailed description of the Keysight N5991 HDMI Frame Generator. Keysight N5991 HDMI Frame Generator User Guide...

  • Page 7: Document History

    Introduction Document History First Edition (March 2020) The first edition of this user guide describes functionality of software version 1.0. Keysight N5991 HDMI Frame Generator User Guide...

  • Page 8: Hdmi Frame Generator - Overview

    It comprises jitter insertion for jitter tolerance tests to set the skew and other key parameters. The software runs on a standard Windows PC and controls the hardware test resources through appropriate interfaces, such as a LAN (Local Area Network). Keysight N5991 HDMI Frame Generator User Guide...
  • Page 9 Keysight N5991 HDMI Frame Generator User Guide Test Instrument Setup M8195A Single Module setup / 10 M8195A Two Module setup / 11 Prior to using the HDMI Frame Generator software for connecting instruments, Keysight recommends setting up the test instruments and establishing the required connections.

  • Page 10: M8195A Single Module Setup

    8Gbit/s and does not support FRL testing. Figure 1 Connection diagram for an M8195A single module setup For a full coverage of HDMI PHY testing, the M8195A two module setup (shown further) is required. Keysight N5991 HDMI Frame Generator User Guide...

  • Page 11: M8195A Two Module Setup

    Test Instrument Setup M8195A Two Module setup This setup consists of two M8195A 2-channel modules and a M8197A multi-channel synchronization module. Figure 2 Connection diagram for an M8195A two module setup Keysight N5991 HDMI Frame Generator User Guide...
  • Page 12 Test Instrument Setup Keysight N5991 HDMI Frame Generator User Guide...
  • Page 13 Keysight N5991 HDMI Frame Generator User Guide Using the Software Connecting to the Instruments / 14 Main window / 18...

  • Page 14: Connecting To The Instruments

    Figure 3 HDMI Frame Generator main window (Instruments in disconnected state) Keysight N5991 HDMI Frame Generator User Guide...
  • Page 15 Specify the IP address of the AWG Host PC. This is the PC, which is connected to the hardware and runs the AWG firmwares. The default entry “localhost” is valid, if the HDMI Frame Generator software is residing on the controller PC of the AWG system. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 16 AWG system are applied automatically. Note that you must first start the AWG setup specific firmware(s) on the Host PC. Click Cancel, if you wish to terminate the “ConnectDialog” window without connecting. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 17 HDMI Frame Generator software. Keysight recommends proper adherence to every instruction regarding connections. Keysight N5991 HDMI Frame Generator User Guide...

  • Page 18: Main Window

    HDMI Frame Generator main window (Instruments in connected state) After the parameters have been set, perform the following steps: Click “Connect”. The “Connect” button initiates a dialog box that helps in establishing a connection with the instruments, such as a signal Keysight N5991 HDMI Frame Generator User Guide...

  • Page 19: Tmds Mode

    Video Content Video Format The “Video Format” section in the upper part of the main window allows you to select several parameters. For HDMI TMDS testing, the parameters available are described in Table Keysight N5991 HDMI Frame Generator User Guide...
  • Page 20 To the right side of the main menu, select one or more “Info Packets”: • AVI Info Frame • General Control • SPD Info Framework • Vendor-Specific • Audio Info Frame • Gamut Metadata • Other Packet Keysight N5991 HDMI Frame Generator User Guide...
  • Page 21 In this window, every bit of each packet can be modified. To edit a packet, select it from the drop-down box in the top left-hand corner of the window. The check box “Send Packet” determines whether the packet is actually transmitted in the video stream or not. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 22 This section offers the following basic options: Default A gray bar is created according to the protocols defined in the Compliance Test Specification (CTS). See Figure Figure 7 Preview for default Video Content Keysight N5991 HDMI Frame Generator User Guide...
  • Page 23 It is the same dialog as will be opened if the ‘Color Gradient Setup’ option is selected from the “Edit” menu of the main window. For more details, see Color Gradient Setup. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 24 See Figure Figure 9 Preview for Range Marker Video Content Chess Board A simple chess board pattern with 8x6 fields is shown in Figure Figure 10 Preview for Chess Board Video Content Keysight N5991 HDMI Frame Generator User Guide...
  • Page 25 This is a special black and white pattern defined in HDMI 2.0 CTS. This test image verifies that a DUT shows the YCbCr 4:2:0 content correctly. See Figure Figure 12 Preview for Y420 B&W Bar Video Content Keysight N5991 HDMI Frame Generator User Guide...
  • Page 26 “Add...”. If multiple images are added to the image list, you can toggle between them. Note that the image is not stretched. Hence, if the image size is smaller than the screen resolution, the image line and the Keysight N5991 HDMI Frame Generator User Guide...
  • Page 27 Using the Software image row are repeated until the screen is covered. If the image size is bigger than the screen resolution, the image is truncated. Click “Remove” to delete images from the image list. Keysight N5991 HDMI Frame Generator User Guide...

  • Page 28: Flr Mode

    HDMI FRL requires character error detection. Figure 15 HDMI Frame Generator main window for FRL mode The properties of the FRL mode are divided into three sections: • Video Format • Link Training Pattern selections Keysight N5991 HDMI Frame Generator User Guide...

  • Page 29: Video Format

    LTP5-8 pattern—applies the FRL link training pattern to each lane. It is composed by 4096 18-bit characters starting with four SR characters followed by 4092 characters by encoding scrambling LFSR output. • End—finishes the FRL testing. Keysight N5991 HDMI Frame Generator User Guide...

  • Page 30: Save / Load Settings Dialog

    • click “Load” to load a setting from the hard disk. The setting list contains all the settings that have been added using the “Add” button described above. To manage this setting list: Keysight N5991 HDMI Frame Generator User Guide...

  • Page 31: Main Menu

    The “Frame Timing Setup” window allows access for advanced users to all relevant timing parameters. The parameters are listed in a table and can be set individually, as shown in Figure 17. Note that this setup applies only to HDMI TMDS testing. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 32 DataRate = (Hblank + Hresolution) × (Vblank + Vresolution) × Bits per pixel × Frame Rate Click “Ok” to apply the selected parameters or simply close this window to exit without saving changes. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 33 • Load from File—This will read frame data from a file. • PRBS-Function—The pseudo-random binary sequence (PRBS) function generates a pseudo-random color scheme. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 34 By doing so, advanced users can combine multiple parameter changes along with reducing calculation and loading time. • Click “Cancel” to close the “Color Gradient Setup” window and discard any changes. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 35 Using the Software Instrument Parameter Setup The “Instrument Parameter Setup” window allows the relevant instrument parameters to be controlled. Figure 20 Instrument Parameter Setup dialog for TMDS Keysight N5991 HDMI Frame Generator User Guide...
  • Page 36 Clock—The Clock group allows you to modify the HDMI clock setup, either by means of the Data Rate, the corresponding Pixel Clock, Frame Rate or Deviation. Changing any of these parameters auto-calculates the value for others. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 37 Crosstalk—The Crosstalk group helps enable crosstalk and select the victim lane. After selecting the required instrument parameters: • Click “Apply All Settings” to set all parameters simultaneously. • Click “Close” to exit the window without saving changes. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 38 Figure 22 Color Coding Conversion tool This tool enables the RGB Unlimited color mode with different color depths to be converted to several output color modes, such as RGB restricted and YCbCr ITU-R 601. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 39 +5 V at the HDMI connector as required according to the HDMI specification • to read the Character Error Detection from the SCDC register • to read the VSDB (Vendor-Specific Data Block) to check the SCDC availability Keysight N5991 HDMI Frame Generator User Guide...
  • Page 40 • to read the link training pattern requests FLR Link Training Clicking this option applies all FRL settings, generates the pattern and initiates the link training (automatically, if the Auto FLT is selected). Keysight N5991 HDMI Frame Generator User Guide...
  • Page 41 Keysight N5991 HDMI Frame Generator User Guide Troubleshooting...
  • Page 42 When using the HDMI Frame Generator software, use the “Output” tab of the Soft Front Panel to verify access to the hardware, for instance, by observing the amplitude levels or the output switches. Keysight N5991 HDMI Frame Generator User Guide...
  • Page 43 Troubleshooting and Support Figure 25 Keysight M8195A Soft Front Panel window Keysight N5991 HDMI Frame Generator User Guide...
  • Page 44 Troubleshooting and Support Keysight N5991 HDMI Frame Generator User Guide...
  • Page 45 Keysight N5991 HDMI Frame Generator User Guide...
  • Page 46 This information is subject to change without notice. © Keysight Technologies 2020 Edition 1.0, March 2020 www.keysight.com...

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