Teledyne LeCroy USBTracer_Trainer - Users Manual - Manual (Page 173)

USB Protocol Suite User Manual Chapter 8: Decode Requests
LeCroy Corporation
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You can create your own .dec file for a Class or Vendor Request. For more information
on the format of these Script Decoder files and the Script Decoding language, read the
Script Decoder Manual.
8.2 Class/Vendor Decoding Options
The software will automatically assign decoders based on the enumeration sequence in
a recorded file. If the enumeration sequence is not captured, or if software assigns an
incorrect decoder, you may manually select a decoder.
You can permanently assign a class or vendor decoding for an address and/or endpoint
or interface in a trace file. Once assigned, the decoding occurs automatically when you
display transactions.
8.2.1 Mapping Request Recipient to Class/Vendor
Decoding
To assign a decoding group to a request recipient,
Step 1 Click the Apply Decoding Scripts button on the Toolbar.
OR
Right-click the Control Transfer field to display the USB Device Request menu:
Step 2 Select Map Request Recipients to Class/Vendor Decoding to display the
Request Recipient and Endpoints dialog box:
The Recipient field shows all Class and Vendor Request Recipients found in the
trace file. The display shows the Host, Address, and Type (Class or Vendor) for
the recipient. On the right are the names of Class/Vendor Decoding groups
currently assigned to recipients. If blank, no decoding is assigned for a recipient.
Step 3 Select a recipient.