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TekExpress® Automotive PAM3 Analysis Application

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TekExpress® Automotive PAM3 Analysis Application

Printable Application Help

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077-1606-01

Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specifications and price change privileges reserved.

TekExpress is a registered trademark of Tektronix, Inc.

TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc. 14150 SW Karl Braun Drive P.O. Box 500 Beaverton, OR 97077 USA

For product information, sales, service, and technical support:

■

In North America, call 1-800-833-9200.

■

Worldwide, visit www.tek.com to find contacts in your area.

Welcome .............................................................................................................................................. v

Getting help and support

Related documentation ................................................................................................................... 1

Conventions .................................................................................................................................... 2

Technical support ........................................................................................................................... 2

Getting started

Supported oscilloscopes ................................................................................................................. 5

Recommended probes ..................................................................................................................... 5

Downloading and installing the software ....................................................................................... 6

Activate the license ......................................................................................................................... 6

View software version .................................................................................................................... 7

Application directories ................................................................................................................... 7

File name extensions ...................................................................................................................... 8

Operating basics

Launch the application .................................................................................................................... 9

Exit the application ....................................................................................................................... 10

Application controls ..................................................................................................................... 11

Global application controls ........................................................................................................... 13

Options menu overview ........................................................................................................... 13

TekExpress instrument control settings .................................................................................. 14

View connected instruments ................................................................................................... 15

Configure email settings .......................................................................................................... 16

Application panels overview ........................................................................................................ 18

Setup panel ................................................................................................................................... 19

Setup panel overview .............................................................................................................. 20

Set DUT parameters ................................................................................................................ 20

Select tests ............................................................................................................................... 32

Set acquisition tab parameters ................................................................................................. 33

Set configuration tab parameters ............................................................................................. 34

Set preferences tab parameters ................................................................................................ 38

Status panel overview ................................................................................................................... 39

TekExpress® Automotive PAM3 Analysis Application i

Table of Contents

Results panel ................................................................................................................................. 41

Results panel overview ............................................................................................................ 41

Preferences menu .................................................................................................................... 42

View test-related files .............................................................................................................. 42

Reports panel ................................................................................................................................ 43

Reports panel overview ........................................................................................................... 43

Select report options ................................................................................................................ 44

View a report ........................................................................................................................... 46

Report content ......................................................................................................................... 46

Running tests

Equipment connection diagram .................................................................................................... 49

Compensate the signal path .......................................................................................................... 61

Running tests ................................................................................................................................ 61

View test results ............................................................................................................................ 62

Saving and recalling test setup

Test setup files overview .............................................................................................................. 63

Save a test setup ............................................................................................................................ 63

Open load a saved test setup ......................................................................................................... 64

Create a test setup from default settings ....................................................................................... 64

Create a test setup using an existing one ...................................................................................... 64

SCPI commands

About SCPI command .................................................................................................................. 65

Socket configuration for SCPI commands ................................................................................... 65

TEKEXP:*IDN? ........................................................................................................................... 73

TEKEXP:*OPC? .......................................................................................................................... 73

TEKEXP:ACQUIRE_MODE ...................................................................................................... 74

TEKEXP:ACQUIRE_MODE? .................................................................................................... 74

TEKEXP:EXPORT ...................................................................................................................... 75

TEKEXP:INFO? ........................................................................................................................... 75

TEKEXP:INSTRUMENT ............................................................................................................ 76

TEKEXP:INSTRUMENT? .......................................................................................................... 76

TEKEXP:LASTERROR? ............................................................................................................. 77

TEKEXP:LIST? ............................................................................................................................ 77

TEKEXP:POPUP ......................................................................................................................... 78

TEKEXP:POPUP? ........................................................................................................................ 78

ii TekExpress® Automotive PAM3 Analysis Application

Table of Contents

TEKEXP:REPORT ...................................................................................................................... 79

TEKEXP:REPORT? ..................................................................................................................... 79

TEKEXP:RESULT? ..................................................................................................................... 80

TEKEXP:SELECT ....................................................................................................................... 81

TEKEXP:SELECT? ..................................................................................................................... 81

TEKEXP:SETUP .......................................................................................................................... 82

TEKEXP:STATE ......................................................................................................................... 82

TEKEXP:STATE? ........................................................................................................................ 83

TEKEXP:VALUE ........................................................................................................................ 83

TEKEXP:VALUE? ...................................................................................................................... 84

Command parameters list ............................................................................................................. 85

Examples ...................................................................................................................................... 93

TekExpress® Automotive PAM3 Analysis Application iii

Table of Contents

iv TekExpress® Automotive PAM3 Analysis Application

Welcome

Welcome to TekExpress® Automotive PAM3 Analysis software application. Automotive Ethernet operates as a full-duplex communication link over a twisted-pair cable. The Full-Duplex communication, along with PAM3 signaling, adds complexity in validating the Electronic Control Units (ECU) in real-world conditions. The TekExpress Automotive PAM3 Analysis application includes unique Signal Separation capability and Electrical analysis.

The application enables you to separate traffic from two ECUs in full-duplex mode without having to cut cables or make hardware changes to the Ethernet cable using unique Signal Separation feature. The application provides more visibility into your Automotive PAM3 design with PAM3-based measurements including Eye Diagram, Bathtub Plot, and Jitter tests.

Key features

■

Signal separation algorithm enables the analysis of a full duplex signal by separating them into their respective half duplex signals. The separation can be performed without affecting the ECU system or dissecting the Ethernet cable to install a directional coupler.

■

Eye Diagram in noisy condition provides better insight compared to SQI (Signal Quality Index) value.

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The separated waveforms obtained from the signal separation algorithm enables you to decode both Master and Slave ECU signals simultaneously.

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Measurements like eye height and eye width can be used to measure the eyeopening of the signals. Additionally, an eye mask can be added to check the

TekExpress® Automotive PAM3 Analysis Application v

Welcome

shape of the eye-diagrams. The jitter measurements include deterministic, random and total jitter. The total jitter measurement can be calculated at a particular Bit Error Rate (BER) to demonstrate the signal integrity of the system. All the measurements can be performed on both master and slave ECUs.

vi TekExpress® Automotive PAM3 Analysis Application

Getting help and support

Conventions

Help uses the following conventions:

■

The term "Application," and "Software" refers to the TekExpress Automotive PAM3 Analysis application.

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The term “DUT” is an abbreviation for Device Under Test.

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The term “select” is a generic term that applies to the two methods of choosing a screen item (button control, list item): using a mouse or using the touch screen.

■

A Note identifies important information.

Table 2: Icon descriptions

Icon Meaning

This icon identifies important information.

Technical support

General information

This icon identifies conditions or practices that could result in loss of data.

This icon identifies additional information that will help you use the application more efficiently.

Tektronix values your feedback on our products. To help us serve you better, please send us your suggestions, ideas, or comments on your application or oscilloscope. Contact Tektronix through mail, telephone, or the Web site, http://

www.tek.com.

When you contact Tektronix Technical Support, please include the following information (be as specific as possible):

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All instrument model numbers

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Hardware options, if any

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Modules used

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Your name, company, mailing address, phone number, FAX number

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Please indicate if you would like to be contacted by Tektronix about your suggestion or comments.

2 TekExpress® Automotive PAM3 Analysis Application

Getting help and support

■

Application specific

information

Software version number

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Description of the problem such that technical support can duplicate the problem

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If possible, save the setup files for all the instruments used and the application

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If possible, save the TekExpress setup files, log.xml, *.TekX (session files and folders), and status messages text file

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If possible, save the waveform on which you are performing the measurement as a .wfm file

TekExpress® Automotive PAM3 Analysis Application 3

Getting help and support

4 TekExpress® Automotive PAM3 Analysis Application

Getting started

Supported oscilloscopes

■

Recommended probes

5 Series Mixed Signal Oscilloscope (MSO54, MSO56, MSO58)

6 Series Mixed Signal Oscilloscope (MSO64) with bandwidth 4 GHz and above

Firmware Version: 1.24.9.x or above

100BASE-T1

1000BASE-T1

Voltage probe

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TDP1500

■

TDP3500

Current probe

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TCP0030A

■

P6022

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CT6

Voltage probe

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TDP3500

Current probe

■

CT6

TekExpress® Automotive PAM3 Analysis Application 5

Getting started

Downloading and installing the software

Complete the following steps to download and install the latest PAM3 application. See Supported oscilloscopes on page 5 for compatibility.

1. Go to www.tek.com.

2. Click Downloads. In the Downloads menu, select DOWNLOAD TYPE as

Software and enter PAM3 in the MODEL OR KEYWORD field and click SEARCH.

Figure 1: Download Manuals, Datasheets, Software and more

3. Select the latest version of software and follow the instructions to download. Copy the executable file to the oscilloscope.

Activate the license

4. Double-click the executable and follow the on-screen instructions. The software is installed at C:\Program Files\Tektronix\TekExpress\TekExpress Automotive PAM3 Analysis.

5. Select Application > TekExpress Automotive PAM3 Analysis from the oscilloscope Menu bar to launch the application.

Activate the license from the oscilloscope:

1. From the Help tab, select About.

2. Click Install License.

Browse to select the license file.

6 TekExpress® Automotive PAM3 Analysis Application

Getting started

View software version

Use the following instruction to view version information for the application.

Click Options > About TekExpress.

Application directories

The TekExpress Automotive PAM3 Analysis files are installed at the following location:

C:\Program Files\Tektronix\TekExpress\TekExpress Automotive PAM3 Analysis

The application directory and associated files are organized as follows:

Figure 2: Application directory

The following table lists the default directory names and their usage:

Directory names Usage

ACP Contains application libraries

Bin Contains dll files

Compliance Suites Contains compliance specific files

Examples Contains examples for SCPI commands

ICP Contains instrument and application specific interface libraries

Images Contains images of the application

Lib Contains utility files specific to the application

Report Generator Contains style sheets for report generation

Tools Contains instrument and application specific files

TekExpress® Automotive PAM3 Analysis Application 7

Getting started

File name extensions

The TekExpress Automotive PAM3 Analysis software uses the following file name extensions:

Table 3: File name extension

File name extension Description

.TekX Application session files (the extensions may not be displayed)

.py Python sequence file

.xml Test-specific configuration information (encrypted) files

Application log files

.csv Test result reports

.mht Test result reports (default)

Test reports can also be saved in HTML format

.pdf Test result reports

Application help document

.xslt Style sheet used to generate reports

8 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Launch the application

To launch the TekExpress Automotive PAM3 Analysis application, select Applications > TekExpress Automotive PAM3 Analysis from the oscilloscope Menu bar.

Figure 3: TekExpress Automotive PAM3 Analysis

After first launch of the TekExpress Automotive PAM3 Analysis application, the following changes take place on the oscilloscope.

During launch, a "My TekExpress" folder is created in the Documents folder of the current user and gets mapped to "X" drive. When the application is closed properly, the "X" drive will get unmapped.

NOTE. If a user with new login ID launches "TekExpress Automotive PAM3 Analysis.exe", the "My TekExpress" folder is created in the Documents folder of the new user.

TekExpress® Automotive PAM3 Analysis Application 9

Operating basics

When you first run the application after installation, the application checks for Resources.xml located in the X:\ folder. The Resources.xml file gets created in the X: drive. If the file is not found, then the application creates the file with equipment details. Session files are then stored inside the X:\TekExpress Automotive PAM3 Analysis folder. If this file is not found, the application runs an instrument discovery program to detect connected instruments before launching TekExpress Automotive PAM3 Analysis.

To keep the TekExpress Automotive PAM3 Analysis application window on top, select Keep On Top from the Options menu. If the application goes behind the oscilloscope application, click Application > TekExpress Automotive PAM3 Analysis to move the application to be in front.

NOTE. When Keep on Top is selected, you cannot access the combo boxes in the application panels.

See also

Exit the application

To exit the application, click on the application title bar. Follow on-screen prompts to save any unsaved session, save test setup files, or exit the application.

NOTE. Using other methods to exit the application can result in abnormal termination of the application.

10 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Application controls

This section describes the application controls.

Table 4: Application control description

Item Description

Options menu

Test panel

Menu to display global application controls.

Controls that open tabs for configuring test settings and options.

Start / Stop button

Pause / Continue button

Clear button

Use the Start button to start the test run of the measurements in the selected order. If prior acquired measurements are not cleared, then new measurements are added to the existing set. The button toggles to the Stop mode while tests are running. Use the Stop button to abort the test.

Use the Pause button to pause the acquisition. When a test is paused, this button changes as Continue.

Use the Clear button to clear all existing measurement results. Adding or deleting a measurement, or changing a configuration parameter of an existing measurement, also clears measurements. This is to prevent the accumulation of measurement statistics or sets of statistics that are not coherent. This button is available only on the Results panel.

NOTE. This button is visible only when there are results data on the panel.

TekExpress® Automotive PAM3 Analysis Application 11

Operating basics

Item Description

Application window move icon

Minimize icon

Close icon

Mini view / Normal view

Place the cursor over the top of the application window to move the application window to the desired location

Minimizes the application.

Close the application.

Toggles the application between mini view and normal view. Mini view displays the run messages with the time stamp, progress bar, Start / Stop button, and Pause / Continue button. The application moves to mini view when you click the Start button.

12 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Global application controls

The menus and controls that appear outside the individual tabs are called “Global Controls”. These are used to specify the devices to be tested.

Options menu overview

To access the Options menu, click in the upper-right corner of the application. It has the following selections:

Options menu

Figure 4: Options

Menu Function

Default Test Setup Opens an untitled test setup with defaults selected

Open Test Setup Opens a saved test setup

Save Test Setup Saves the current test setup

Save Test Setup As Saves the current test setup with a different file name or file type

Open Recent Displays the recently opened test setups to open

Instrument Control Settings

Keep On Top Keeps the TekExpress Automotive PAM3 Analysis application on top of

Detects, lists, and refreshes the connected instruments found on specified connections (LAN, GPIB, USB, and so on)

all the application

NOTE. When Keep on Top is selected, you cannot access the combo boxes in the application panels.

Email Settings Configures email options for test run and results notifications

MOI Displays the TekExpress Automotive PAM3 Analysis MOI (Method Of

Implementation) document

TekExpress® Automotive PAM3 Analysis Application 13

Operating basics

Menu Function

Help Displays the TekExpress Automotive PAM3 Analysis help

About TekExpress

■

Displays application details such as software name, version number, and copyright

■

Provides a link to the end-user license agreement

■

Provides a link to the Tektronix Web site

Use the TekExpress Instrument Control Settings dialog box to search the instruments (resources) connected to the application. You can use the Search Criteria controls to search the connected instruments depending on the connection type. The details of the connected instrument is displayed in the Retrieved Instruments window.

To access, click Options > Instrument Control Settings.

Figure 5: TekExpress Instrument Control Settings

The connected instruments displayed here can be selected for use under Global Settings in the test configuration section.

NOTE. Select GPIB (Default) and LAN when using TekExpress Automotive PAM3 Analysis application on 5/6 Series MSO instruments.

Configure email settings

The details of the instruments are displayed in the Retrieved Instruments table. The time and date of instrument refresh is displayed in the Last Updated field.

See also. Equipment connection diagram on page 49

Use the Email Settings utility to get notified by email when a measurement completes, or produces any error condition. Follow the steps to configure email settings:

16 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Email Settings

1. Select Options > Email Settings to open the Email Settings dialog box.

2. (Required) For Recipient email Address(es), enter one or more recipient

email addresses. To include multiple addresses, separate the addresses with commas.

3. (Required) For Sender’s Address, enter the email address used by the instrument. This address consists of the instrument name, followed by an underscore, followed by the instrument serial number, then the @ symbol, and the email server ID. For example: user@yourcompany.com.

4. (Required) In the Server Configuration section, type the SMTP Server address of the Mail server configured at the client location, and the SMTP Port number, in the corresponding fields.

If this server requires password authentication, enter a valid login name, password, and host name in the corresponding fields.

NOTE. If any of the above required fields are left blank, the settings will not be saved and email notifications will not be sent.

5. In the Email Attachments section, select from the following options:

■

Reports: Select to receive the test report with the notification email.

■

Status Log: Select to receive the test status log with the notification email. If you select this option, then also select whether you want to receive the full log or just the last 20 lines.

TekExpress® Automotive PAM3 Analysis Application 17

Operating basics

6. In the Email Configuration section:

■

7. Select the Email Test Results When complete or on error check box. Use this check box to quickly enable or disable email notifications.

8. To test your email settings, click Test Email.

9. To apply your settings, click Apply.

10. Click Close when finished.

Application panels overview

Enter a maximum file size for the email message. Messages with attachments larger than this limit will not be sent. The default is 5 MB.

Enter the number in the Number of Attempts to Send field, to limit the number of attempts that the system makes to send a notification. The default is 1. You can also specify a timeout period.

The TekExpress Automotive PAM3 Analysis solution uses panels to group Test Setup Configuration, Results, and Reports settings. Click any button to open the associated panel. A panel may have one or more tabs that list the selections available in that panel. Controls in a tab can change depending on settings made in the same tab or another tab.

Figure 7: Application panels

18 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Table 5: Application panels overview

Panel Name Purpose

Setup panel The Setup panel shows the test setup controls. Click the Setup button to

open this panel. Use this panel to:

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Set DUT tab parameters

■

Select tests

■

Set acquisition tab parameters

■

Set configuration tab parameters

■

Set preferences tab parameters

Status panel View the progress and analysis status of the selected tests, and view test

logs.

Results panel View the summary of test results and select result viewing preferences.

Reports panel Browse for reports, save reports as specific file types, specify report

naming conventions, select report content to include (summary information, detailed information, user comments, setup configuration, application configuration, test point, signal mode, and eye sections etc.), and select report viewing options.

Setup panel

See also

Application controls

TekExpress® Automotive PAM3 Analysis Application 19

Operating basics

Setup panel overview

The Setup panel contains sequentially ordered tabs that help guide you through the test setup and the execution process.

Set DUT parameters

Figure 8: Setup panel

Use the DUT tab to select parameters for the device under test. These settings are global and apply to all tests of the current session.

20 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Figure 9: DUT tab

Click Setup > DUT to access the DUT parameters:

Table 6: DUT tab - DUT tab settings

Setting Description

DUT ID Adds an optional text label for the DUT to reports. The default value is DUT001. The

maximum number of characters is 32. You cannot use the following characters in an ID name: (.,..,...,\,/:?”<>|*)

Opens the Comments dialog box to enter text to add to the report. Maximum size is

Comments icon (to the right of the

DUT ID field)

Acquire live waveforms Acquires active signals from the DUT for measurement and analysis.

Use pre-recorded waveform files Runs tests on a saved waveform. Open (load) a saved test setup.

Signal Debug Mode (Enables Ref, Math) Selects to enable the Ref and Math for Master and Slave source selection and skip the

Suite Selects the preferred suite from the drop-down option.

Device Profile

256 characters. To enable or disable comments appearing on the test report, see Select

report options.

acquisition. It will only analyze the waveforms.

■

100BASE-T1

■

1000BASE-T1

TekExpress® Automotive PAM3 Analysis Application 21

Operating basics

Setting Description

Communication Mode Selects the preferred communication mode.

■

Full Duplex

■

Half Duplex

Test Point (ECU) Selects the preferred test point

■

Master

■

Slave

■

Both

Probes Configuration Selects the preferred probe configuration.

■

One Voltage and One Current

■

One Voltage and Two Current

Master Source Selection Selects the signal source for Voltage and Current signals from the drop-down option.

Slave Source Selection Selects the signal source for Voltage and Current signals from the drop-down option.

Schematic Displays the equipment connection setup based on the communication mode, test point,

and the probes configuration selected.

Signal Separation

Run Run button separates the waveform from voltage and current signals.

Validate Allows you to validate the signal separation before running all the tests.

Displays icon, which means that signal separation is In-Progress. It also allows you to validate the signal separation and provide clock recovered waveform to plot eye diagram.

Settings

Acquisition Displays the Acquisition setup pop-up window.

Allows you to set the horizontal and signal separation settings.

Signal Corrections Displays the Signal Correction setup pop-up window.

Allows you to set the skew and attenuation settings, and also allows you to apply the correction files.

Clock Recovery Displays the Clock Recovery setup pop-up window.

Allows you to set the Baud Mode and PLL (Phase Locked Loop) settings.

De-Embed Filter Displays the De-Embed filter setup pop-up window.

Allows you to create and apply the CTLE Filter files and Inverse PR (Partial Response) Shaping filter files.

NOTE. Inverse PR Shaping filter is applicable only for 1000BASE-T1.

22 TekExpress® Automotive PAM3 Analysis Application

Operating basics

The following parameters are applicable for acquisition setup:

Figure 10: DUT tab - Acquisition Setup

Table 7: DUT tab - Acquisition Setup

Setting Description

Horizontal Settings

Sample Rate Selects the sample rate from the drop-down option.

100BASE-T1

■

0.625 GS/s

■

1.5625 GS/s

■

3.125 GS/s

■

6.25 GS/s

■

12.5 GS/s

■

25 GS/s

■

50 GS/s

1000BASE-T1

■

1.5625 GS/s

■

3.125 GS/s

■

6.25 GS/s

■

12.5 GS/s

TekExpress® Automotive PAM3 Analysis Application 23

Operating basics

Setting Description

■

25 GS/s

■

50 GS/s

Record Length Enter the record length. Range is from 0.1 M to 20 M.

Signal Separation Setup

Ref Resistance Enter the reference resistance. Range is from 1 Ohm to 200 Ohms.

Current Loop Selects the current loop value from the drop-down option.

■

Search Time Enter the search time. Range is from 1 ns to 1000 ns.

24 TekExpress® Automotive PAM3 Analysis Application

Operating basics

The following parameters are applicable for signal corrections setup:

Figure 11: DUT tab - Signal corrections

Table 8: DUT tab - Signal corrections

Setting Description

Probe Settings

Voltage Probe Select the preferred voltage probe from the drop-down option.

100BASE-T1

■

TDP1500

■

TDP3500

1000BASE-T1

■

TDP3500

TekExpress® Automotive PAM3 Analysis Application 25

Operating basics

Setting Description

Current Probe Select the preferred current probe from the drop-down option.

100BASE-T1

■

TCP0030A

■

P6022

■

CT6

1000BASE-T1

■

CT6

Ratio Select the preferred ratio from the drop-down option.

■

NOTE. This is enabled only when the P6022 is selected as the current probe.

Apply Signal Correction Select to apply the signal correction to the signal.

Skew and Attenuation Settings

Apply Skew Settings Select to apply the skew settings.

Master/Slave Skew Configuration

Voltage Enter the voltage value in the text field. The unit is ns.

Current1 Enter the current1 value in the text field. The unit is ns.

Current2 Enter the curren2 value in the text field. The unit is ns.

Apply Attenuation Settings Select to apply the attenuation settings.

Master/Slave Attenuation Settings

Voltage Enter the voltage value in the text field. The unit is db.

Current1 Enter the current1 value in the text field. The unit is db.

Current2 Enter the curren2 value in the text field. The unit is db.

26 TekExpress® Automotive PAM3 Analysis Application

Operating basics

The following parameters are applicable for clock recovery setup:

Figure 12: DUT tab - Clock Recovery

TekExpress® Automotive PAM3 Analysis Application 27

Operating basics

Table 9: DUT tab - Clock Recovery

Setting Description

Baud Mode Selects the preferred baud mode

■

Auto

■

Manual

Baud Rate Enter the baud rate value in the text field. The unit is M Bauds/s.

NOTE. This is editable only when the manual mode is selected.

Deviation Enter the deviation value in the text field. The unit is %.

NOTE. This is editable only when the manual mode is selected.

PLL Settings

PLL Model Phase Locked Loop (PLL) simulates the behavior of the specified hardware. PLL clock

recovery circuit is used to derive the clock signal. There are two types of PLL.

■

Type 1

■

Type 2

NOTE. This is editable only when the manual mode is selected.

Damping Enter the damping value in the text field.

NOTE. This is editable only when the manual mode is selected.

Loop Bandwidth Enter the loop bandwidth value in the text field. The unit is MHz.

NOTE. This is editable only when the manual mode is selected.

28 TekExpress® Automotive PAM3 Analysis Application

Operating basics

The following parameters are applicable for De-Embed filter setup:

Figure 13: DUT tab - De-Embed Filter for 100BASE-T1

TekExpress® Automotive PAM3 Analysis Application 29

Operating basics

Figure 14: DUT tab - De-Embed Filter for 1000BASE-T1

30 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Table 10: DUT tab - De-Embed Filter

Setting Description

CTLE Settings

Design Continuous Time Linear Equalizer (CTLE) boosts high frequency component of signal.

CTLE is implemented using two design methods. Select the design from the drop-down option.

■

2 Poles + 1 Zero

■

3 Poles + 2 Zeros

Create CTLE Click to generate CTLE filter files as per the selected design and load the generated filter

files automatically on the respective browse buttons.

FZ1 (MHz) Enter the first zero frequency value in the text filed.

FZ2 (MHz) Enter the second zero frequency value in the text filed.

Enter the DC gain value in the text filed.

NOTE. This is enabled when design is selected with 3 poles and 2 zeros.

Fp1 (MHz) Enter the first pole frequency value in the text filed.

Fp2 (MHz) Enter the second pole frequency value in the text filed.

Fp3 (MHz) Enter the third pole frequency value in the text filed.

NOTE. This is enabled when design is selected with 3 poles and 2 zeros.

Apply Filters Select to apply filters to the signal.

Filter Selections(s)

Master/Slave Near End Filter File Browse and select the preferred Master/Slave near end filter file.

Master/Slave Far End Filter File Browse and select the preferred Master/Slave far end filter file.

Apply Inverse PR Shaping Filter Partial Response (PR) shaping is a filtering method. This is achieved by introducing a

known ISI (Inter symbol interference) and it is applied to PAM-X symbol bursts to lower the Power Spectral Density (PSD). Select to apply the inverse PR Shaping filter to the signal.

NOTE. This is applicable only when the suite selected is 1000BASE-T1.

Inverse PR Shaping

Coeff1 Enter the first coefficient of the PR Shaping filter in the text field.

NOTE. This is applicable only when the suite selected is 1000BASE-T1.

Coeff2 The Coeff2 value is automatically taken based on the given Coeff1 value.

Coeff2 = Coeff1-1

NOTE. This is applicable only when the suite selected is 1000BASE-T1.

TekExpress® Automotive PAM3 Analysis Application 31

Operating basics

Setting Description

No Of Taps Enter the number of taps for the Inverse PR Shaping filter in the text filed.

NOTE. This is applicable only when the suite selected is 1000BASE-T1.

Select tests

Use the Test Selection tab to select the tests.

Figure 15: TekExpress Automotive PAM3 measurements

Table 11: Test Selection tab settings

Setting Description

Deselect All Select All

Tests Click on a test to select or unselect. Highlight a

Test Description Shows brief description of the highlighted test in

Deselect or select all tests in the list.

test to show details in the Test Description pane.

the test tree.

See also. Set acquisition tab parameters

32 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Set acquisition tab

parameters

Use the Acquisitions tab to view the tests.

Figure 16: Acquisitions tab

Table 12: Acquisitions tab settings

Settings Description

View Probes Displays the detected probe configuration. Use

the View Probes dialog box to view the connected probes.

The TekExpress Automotive PAM3 Analysis application saves all acquisition waveforms to files by default. Waveforms are saved in a unique folder for each session (a session is started when you click the Start button). The folder path is X:\TekExpress Automotive PAM3 Analysis\Untitled Session\<dutid> \<date>_<time>. Images created for each analysis, XML files with result values, reports, and other information specific to the session are also saved in this folder.

Saving a session moves the session file contents from the Untitled Session folder to the specified folder name, and changes the session name to the specified name.

Signal Separation files are stored at X:\Automotive PAM3 Analysis \SignalSeparationWaveforms .

TekExpress® Automotive PAM3 Analysis Application 33

Operating basics

Set configuration tab

parameters

Use the Configuration tab to view and configure the Global Settings and the measurement configurations. The measurement specific configurations available in this tab depend on the selections made in the Test Selection panel.

Table 13: Configuration tab: Common parameters

Setting Description

Limits Editor Displays the upper and lower limits for the applicable

measurement using different types of comparisons. When running tests in User Defined Mode, you can edit the limit settings in the Limits Editor.

Figure 17: Configuration tab: Global Settings

34 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Table 14: Configuration tab: Global settings

Setting Description

Global Settings

Instruments Detected Displays the instruments connected to this application. Click on

the instrument name to open a list of available (detected) instruments. Select Options > Instrument Control Settings and click Refresh to update the instrument list.

NOTE. Verify that the LAN and GPIB search criteria (default setting) in the Instrument Control Settings is selected when using the TekExpress Automotive PAM3 Analysis application.

Apply Limits Select to add limits for the measurements on report.

Figure 18: Configuration tab: Measurements

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Operating basics

Table 15: Configuration tab: Measurements settings

Setting Description

Measurements Displays the measurements that are selected in the Test

Selection tab. The tests are grouped with unique acquisition type names.

NOTE.

■

When a parent test group is selected and any change is made, the change will be applied to all the tests.

■

Individual test configuration is possible by selecting the test and making the required changes.

Analyze

Apply Mask Enable the check box to apply the selected mask file.

Master/Slave Near End Mask File

Master/Slave Far End Mask File Browse and select the master or slave far end mask file.

Pattern Detection Select the pattern from the drop-down option.

Browse and select the master or slave near end mask file.

■

Auto

■

Manual

Target BER Enter the target BER value in the text field.

Levels Select the level from the drop-down option.

■

10%-90%

■

20%-80%

36 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Table 16: Configuration tab: Measurement specific configuration

Measurements Configuration Value

Eye

■

Eye Height

Eye Width

Analyze

■

Apply Mask

■

Master Near End Mask File

■

Slave Near End Mask File

■

Master Far End Mask File

■

Slave Far End Mask File

Jitter

■

Random Jitter(DD)

■

Deterministic Jitter(DD)

Pattern Detection

■

Auto

■

Manual

Pattern Detection - ManualPattern Type

■

Repeating - Pattern Length (UI) ranging from 2 to 100000

■

Arbitrary - Window Length (UI) range from 2 to 24

Jitter: Total Jitter @ BER Pattern Detection

■

Auto

■

Manual

Pattern Detection - ManualPattern Type

■

Repeating - Pattern Length (UI) ranging from 2 to 100000

■

Arbitrary - Window Length (UI) range from 2 to 24

Target BER. Range is from 2 -

Timing

■

Rise Time

Fall Time

Levels

■

20% - 80%

10% - 80%

TekExpress® Automotive PAM3 Analysis Application 37

Operating basics

Set preferences tab

parameters

Use Preferences tab to set the application action on completion of a measurement.

Figure 19: Preferences tab

Table 17: Preferences tab settings

Setting Description

Number of Runs

Acquire/Analyze each test <n> times Select to repeat the test run by setting the

number of times. The default value is 1.

Actions on Test Measurement Failure

On Test Failure, pause the test and let me investigate

On Test Failure, stop and notify me of the failure Select to stop the test run on Test Failure, and

Popup Settings

Auto close Warnings and Informations during Sequencing Auto close after <n> Seconds

Select to pause the test run on Test Failure, for further investigations. By default, it is unselected.

to get notified via email. By default, it is unselected. Click Email Settings to configure.

NOTE. Ensure that the email settings are configured correctly. If the settings are not done correctly, the test will be stopped and no other notifications will be sent.

Select to auto close warnings/informations during sequencing. Set the Auto close time. By default it is unselected. Range is from 1-60.

38 TekExpress® Automotive PAM3 Analysis Application

Status panel overview

Operating basics

Setting Description

Auto close Error Messages during Sequencing. Show in Reports Auto close after <n> Seconds

Logging options

Enable Logging Select to enable logging.

Select to auto close Error Messages during Sequencing. Set the Auto close time. By default it is unselected. Range is from 1-60.

The Status panel accesses the Test Status and Log View tabs, which provide status on test acquisition and analysis (Test Status) and a listing of test tasks performed (Log View tab). The application opens the Test Status tab when you start a test run. You can select the Test Status or the Log View tab to view these items while tests are running.

Test Status: It displays the tests along with the Acquisition type, Acquire, and Analysis status of the tests. In pre-recorded mode, Acquire status is not valid.

Log View: It displays the detailed execution status of the tests.

Figure 20: Test status view in the Status panel

TekExpress® Automotive PAM3 Analysis Application 39

Operating basics

Figure 21: Log view in the Status panel

Table 18: Status panel settings

Control Description

Message History Lists all executed test operations and timestamp

information.

Auto Scroll Enables automatic scrolling of the log view as

information is added to the log during the test execution.

Clear Log Clears all messages from the log view.

Save Saves the log file to a text file. Use the standard

Save File window to navigate to and specify the folder and file name to which to save the log text.

40 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Results panel

Results panel overview

See also

Application panel overview

When a test execution is complete, the application automatically opens the Results panel to display a summary of test results.

Figure 22: Results panel

Each test result occupies a row in the Results table. By default, results are displayed in summary format with the measurement details collapsed and with the Pass/Fail column visible. The displayed results data can be modified in the following ways:

■

To remove or restore the Pass/Fail column, select Preferences > Show Pass/ Fail.

■

To collapse all expanded tests, select Preferences > View Results Summary.

■

To expand all tests listed, select View Results Details from the Preferences menu in the upper right corner.

■

To enable or disable the wordwrap feature, select Preferences > Enable Wordwrap.

■

To view the results grouped by lane or test, select the corresponding item from the Preferences menu.

■

To expand the width of a column, place the cursor over the vertical line that separates the column from the column to the right. When the cursor changes

TekExpress® Automotive PAM3 Analysis Application 41

Operating basics

to a double-ended arrow, hold down the mouse button and drag the column to the desired width.

■

To clear all test results displayed, click Clear.

Preferences menu

View test-related files

The Preferences menu is part of the Results panel display. Use the Preferences menu to change how some items display in the Results panel.

■

To include pass/fail details info in the details table, select Show Pass/Fail.

■

To view the results summary, select View Results Summary.

■

To expand all tests listed, select View Results Details

■

To enable or disable the wordwrap feature, select Enable Wordwrap.

Reports panel

Operating basics

The first time you run a new, unsaved session, the session files are stored in the Untitled Session folder located at X:\Automotive PAM3 Analysis. When you name and save the session, the files are placed in a folder with the name that you specify. A copy of the test files stay in the Untitled Session folder until you run a new test or until you close the TekExpress Automotive PAM3 Analysis application.

Reports panel overview

Use the Reports panel to configure report generation settings parameters, view the report, generate the report, browse for reports, name and save reports, select test content to include in reports, and select report viewing options.

Figure 24: Reports panel

For information on setting up reports, see Select report options. For information on viewing reports, see View a report.

Select report options

Click the Reports panel and use the Reports panel controls to select which test result information to include in the report, and the naming conventions to use for the report. For example, always give the report a unique name or select to have the same name increment each time you run a particular test.

Select report options before running a test or when creating and saving test setups. Report settings are included in saved test setups.

In the Reports panel, select from the following report options:

Table 19: Report options

Setting Description

Report Update Mode

Generate new report Creates a new report. The report can be in either .mht or .pdf file formats.

Append with previous run session Appends the latest test results to the end of the current test results report.

Include header in appended reports Select to include header in appended reports

Replace current test results Replaces the previous test results with the latest test results. Results from newly added

tests are appended to the end of the report.

In previous run, current session Select to replace current test results in the report with the test result(s) of previous run in

the current session.

In any run, any session Select to replace current test results in the report with the test result(s) in the selected run

session’s report.

Report Creation Settings

Report name Displays the name and location at which to store PAM3 report. The default location is at

\My TekExpress\PAM3 Analysis\Untitled Session. The report file in this folder gets overwritten each time you run a test unless you specify a unique name or select to auto increment the report name. Change the report name or location.

Do one of the following:

■

In the Report Path field, type over the current folder path and name.

■

Double-click in the Report Path field and then make selections from the popup keyboard and click the Enter button.

Be sure to include the entire folder path, the file name, and the file extension. For example: C:\Documents and Settings\your user name\My Documents\My TekExpress\Automotive PAM3 Analysis\DUT001.mht.

NOTE. You cannot set the file location using the Browse button.

Open an existing report.

Click Browse, locate and select the report file and then click View at the bottom of the panel.

44 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Setting Description

Save as type Saves a report in the specified file type, selected from the drop-down list. The report are

saved in .csv, .pdf or .mht.

NOTE. If you select a file type different from the default, be sure to change the report file name extension in the Report Name field to match.

Auto increment report name if duplicate Sets the application to automatically increment the name of the report file if the application

finds a file with the same name as the one being generated. For example: DUT001, DUT002, DUT003. This option is enabled by default.

Create report automatically at the end of the run

Contents To Save

Include pass/fail info in details table Includes pass/fail info in the details table of the report.

Include detailed results Includes detailed results in the report.

Include plot images Includes the plot images in the report.

Include setup configuration Sets the application to include hardware and software information in the summary box at

Include complete application configuration Select to complete application configuration.

Include user comments Select to include any comments about the test that you or another user added in the DUT

Group Report By

Test Name Select to group the tests in the report by test name.

Test Point Select to group the tests in the report by the test point.

Signal Type Select to group the tests in the report by the signal type.

Eye Selection Select to group the tests in the report by sections of the eye-diagram.

Test Result Select to group the tests in the report by test results

View report after generating Automatically opens the report in a Web browser when the test completes. This option is

View Click to view the most current report.

Report Generates a new report based on the current analysis results.

Save As Specify a name for the report.

Creates report at the end of the run.

the top of the report. Information includes the oscilloscope model and serial number, the oscilloscope firmware version, and software versions for applications used in the measurements.

tab of the Setup panel. Comments appear in the Comments section, under the summary box at the beginning of each report.

selected by default.

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Operating basics

View a report

Report content

The application automatically generates a report when test execution is complete and displays the report in your default Web browser (unless you cleared the View Report After Generating check box in the Reports panel before running the test). If you cleared this check box, or to view a different test report, do the following:

1. Click the Reports button.

2. Click the Browse button and locate and select the report file to view.

3. In the Reports panel, click View.

NOTE. The Iteration column will be displayed only when more than one test run is selected.

For information on changing the file type, file name, and other report options, see

Select report options.

A report shows detailed results and plots, as set in the Reports panel.

46 TekExpress® Automotive PAM3 Analysis Application

Operating basics

Setup configuration information

The summary box at the beginning of the report lists setup configuration information. This information includes the oscilloscope model and serial number, optical module model and serial number, and software version numbers of all associated applications.

To exclude this information from a report, clear the Include Setup Configuration check box in the Reports panel before running the test.

User comments

If you selected to include comments in the test report, any comments you added in the DUT tab are shown at the top of the report.

TekExpress® Automotive PAM3 Analysis Application 47

Operating basics

Running tests

Equipment connection diagram

Figure 25: Test setup for 100BASE-T1 Full Duplex mode using both Master and Slave for One Voltage and Two Current

TekExpress® Automotive PAM3 Analysis Application 49

Running tests

Figure 26: Test setup for 100BASE-T1 Full Duplex mode using both Master and Slave for One Voltage and One Current

50 TekExpress® Automotive PAM3 Analysis Application

Running tests

Figure 27: Test setup for 100BASE-T1 Full Duplex mode using Master for One Voltage and Two Current

TekExpress® Automotive PAM3 Analysis Application 51

Running tests

Figure 28: Test setup for 100BASE-T1 Full Duplex mode using Slave for One Voltage and Two Current

52 TekExpress® Automotive PAM3 Analysis Application

Running tests

Figure 29: Test setup for 100BASE-T1 Full Duplex mode using Master for One Voltage and One Current

TekExpress® Automotive PAM3 Analysis Application 53

Running tests

Figure 30: Test setup for 100BASE-T1 Full Duplex mode using Slave for One Voltage and One Current

54 TekExpress® Automotive PAM3 Analysis Application

Running tests

Figure 31: Test setup for 100BASE-T1 Half Duplex mode using Master for One Voltage

TekExpress® Automotive PAM3 Analysis Application 55

Running tests

Figure 32: Test setup for 100BASE-T1 Half Duplex mode using Slave for One Voltage

56 TekExpress® Automotive PAM3 Analysis Application

Running tests

Figure 33: Test setup for 1000BASE-T1 Full Duplex mode using both Master and Slave for One Voltage and Two Current

Figure 34: Test setup for 1000BASE-T1 Full Duplex mode using both Master and Slave for One Voltage and One Current

TekExpress® Automotive PAM3 Analysis Application 57

Running tests

Figure 35: Test setup for 1000BASE-T1 Full Duplex mode using Master for One Voltage and Two Current

Figure 36: Test setup for 1000BASE-T1 Full Duplex mode using Slave for One Voltage and Two Current

58 TekExpress® Automotive PAM3 Analysis Application

Running tests

Figure 37: Test setup for 1000BASE-T1 Full Duplex mode using Master for One Voltage and One Current

Figure 38: Test setup for 1000BASE-T1 Full Duplex mode using Slave for One Voltage and One Current

TekExpress® Automotive PAM3 Analysis Application 59

Running tests

Figure 39: Test setup for 1000BASE-T1 Half Duplex mode using Master for One Voltage

Figure 40: Test setup for 1000BASE-T1 Half Duplex mode using Slave for One Voltage

60 TekExpress® Automotive PAM3 Analysis Application

Running tests

Compensate the signal path

Use the following procedure to compensate the internal signal acquisition path. Perform this procedure if the ambient temperature has changed more than 5 °C (9 °F) since you performed the last signal path compensation. Perform the signal path compensation once a week. Failure to do so may result in the instrument not meeting warranted performance levels.

1. Power on and wait for the instrument to complete its warm up period before continuing with this procedure.

2. Disconnect any probes you have connected to the input channels.

3. Set the instrument to Menu mode.

4. Select Instrument Calibration from the Utilities menu.

5. Note any instructions that appear in the resulting control window.

6. Click Run SPC to begin the procedure. The procedure may take several

minutes to complete.

7. Verify that the Status changes to Compensated after the procedure is complete. If the Calibration Status field indicates anything other than Compensated, see Signal Path Compensation Status for information on the readout and recommended action.

Running tests

NOTE. When making measurements at vertical scale settings less than or equal to 5 mV, you should perform the signal path compensation at least once a week. Failure to do so may result in the instrument not meeting warranted performance levels at those volts/div settings.

Use Set DUT parameters, select tests, set acquisition parameters, set

configuration parameters, set preferences parameters, and click Start to run the

tests. While tests are running, you cannot access the Setup or Reports panels. To monitor the test progress, switch between the Status panel and the Results panel.

While tests are running, the other applications will be displayed at the background. If you want the TekExpress Automotive PAM3 Analysis application to run in the foreground select Keep On Top from the TekExpress Options menu.

The application displays report when the tests execution is complete.

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Running tests

Prerun checklist

View test results

1. Make sure that the instruments are warmed up (approximately 20 minutes) and stabilized.

2. Perform compensation: In the oscilloscope main menu, select Utilities > Instrument Compensation. Click Help in the compensation window for

steps to perform instrument compensation.

When a test completes, the application switches to the Results panel, which shows a summary of test results.

Each test result occupies a row in the Results table. By default, results are displayed in summary format, with the measurement details collapsed. You can change the view in the following ways:

■

To view the results grouped by lane, test, or data rate, select the corresponding item from the Preferences menu.

■

To expand all tests listed, select View Results Details from the Preferences menu.

■

To expand and collapse tests, use the plus and minus buttons to the left of the test rows.

■

To collapse all expanded tests, select Preferences > View Results Summary.

■

To enable or disable the wordwrap feature, select Preferences > Enable Wordwrap.

■

To expand the width of a column, place the cursor over the vertical line that separates the column from the one to the right. When the cursor changes to a double-ended arrow, hold down the mouse button and drag the column to the desired width.

■

To sort the test information by column, click the column head. When sorted in ascending order, a small up arrow is displayed. When sorted in descending order, a small down arrow is displayed.

■

To clear all test results displayed, click Clear ( ).

62 TekExpress® Automotive PAM3 Analysis Application

Saving and recalling test setup

Test setup files overview

Saved test setup information (such as the selected oscilloscope, general parameters, acquisition parameters, measurement limits, waveforms (if applicable), and other configuration settings) are saved under the setup name at X:\TekExpress Automotive PAM3 Analysis.

Use test setups to:

■

Run a new session, tp acquire live waveforms using a saved test configuration.

■

Create a new test setup using an existing one.

■

View all the information associated with a saved test, including the log file, the history of the test status as it executed, and the results summary.

■

Run a saved test using saved waveforms.

See also

Save a test setup

Open (load) a saved test setup

You can save a test setup before or after running a test. You can create a test setup from already created test setup, or using default test setup. When you select the default test setup, the parameters are set to the application’s default value.

Select Options > Save Test Setup to save the opened setup.

Select Options > Save Test Setup As to save the setup with different name.

TekExpress® Automotive PAM3 Analysis Application 63

Saving and recalling test setup

Open load a saved test setup

To Open (load) a saved test setup, do the following:

1. Select Options > Open Test Setup.

2. Select the setup from the list and click Open. Setup files are located at X: \TekExpress Automotive PAM3 Analysis.

See also

About test setups

Create a test setup using an existing one

Create a test setup from default settings

To create a test setup using default settings, follow the steps:

1. Select Options > Default Test Setup. For default test setup, the parameters are set to the application’s default value.

2. Click application Setup and set the parameters

3. Click application Reports and set the report options

4. Optional: Click Start to run the test and verify that it runs correctly and

captures the specified test information and reports. If it does not, then edit the parameters and repeat this step until the test runs to your satisfaction

5. Select Options > Save Test Setup. Enter the file name and click Save. The application saves the file to X:\Automotive PAM3 Analysis\<session_name>

Create a test setup using an existing one

To create a test setup using an existing one, follow the steps:

1. Select Options > Open Test Setup

2. Select a setup from the list and then click Open

3. Click application setup and modify the parameters

4. Click application reports and modify the report options

5. Select Options > Save Test Setup As

6. Enter test setup name and click Save.

64 TekExpress® Automotive PAM3 Analysis Application

SCPI commands

About SCPI command

You can use Standard Commands for Programmable Instruments (SCPI) to communicate with the TekExpress application.

Socket configuration for SCPI commands

This section describes the steps for TCPIP socket configuration and TekVISA configuration to execute the SCPI commands.

TCPIP socket configuration

1. Click Start > Control Panel > System and Security > Windows Firewall > Advanced settings.

TekExpress® Automotive PAM3 Analysis Application 65

SCPI commands

2. In Windows Firewall with Advanced Security menu, select Windows Firewall with Advanced Security on Local Computer > Inbound Rules

and click New Rule…

3. In New Inbound Rule Wizard menu a. Select Port and click Next.

66 TekExpress® Automotive PAM3 Analysis Application

b. Select TCP as rule apply and enter 5000 for Specific local ports and

click Next.

SCPI commands

c. Select Allow the connection and click Next.

TekExpress® Automotive PAM3 Analysis Application 67

SCPI commands

d. Select Domain, Private, Public and click Next.

e. Enter Name, Description (optional), and click Finish.

68 TekExpress® Automotive PAM3 Analysis Application

SCPI commands

4. Check whether the Rule name is displayed in Windows Firewall with Advanced Security menu > Inbound Rules.

TekExpress® Automotive PAM3 Analysis Application 69

SCPI commands

TekVISA configuration

1. Click Start > All Programs > TekVISA > OpenChoice Instrument Manager.

70 TekExpress® Automotive PAM3 Analysis Application

SCPI commands

2. Click Search Criteria. In Search Criteria menu, click LAN to Turn-on. Select Socket from the drop-down list, enter the IP address of the

TekExpress device in Hostname and type Port as 5000. Click configure the IP address with Port.

Enter the Hostname as 127.0.0.1 if the TekVISA and TekExpress application are in the same system, else enter the IP address of the TekExpress application system.

TekExpress® Automotive PAM3 Analysis Application 71

SCPI commands

3. Click Search to setup the TCPIP connection with the host. Check whether the TCPIP host name is displayed in OpenChoice Instrument Manager >

Instruments.

4. Double-click OpenChoice Talker Listener and enter the Command *IDN?

in command entry field and click Query. Check that the Operation is successful and Talker Listener Readout displays the Command / Data.

72 TekExpress® Automotive PAM3 Analysis Application

SCPI commands

TEKEXP:*IDN?

This command queries the active TekExpress application name running on the oscilloscope.

Outputs

TEKEXP:*OPC?

Outputs

Syntax

Inputs

Syntax

Inputs

TEKEXP:*IDN?\n

Returns active TekExpress application name running on the oscilloscope.

This command queries the execution status of the last executed command.

TEKEXP:*OPC?\n

0 - last command execution is not complete

1 - last command execution is complete

TekExpress® Automotive PAM3 Analysis Application 73

SCPI commands

TEKEXP:ACQUIRE_MODE

This command sets the acquire mode as live or pre-recorded.

Syntax

Inputs

Outputs

TEKEXP:ACQUIRE_MODE {LIVE | PRE-RECORDED}\n

{LIVE | PRE-RECORDED}

TEKEXP:ACQUIRE_MODE?

This command queries the acquire mode type.

Syntax

Inputs

Outputs

TEKEXP:ACQUIRE_MODE?\n

{LIVE | PRE-RECORDED}

74 TekExpress® Automotive PAM3 Analysis Application

SCPI commands

TEKEXP:EXPORT

This command returns all the bytes of data to the specified file.

Syntax Outputs

TEKEXP:EXPORT REPORT\n Returns the report file in bytes

TEKEXP:EXPORT WFM,"<FileName>"\n Returns the specified waveform file in bytes

TEKEXP:EXPORT IMAGE,"<FileName>"\n Returns the specified image file in bytes

TEKEXP:INFO?

Inputs

FileName - Specifies the file name

This command queries the information about the file(s).

Syntax Outputs

TEKEXP:INFO? REPORT\n

TEKEXP:INFO? WFM\n<WfmFile1Size>,"<WfmFileName1.wfm>";<WfmFile2Size>,"<WfmFileNa

TEKEXP:INFO? IMAGE\n

<ReportFileSize>,"<ReportFileName.mht>"

me2.wfm>";...

<Image1FileSize>,"<Image1FileName>";<Image2FileSize>,"<Image2File Name>" ;...

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SCPI commands

TEKEXP:INSTRUMENT

This command sets the value for the selected instrument type.

Syntax

Inputs

Outputs

TEKEXP:INSTRUMENT?

Syntax

TEKEXP:INSTRUMENT "<InstrumentType>",<Value>"\n

InstrumentType

Value

TIP. Check Command parameters list section for InstrumentType and Value parameters.

This command queries the instrument selected for the specified instrument type.

TEKEXP:INSTRUMENT? "<InstrumentType>"\n

Inputs

Outputs

InstrumentType

TIP. Check Command parameters list section for InstrumentType parameters.

Returns the instrument selected for the specified instrument type

76 TekExpress® Automotive PAM3 Analysis Application

SCPI commands

TEKEXP:LASTERROR?

This command queries the last error string occurred for the current TCP session. If there are no errors since startup, or since the last call to TEKEXP:LASTERROR?\n, this command returns an empty string.

TEKEXP:LIST?

Syntax

Inputs

Outputs

TEKEXP:LASTERROR?\n

This command queries the list of available device, suite, test, version or instrument.

Syntax Outputs

TEKEXP:LIST? DEVICE\n Returns the list of available device(s) as comma

separated values.

TEKEXP:LIST? SUITE\n Returns the list of available suite(s) as comma

separated values.

TEKEXP:LIST? TEST\n Returns the list of available test(s) as comma

separated values.

TEKEXP:LIST? VERSION\n Returns the list of available version(s) as comma

separated values.

TEKEXP:LIST? INSTRUMENT,"<InstrumentType>"\n

Returns the list of available instruments' for the given Instrument type as comma separated values.

NOTE. This command returns the list of items within double quotes (""). Iterate the receive procedure until the list ends with double quotes otherwise the next query commands won’t work as expected.

TekExpress® Automotive PAM3 Analysis Application 77

SCPI commands

TEKEXP:POPUP

Syntax

Outputs

Inputs

InstrumentType

TIP. Check Command parameters list section for InstrumentType parameters.

This command sets the response to the active popup shown in the application.

TEKEXP:POPUP “<PopupResponse>”\n

PopupResponse

TEKEXP:POPUP?

Syntax

Inputs

Outputs

This command queries the active popup information shown in the application.

TEKEXP:POPUP?\n

Returns the active popup information in the application.

78 TekExpress® Automotive PAM3 Analysis Application

SCPI commands

TEKEXP:REPORT

This command generates the report for the current session.

Syntax

Inputs

Outputs

TEKEXP:REPORT?

Syntax

Inputs

TEKEXP:REPORT GENERATE\n

GENERATE

This command queries the queried header field value in the report.

TEKEXP:REPORT? “<HeaderField>”\n

HeaderField - Specifies to return the measured value for the indicated test.

TIP. Check Report for HeaderField parameters.

Outputs

Returns the queried header field value in the report

TekExpress® Automotive PAM3 Analysis Application 79

SCPI commands

TEKEXP:RESULT?

This command queries the result available in report summary/details table.

Syntax Outputs

TEKEXP:RESULT? "<TestName>"\n Return Pass/Fail status of the test.

TEKEXP:RESULT? "<TestName>","<ColumnName>"\n

TEKEXP:RESULT? "<TestName>","<ColumnName>",<RowNumber >\n

Returns all the row values of the specified column for the test.

Returns the column value for the specified row number

Inputs

TestName - Specifies the name of the test for which to obtain the test result value.

ColumnName - Specifies the column name for the measurement

RowNumber - Specifies the row number of the measurement

TIP. Check Results panel for TestName, ColumnName, and RowNumber parameters.

Row number starts from zero.

80 TekExpress® Automotive PAM3 Analysis Application

SCPI commands

TEKEXP:SELECT

This command selects the device, suite, version, or test.

Syntax

Inputs

Outputs

TEKEXP:SELECT?

TEKEXP:SELECT <string1>,<string2>,<string4>\n

TEKEXP:SELECT TEST,<string3>,<string4>\n

<string1> = {DEVICE | SUITE | VERSION}

<string2> = {DeviceName | SuiteName | VersionName}

<string3> = {“<TestName>"| ALL| REQUIRED }

<string4> = {TRUE | FALSE}

TIP. Check Command parameters list section for DeviceName, SuiteName, VersionName, and TestName parameters.

This command queries the name of the selected device, suite, version, or test.

Syntax

Inputs

TEKEXP:SELECT? {DEVICE | SUITE | TEST | VERSION}\n

{DEVICE | SUITE | TEST | VERSION}

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SCPI commands

Outputs

TEKEXP:SETUP

TEKEXP:STATE

Inputs

Returns the name of the selected device, suite, version, or test.

This command sets the value of the current setup.

Syntax Outputs

TEKEXP:SETUP DEFAULT\n Restore to default Setup

TEKEXP:SETUP OPEN,"<SessionName>"\n Open the session

TEKEXP:SETUP SAVE\n Saves the already existing modified session

TEKEXP:SETUP SAVE,"<SessionName>"\n Save the session

SessionName - The name of the session

This command sets the execution state of the application.

Syntax

Inputs

Outputs

TEKEXP:STATE {RUN | STOP | PAUSE | RESUME}\n

{RUN | STOP | PAUSE | RESUME}

82 TekExpress® Automotive PAM3 Analysis Application

SCPI commands

TEKEXP:STATE?

This command queries the current setup state.

Syntax Outputs

TEKEXP:STATE? RUNNING | PAUSED | WAIT | ERROR | READY

TEKEXP:STATE? SETUP SAVED | NOT_SAVED

TEKEXP:VALUE

This command sets the value of parameters of type General, Acquire, Analyze, or DUTID.

Syntax

Inputs

TEKEXP:VALUE GENERAL,"<ParameterName>",“<Value>”\n

TEKEXP:VALUE ACQUIRE,“<TestName>","<AcquireType>", "<ParameterName>",“<Value>”\n

TEKEXP:VALUE ANALYZE,“<TestName>","<ParameterName>".“<Value>” \n

TEKEXP:VALUE DUTID,“<Value>”\n

TEKEXP:VALUE VERBOSE,{TRUE | FALSE}\n

TEKEXP:VALUE WFMFILE,<Test_Name>,<Aquire_Type>,<FilesName1$FileName2>\n

ParameterName - Specifies the parameter name

TestName - Specifies the test name

AcquireType - Specifies the acquire type

Value - Specifes the value to set

FilesName1$FileName2 - Specifies the waveform file name

TRUE - Pop-ups are enabled

FALSE - Pop-ups are disabled

TIP. Check Command parameters list section for ParameterName, AcquireType, and Value parameters.

TekExpress® Automotive PAM3 Analysis Application 83

SCPI commands

Outputs

TEKEXP:VALUE?

This command queries the value of the parameter for type General, Acquire, Analyze, or DUTID.

Syntax Outputs

TEKEXP:VALUE? GENERAL,"<ParameterName>"\n

TEKEXP:VALUE? ACQUIRE,“<TestName>", "<AcquireType>","<ParameterName>"\n

TEKEXP:VALUE? ANALYZE, “<TestName>","<ParameterName>"\n

TEKEXP:VALUE? DUTID\n Returns the DUTID value

TEKEXP:VALUE? WFMFILE,<Test_Name>,<Aquire_Type>\n

TEKEXP:VALUE? VERBOSE Returns the verbose mode type

Returns the value of Parameter for type GENERAL

Returns the value of Parameter for type ACQUIRE

Returns the value of Parameter for type ANALYZE

Returns the waveform file name

Inputs

Outputs

ParameterName - Specifies the parameter name

TestName - Specifies the test name

AcquireType - Specifies the acquire type

TRUE - Pop-ups are enabled

FALSE - Pop-ups are disabled

TIP. Check Command parameters list section for ParameterName and AcquireType parameters.

Returns the value of Parameter for type GENERAL | ACQUIRE | ANALYZE | DUTID.

84 TekExpress® Automotive PAM3 Analysis Application

SCPI commands

Command parameters list

This section provides the parameters list for the SCPI commands.

Table 20: ParameterName and Value for DUT tab

Parameters Description Default value

DUT ID Specifies the value parameters

For DUTID, valid value is: Comment

Acquiremode Specifies the acquire mode parameters

■

Acquire live waveforms

■

Use pre-recorded waveform files

Acquire live waveforms

Suite

Signal Debug Mode

Communication Mode

Test Point

Probes Configuration

Master Source Selection

■

100BASE-T1

■

1000BASE-T1

■

True

■

False

Enables Ref and Math. Range for Ref: Ref1 to Ref6 Range for Math: Math1 to Math6

■

Full Duplex

■

Half Duplex

■

Master

■

Slave

■

Both

■

One voltage and one current

■

One voltage and two current

100BASE-T1

True

Full Duplex

Master

One voltage and one current

NOTE. Number of channels will be varied based on the oscilloscope model used. For example, MSO54/64 (4 channels), MSO56 (6 channels) or MSO58 (8 channels).

Voltage CH1-CH4 CH1

Current 1 CH1-CH4 CH2

Current 2 CH1-CH4 CH3

Slave Source Selection

Voltage CH1-CH4 CH1

Current 1 CH1-CH4 CH2

Current 2 CH1-CH4 CH3

TekExpress® Automotive PAM3 Analysis Application 85

SCPI commands

Parameters Description Default value

Sample Rate 100BASE-T1

■

.625

■

1.5625

■

3.125

■

6.25

■

12.5

■

1000BASE-T1

■

1.5625

■

3.125

■

6.25

■

12.5

3.125 GS/s

■

Record Length 1 M to 20 M 1 M

Ref Resistance 1 Ohm to 200 Ohms 100 Ohms

Current Loop

■

Search Time 1 ns to 1000 ns 32 ns

Schematic Displays the schematic as per the

NA communication mode, test point, and the configured probes.

Signal Separation Signal Separation will be enabled based on

NA the license. Signal debug mode enables Ref and Math.

86 TekExpress® Automotive PAM3 Analysis Application

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Table 21: ParameterName and Value for DUT tab-Signal Corrections

Parameter Description Default value

Probe settings 100BASE-T1 voltage probe

■

TDP1500

■

TDP3500

100BASE-T1 current probe

■

TCP0030A

■

P6022

■

CT6

1000BASE-T1 voltage probe

■

TDP3500

1000BASE-T1 current probe

■

CT6

■

For 100BASE-T1 voltage probe TDP1500

■

For 100BASE-T1 current probe TCP0030A

■

For 1000BASE-T1 voltage probe TDP3500

■

For 1000BASE-T1 current probe - CT6

Apply Skew Settings

Master Skew Configuration

■

Voltage

■

Current 1

■

Current 2

Slave Skew Configuration

■

Voltage

■

Current 1

■

Current 2

■

True

■

False

Range from -125 to +125 ns

True

■

100BASE-T1

■

1000BASE-T1

For TCP0030A:

■

Voltage - 0 ns

■

Current1 - 9.2 ns

■

Current2 - 9.2 ns

For P6022:

■

Voltage - 0 ns

■

Current1 - 5.2 ns

■

Current2 - 5.2 ns

For CT6:

■

Voltage - 0 ns

■

Current1 - 0 ns

■

Current2 - 0 ns

■

Voltage - 0 ns

■

Current1 - 0 ns

■

Current2 - 0 ns

Apply Attenuation Settings

■

True

■

False

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SCPI commands

Parameter Description Default value

Master Attenuation Settings

■

Voltage

■

Current 1

■

Current 2

Range from -200 dB to +200 dB 0

Slave Attenuation Settings

■

Voltage

■

Current 1

■

Current 2

Range from -200 dB to +200 dB 0

Ratio Range from 1 to 10 1

Apply Signal Correction

■

True

■

False

Table 22: ParameterName and Value for DUT tab-Clock Recovery and Filter Setup

Parameter Description Default value

Baud Mode

Manual

■

Baud Rate

■

Percentage of Deviation

■

Auto

■

Manual

■

Baud Rate - 6.66 M Baud/s to 666.66 M Baud/s

■

Percentage of Deviation - 1 to 30

Auto

For 100BASE-T1:

■

Baud rate - 66.66M Baud/s

■

Percentage of Deviation - 5

For 1000BASE-T1:

■

Baud rate - 750 M Baud/s

■

Percentage of Deviation - 5

PLL Model

Type2

■

Damping

■

Loop Bandwidth

CTLE Design

■

Type1

■

Type2

■

Damping - Range 0.45 to 2

■

Loop Bandwidth - Range 0.1 to 30 MHz

■

2 Poles + 1 Zero

■

3 Poles + 2 Zeros

Range from 0.01 to 1 1

Type1

■

Damping - 0.707

■

Loop Bandwidth - 1 MHz

2 Poles + 1 Zero

88 TekExpress® Automotive PAM3 Analysis Application

SCPI commands

Parameter Description Default value

FZ1 (MHz) Range from 0.01 to 3000 For 100BASE-T1:

■

FZ1 (MHz) - 33.33 MHz

For 1000BASE-T1:

■

FZ1 (MHz) - 375 MHz

FZ2 (MHz) Range from 0.01 to 3000 For 100BASE-T1:

■

FZ1 (MHz) - 46.662 MHz

For 1000BASE-T1:

■

FZ1 (MHz) - 525 MHz

Fp1 (MHz) Range from 0.01 to 3000 For 100BASE-T1:

■

FZ1 (MHz) - 133.32 MHz

For 1000BASE-T1:

■

FZ1 (MHz) - 1500 MHz

Fp2 (MHz) Range from 0.01 to 3000 For 100BASE-T1:

■

FZ1 (MHz) - 199.98 MHz

For 1000BASE-T1:

■

FZ1 (MHz) - 2250 MHz

Fp3 (MHz) Range from 0.01 to 3000 For 100BASE-T1:

■

FZ1 (MHz) - 46.662 MHz

For 1000BASE-T1:

■

FZ1 (MHz) - 525 MHz

Apply Filters

■

True

■

False

Master/Slave Near End Filter File X:\ Automotive PAM3 Analysis\Filter Files

False

None

\CTLE

Master/Slave Far End Filter File X:\ Automotive PAM3 Analysis\Filter Files

None

\CTLE

Apply Inverse PR Shaping Filter

■

True

■

False

True

Coeff1 Range from 0.01 to 0.99 0.65

Coeff2 Coeff2 value is automatically taken based on the coeff1 value.

No Of Taps Range from 3 to 18 12

TekExpress® Automotive PAM3 Analysis Application 89

SCPI commands

Table 23: ParameterName and Value for Preferences tab

Parameters Description Default value

Number of Runs 1 to 1000 1

Acquire /Analyze each test True or False True

On Test Failure pause the test and let me investigate

On Test Failure stop and notify me of the failure

Popup Settings

Enable Logging True or False True

True or False False

■

Auto Close Warnings and Informations

False

during Sequencing. Auto Close after (1 to 60) seconds

■

Auto Close Error Message during Sequencing Show in Reports. Auto Close after (1 to 60) seconds

■

Show Messages with a beep sound

Table 24: ParameterName and Value for Analyze

Test Name Acquisition Type Parameter Name Values Default value

Eye

■

Eye Height

■

Eye Width

Jitter

■

Random Jitter (DD)

■

Deterministic Jitter (DD)

Jitter

■

Total Jitter @ BER

PAM3 Signals Apply Mask True or False False

Master Near End Mask

None

File

Master Far End Mask File

Slave Near End Mask File

Slave Far End Mask File

PAM3 Signals Pattern Detection

Pattern Detection>Manual

Pattern Type->Repeating Pattern Length (UI)

■

Auto

■

Manual

Pattern Type

■

Repeating

■

Arbitrary

Auto

Repeating

ranging from 2 to 100000

Pattern Type->Arbitrary Window Length (UI) range

from 2 to 24

PAM3 Signals Pattern Detection

■

Auto

Manual

Auto

90 TekExpress® Automotive PAM3 Analysis Application

Tektronix TekExpress Automotive PAM3 Analysis Application Help Online Help

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Welcome

Getting help and support

Related documentation

Conventions

Technical support

Getting started

Supported oscilloscopes

Recommended probes

Downloading and installing the software

Activate the license

View software version

Application directories

File name extensions

Operating basics

Launch the application

Exit the application

Application controls

Global application controls

Options menu overview

Configure email settings

Application panels overview

Setup panel

Setup panel overview

Set DUT parameters

Select tests

Status panel overview

Results panel

Results panel overview

Preferences menu

View test-related files

Reports panel

Reports panel overview

Select report options

View a report

Report content

Running tests

Equipment connection diagram

Compensate the signal path

Running tests

View test results

Saving and recalling test setup

Test setup files overview

Save a test setup

Open load a saved test setup

Create a test setup using an existing one

Create a test setup from default settings

SCPI commands

About SCPI command

Socket configuration for SCPI commands

TEKEXP:*IDN?

TEKEXP:*OPC?

TEKEXP:ACQUIRE_MODE

TEKEXP:ACQUIRE_MODE?

TEKEXP:EXPORT

TEKEXP:INFO?

TEKEXP:INSTRUMENT

TEKEXP:INSTRUMENT?

TEKEXP:LASTERROR?

TEKEXP:LIST?

TEKEXP:POPUP

TEKEXP:POPUP?

TEKEXP:REPORT

TEKEXP:REPORT?

TEKEXP:RESULT?

TEKEXP:SELECT

TEKEXP:SELECT?

TEKEXP:SETUP

TEKEXP:STATE

TEKEXP:STATE?

TEKEXP:VALUE

TEKEXP:VALUE?

Command parameters list