Teledyne LeCroy QPHY-USB - Manual (Page 20)

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QPHY-USB Operator’s Manual Rev F
USB-IF Test Scripts
The test package uses USB-IF written test scripts specifically made to analyze test data acquired by the
oscilloscope. These scripts are also released by the USB-IF as a stand-alone program called the USB Electrical
Analysis Tool (USBET).
Test Bed Computer
A host computer with a USB2.0 controller card is required to place the device under test (DUT) into the necessary
test modes. This computer must be running Windows 2000 Professional or Windows XP, and have the USB-IF
High-Speed Electrical Test Toolkit (USBHSET) installed. The instructions in the LeCroy test package prompt to
execute specific functions within the USB High-Speed Electrical Test Toolkit on the host computer for various
tests. Best practice is to use an external host computer, separate from the oscilloscope, as the test bed computer.
Both the USBET and the USBHSET can be downloaded from the USB-IF Web site at the following address:
UU
http://www.usb.org/developers/tools/
UU
The test package has been validated with version 1.1.0.4 of the USBHSET.
Open the HS Electrical Test Tool as follows: Windows Start Menu Programs USB-IF Test Suite USB
HS Electrical Toolkit HSElectricalTestTool.
The main menu is then shown as follows.
Figure 14. USB-IF HS Electrical Test Tool main menu
Note: All USB devices are disabled when the HS Electrical Test Toolkit is started. Functionality is restored upon exiting the Test Tool menu.
This means that during this process, a USB mouse and/or keyboard are disabled.
If a USB 2.0 host is found, it appears on the list box control. If no host is found either there is no USB 2.0 host or
the driver is not functioning correctly.
Note: If the USB-IF supplied HS Electrical Test Tool stops working and does not exit normally, open the Device Manager and remove all the
USB hosts, devices, and hubs, and then reboot the computer.