Teledyne-lecroy STX M6-1 SAS_SATA Protocol Analyzer User Manual Uživatelský manuál stáhnout pdf (Strana 402)

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101

LeCroy Corporation Sierra Trainer Generation Language

400

 Sierra M6‐4 SAS/SATA Protocol Analyzer User Manual

SATADevice

As a Device, Trainer can receive commands and respond to them in normal or some

popular error conditions. Limitations are:

 Uses only one command at a time. Command queuing is not supported.

 Does not save incoming write data. Sends back data for all LBAs or generates

counter/random data. Cannot be used as a real formatted partition. To use the

Trainer as a SATA Device in real configurations, only tools like IO‐METER (that can

work with un‐partitioned and un‐formatted drives) can be used.

Variable Definition

Variable definition is like definitions in programming languages. You can define up to 512

DWORD (32‐bit) variables. There is no constraint on variable names, except you cannot

use keywords. Variable scopes are general and you should define them in the script

header before the generation block.

The syntax of variable definition is:

VAR32 @VariableName1, @VariableName2, ...

VAR64 @VariableName

VAR64 holds field values greater than 32 bits, such as SASAddress.

Note:Variable names should start with @.

Assigning Variable Values

You can set variable values in different ways:

Constantvalue:

@varName1 = 1234

Othervariablevalue:

@varName1 = @varName2

Resultofexpressiononothervariables:

@varName1 = @varName1 + @varName2

Fieldsoflastreceivedframe:

@varName1 = (SSPFrame)LRF::FrameType,

where LRF is Last Received Frame

Note:Specifying packet type (SSPFrame) before LRF causes last received frame to be this packet type,

and field start‐bit position is calculated according to the packet‐type definition.

Partoflastreceivedframe:

@varName1 = LRF[stratBitOffset:endBitOffset],

where offsets are bit based

Randomvalues:

@varName1 = Random

1 2 ... 397 398 399 400 401 402 403 404 405 406 407 ... 467 468

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