Technical Library

Technical Library

The Application Notes 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.

Application Notes on this site are available in PDF format for easy download.

Application Notes

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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.