Teledyne LeCroy HPT - Users Manual - Manual (Page 5)

CATC HPT User’s Manual Version 2.27
Page 3
3.1 Connectors and Cables
All connectors have a limited life (i.e., number of connect/disconnects before failure). When
testing multiple hosts, be sure to plug and unplug cables at the host only, not at the HPT box.
There is generally no need to disconnect the B-type USB connectors from the HPT. There is also
no need to power down the HPT box between tests.
Additionally, forceful or otherwise improper connection and disconnection of USB cables can
damage the cables and connectors on the USB host system and the CATC HPT box.
Note that the CATC Warranty (see “Warranty and License”) specifically excludes damage
caused by this kind of product misuse.
USB ports on the host PC under test can be connected to the HPT box in either order; this will
only affect the sequence in which the ports are tested. The software will first test the port
connected to “CH 1”, then that connected to “CH 2”.
Note: To observe bus traffic, a CATC Inspector or Detective USB Bus & Protocol Analyzer can
be connected between the CATC HPT box and the host system under test.
4. SOFTWARE INSTALLATION
4.1 Software Components
The CATC HPT software diskette includes the following files:
•
USB_HPT.EXE executable code of the CATC HPT program
•
USB_HPT.CFG configuration text file for the USB host controller
(used only for Intel PIIX3 UHCI systems)
4.2 Installing the software
Make a copy of the CATC diskette for backup, then copy usb_hpt.exe (and also usb_hpt.cfg, in
the case of Intel PIIX3 UHCI systems) to the hard drive of the USB-capable host PC to be tested.
4.3 Running the software
The HPT software program (usb_hpt.exe) is a DOS application and must be run under the DOS
operating system. It supports both UHCI and OHCI USB host controller implementations.
The program scans the PC’s PCI devices and locates the USB host controller by class code. It
uses the first host controller it finds as the test target. On some systems with a USB-aware BIOS,
the software may fail to communicate with the USB host controller; should this occur, contact
CATC technical support (see “How to Contact CATC”).
To run the program, type USB_HPT at the DOS prompt and press the “Enter” key. The program
will clear the monitor screen and begin execution. During the test, the program displays the test
results on the monitor screen. The tests conclude in less than 10 seconds, leaving the test results
on the screen. To terminate the program and get back to the DOS prompt, press any key.