Teledyne-lecroy USB File Based Decode Manual Uživatelský manuál stáhnout pdf (Strana 17)

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

Reference Manual

Additional Request Keywords

The keywords Define, GroupName, GroupType, Standard, Class,

Vendor, ClassCode, VendorID, ProductID, AllRequests,

Request(...), wValue, wIndex, Data, WordValue, FormatValue,

and Bitmap have already been covered.

However, there are a number of additional keywords available to further define

requests. This section details the usage of those remaining keywords.

bmRequestType

Use bmRequestType to refer to the actual bmRequestType bitmap value. See

“Depends(...)” on page 15 for examples of its use.

Bytes(x, y)

Bytes(x, y) is used to identify a field within the Data stream. This field can be

subsequently decoded using one of the decoding keywords. The x and y values

represent the bytes to decode:

Data=

{

Bytes(0,1)=

{

FormatValue=The first two bytes are 0x%4X

}

A question mark (?) may be used to represent the y value. This will cause data

decoding to start at the byte specified by the x value, and continue all the way to the

last byte in the data. This example starts decoding at byte 5 and also decodes all data

that follows byte 5.

Bytes(5,?)

Color(R,G,B)

Use Color(R,G,B) to specify a color for the header portion of a Data field. The

color is represented inside the parentheses by its red, green and blue values. For

example,

Color(255, 0, 0)

will make a red header field.

Databytes(x, y)

Use Databytes(x, y) to identify a field in the Data stream on which a

Depends(...) definition for another Data field should be based.

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 35 36

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Teledyne-lecroy USB File Based Decode Manual Uživatelský manuál Strana 17