Device Signal Quality Testing
2
DSOX4USBSQ USB 2.0 Signal Quality Analysis Application Electrical Testing Notes
37
3
In the Device Test dialog box, click
Enumerate Bus
once.
All devices attached to the host controller should appear in the device
enumeration list.
If you do not know which VID/PID belongs to the device under test,
detach the device under test and enumerate the bus once. Then
reattach the device under test and enumerate again, this time paying
attention to the new device attached.
4
Highlight the device under test and select
LOOP DEVICE DESCRIPTOR
from
the
Device Command
drop down menu.
5
Click
EXECUTE
once.
