Teledyne-lecroy USB File Based Decode Manual Manuel d'utilisateur télécharger pdf (Page 19)

COMPUTER ACCESS TECHNOLOGY CORPORATION USB REQUEST DEFINITION (.REQ) FILES

Reference Manual

Depends(...)

Use Depends(...) to create a definition that displays a a field or a set of fields

in different ways, depending on certain conditions. It works similarly to a C

language switch statement. The basic structure of a Depends(...) definition

is this:

Depends(<keyword>[&<mask value>]

opt

{

<value>=

{

...

}

...

[<keyword>= ...]

opt

}

Keywords

Keywords that can be used inside the parentheses of a Depends(...) definition

are: bmRequestType, Databytes(m,n), wIndex, and wValue. The value

to which the keyword refers is the condition that the decoding depends upon.

Possible values, along with their corresponding decoding definitions, are listed

within the curly braces on the right-hand side of the Depends(...) entry. In this

example,

wValue=

{

Depends(bmRequestType)=

{

0x01=

{

WordValue=

{

0x0000=One

}

0x02=

{

FormatValue=Two %d

}

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Teledyne-lecroy USB File Based Decode Manual Manuel d'utilisateur Page 19