LeCroy Sierra M6-2, Руководство пользователя

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Sierra M6 ‐ 2 SAS/SATA Protocol Analyzer User Manual 325
InFusion Scenarios LeCroy Corporation
on the 20th payload of a Data FIS, you can change/capture the 12th dword onwards. 11th
payload dword and preceding dwords are not accessible for change/capture)
You can not change a state based on back ‐ to ‐ back events. At 6G speed,there should be at
least one dword between the triggering event of two consecutive states. At other speeds,
back
‐ to ‐ back dword state transitions might rarely be missed, so best practice is to never
assume back ‐ to ‐ back dword events.
As described later in this chapter, you can create any number of scenarios and store them
in libraries on the PC hard drive. Scenario library files names are in the following format:
<filename> .infdb
Creating InFusion scenarios is easy, but it requires an understanding of the following
terms defined in Table 1.
TABLE 4.1: Key Scenario Terms
Global Rules
Global Rules are a portion of the scenario that can define only one test state. To create
the Global Rules, you use the menu
‐ driven interface to enter an event or combined event
and the corresponding action or set of actions (the response of InFusion hardware to the
event).
In the case of a combined event, the action is taken upon occurrence of any of the events
stated for the event combination. It is a logical OR association, meaning any of the events
can trigger the action.
Term Definition
Action InFusion response to an event.
Event Condition that is detectable by InFusion.
Combined
Event
Logical OR association of events (for example, event A OR event B).
Global Rules
Portion of a scenario that can define a single InFusion test state.
You can think of the Global Rules and each sequence as a separate
test routine or program operating within the scenario. Each
operates independently and in parallel with the others. The
purpose of each is to detect events and then respond with the
appropriate action or set of actions. In essence, you can operate up
to three test states simultaneously within InFusion.
Sequence
Portion of a scenario that can define multiple InFusion test states.
More flexible than the Global Rules, a sequence allows more
powerful scenarios that include branching and looping between
test states (Global Rules can define only a single test state, so there
is no branching).
State
“Behavior” of the Global Rules or a sequence at any point in time.
In terms of InFusion testing, behavior is “waiting” for a set of events
and responding with a set of actions.