Teledyne-lecroy QPHY-SATA Manuel d'utilisateur télécharger pdf (Page 17)

QPHY-SATA Software Option

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Test Pattern Generation Using LeCroy -SAS Tracer/Trainer

Note: All the scripts described in this section can be edited to generate other results. Any modifications to the scripts are made at the

exclusive risk of the user. LeCroy is not responsible for changes made by users that modify the expected behavior or produce software or

equipment malfunctions.

Testing a SATA product requires the generation of test patterns to determine compliance to SATA specifications.

The following five test patterns are used by QPHY-SATA:

1. HFTP = High Frequency Test Pattern

2. MFTP = Medium Frequency Test Pattern

3. LFTP = Low Frequency Test Pattern

4. LBP = Lone Bit Pattern

5. SSOP = Simultaneous Switching Outputs Pattern

Any method that causes the Product Under Test (PUT) to produce the required patterns is acceptable. LeCroy

uses a protocol exerciser to communicate with the PUT and instruct it to enter the built-in self-test (BIST) mode to

generate the test patterns. LeCroy’s SASTracer software allows you to load individual scripts to cause the

exerciser to initiate SATA traffic. These scripts use BIST Activate FIS; the PUT must be able to respond to BIST

Activate. The following section describes the specific actions required to successfully generate test patterns from

a PUT connected to the LeCroy SAS Tracer/Trainer. It is assumed that you have started the SASTracer/Trainer

software on the host computer and established communication with the Tracer/Trainer instrument via USB. When

you are prompted to generate a specific test pattern during the execution of a SATA script, the requested pattern

can be created by using the following steps:

1. Connect the SASTracer/Trainer to the PUT:

 To test a SATA device, connect a SATA cable between the LeCroy Protocol Exerciser “To Target” port and

the Protocol Analyzer “Initiator” port. Then connect a second SATA cable between the Protocol Analyzer

“Target” port and the device, as shown in the following figure:

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Teledyne-lecroy QPHY-SATA Manuel d'utilisateur Page 17