Teledyne-lecroy USB File Based Decode Manual Manual de usuario descargar pdf (Pagina 23)

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

Reference Manual

Length=1

Set Length to a numeric value when a certain specified amount of data should be

transferred during the data stage of a device request or as a structure on an endpoint.

Use a question mark (?) when an unknown number of bytes can be transferred:

Length=?

In this case, all of the data will be decoded.

LOBYTE

Use LOBYTE in conjunction with HIBYTE in order to display two values in 2-byte

wValue and wIndex fields. LOBYTE refers to the Least Significant Byte. Please see

“HIBYTE” on page 18 for examples.

Name

Use Name to specify the header for a data field. The Name string will appear as the

title of the cell representing the data field, and the decoding for the field will appear

as the text for this cell. The Name string also serves as the title for the decoded bit

data in the Data field’s tooltip window in the case of bitmap decoding. For example,

this code from GET_CONFIGURATION in standard.req

Bytes(0,0)={

Name=Current Configuration

FormatValue= configuration # %d

}

could produce this cell:

Also, if the decoding dialog is launched, there will be two lines representing the

field – the first line will contain the Name string followed by a colon, and the second

will have the decoding of the field:

Figure 11: NAME as title of data

field cell

Figure 12: NAME string in decoding dialog

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 35 36

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Teledyne-lecroy USB File Based Decode Manual Manual de usuario Pagina 23