Teledyne LeCroy USB Protocol Suite User Manual (Voyager_Advisor T3_Mercury) - Manual (Page 281)

USB Protocol Suite User Manual 281
Recording Rules Actions and Action Properties Teledyne LeCroy Corporation
cases occurs, click the Momentary Disconnect button on the toolbar to cause a Disconnect/
Reconnect cycle of the VBus. If cycling does not work, disable and then re‐enable the xHCI Host
controller driver in the Windows 7 Device Manager of your PDK.
For Polarity Inversion, Downstream and/or Upstream, select On, Off, or Auto. For Simple
Filters, you can Filter‐Out Logical Idles, Filter‐Out SKPs, Filter‐Out LUP/LDN,Filter‐Out
ITP or Filter‐Out Bus Events (LFPS, EIdle, Term).
For Simple Triggers you can select the relevant Downstream and Upstream Triggers.
Select one of the Framing Error Triggers, Low Power States and CRC Error Triggers.
Truncate Data Fields
Truncate the data fields in a Data payload Packet to the length specified in the pull‐down
selection.
Check External Trigger Out with Sample Triggers if needed.
Note: Truncating the payload will allow for more packets to fit in a trace, but it has the potential to
prevent accurate decoding to higher layers (transfers, SCSI, etc).
10.6 Recording Rules Actions and Action Properties
Note: For both USB 2.0 and USB 3.0.
The Actions are:
* Filter‐Out
Filtering Start‐of‐Frames (SOF's) in USB 2.0 captures can inhibit the ability of the
software to decode upper layers (transfer and above) properly. The SOF is used as a
delimiter of traffic in the analysis heuristics, and it's absence can cause a failure to
recognize whether transactions should or should not be joined into a given transfer.
If you are seeing transfers that do not appear correct (for example, at the SCSI level),
Event Description
Trigger** Indicate Trigger event in the captured trace file.
Stop Recording*** Stop further recording once the trigger
condition has been met. (USB 3.0 only)
Filter‐In Include in the trace file the event specified (and
no others).
Filter‐Out* Exclude from the trace file the event specified.
Advance the Sequence Go to the next state in this sequence
(sequence in which this action is located).
Restart All Restart all sequences.
External Trigger Pulse
HIGH Send HIGH pulse on external trigger output.
Properties Opens the Event Properties dialog box.