Technical Library

Technical Library

The App Notes/LAB Brief section of the Teledyne LeCroy Technical Library lets you search for, browse, and print the latest technical documentation. A search aid allows you to filter documents by category or keyword.

App Notes/LAB Brief on this site are available in PDF format for easy download.

App Notes/LAB Brief

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Radar Measurement Techniques: Characterizing PRI Stagger During Walkoff

Accurate time domain measurements such as PRI (pulse repetition interval) stagger during walkoff have not been possible using traditional frequency domain equipment. With the advent of ultra-high bandwidth real time oscilloscopes and timing parameter tracking, accurate time domain ECM (electronic countermeasures) flightline testing such as gated PRI, PRI stagger variation, and parametric timing measurements of a demodulated pulse are now possible using high bandwidth real time oscilloscopes. This technical brief describes how these complex measurements can be performed using an oscilloscope.

Accurate ESD Pulse Testing Using Oscilloscopes

This application brief discusses the recommended methods and best practices for testing ESD (electrostatic discharge) pulses using real-time oscilloscopes.

Capture of an NVMe Boot up trace

In order for the LeCroy Summit Protocol analyzer to properly decode and display traces for NVMe, the analyzer software must have record of which PCIe devices are Mass Storage, what is the MBAR address, what address each queue has, as well as several other pieces of information that is typically established shortly after a PCIe link is established and devices under test come online. Typically the easiest way for the analyzer to get this information, and properly decode an NVMe trace, is to capture a trace at boot up. Every trace captured after this boot up trace will used the same decoding mapping, eliminating the need for future boot up captures. While this is a simple process, there are a few settings that may help get the complete trace with all relevant details needed for the SSD decode mapping.

Introduction to SATA Trainer

While the SAS/SATA Trainer supports both SAS and SATA protocols, there are significant differences in implementation between SAS and SATA. The SATA protocol uses primitives to set the state of flow control in a manner that is very different than what is used in SAS and uses none of SAS’s credit based methods of flow control. In addition, while the SAS/SATA protocol suite includes definitions for all standard SAS frames in include files, there are no included definitions for SATA frames to be drawn upon in scripting a SATA trainer script. For these reasons scripting a SATA trainer script requires a different methodology than what is typically used in a SAS script.

PCIe Suite Data Pattern Search

Teledyne LeCroy PCIe suite supports a versatile data pattern search. This technical brief will show how us the search tool to locate a file directory to determine the starting LBA of the directory structure.

PCIe Suite Data Pattern Trigger

Teledyne LeCroy PCIe suite supports a versatile data pattern trigger. This technical brief will show how us the trigger in typical use cases as a tool to locate a file or directory access or simply to trigger on a starting LBA. This technical brief will focus on an NVMe application however the methodology is applicable to many other scenarios.

SATA Device Data Compare

The Teledyne LeCroy SATA and SAS Host and Initiator Emulator tools include a feature that makes it easy to perform write-then-read data compare tests on SATA or SAS storage devices such as HDDs and SSDs. This tech brief details the functionality and use of the “” example Host Emulation script included with the SAS/SATA Protocol Suite software installation.

Using the Trainer to Send BIST Activate Frame

The Sierra Trainer can be used to place a SATA Host or Device into Built In Self Test (BIST) loopback mode, usually for the purpose of transmitter testing. This technical brief details an easy step-by-step method for placing a SATA device into “Far end transmit-only,” aka “T” mode, with the Sierra Trainer.

Create Custom Masks for Zi Series Scopes

The SDA series of Serial Data Analyzers are powerful tools for the measurement and analysis of serial communications systems. While they contain an ever growing library of serial data standards there is always a need to be able to create or modify test masks for newer or modified serial communications standards. The LeCroy Masks Database Editor is a software tool which allows users to quickly create and load custom test masks in and SDA series analyzer.