Connect-Tek USB-16 User Manual download pdf (Page 8)

Host High Speed Electrical Test Procedure Revision 1.4

and down due to mid frequency switching power supply. Connecting the DSO ground to the DUT

ground will be require to establish a common ground reference.

3.2 Operating Systems, Software, Drivers, and Setup Files

3.2.1 Operating Systems

Microsoft Windows 2000 or XP Professional is required on the High-speed Electrical Test Bed

Computer. Microsoft Windows 2000 or XP Professional is required on the High-speed Signal

Quality Analysis Computer. Please refer to the High-speed Electrical Test Setup Instruction for

steps to configure these computers.

3.3 Special Purpose Software

The following special purpose software is required. Please refer to the High-speed Electrical Test

Setup Instruction for steps to configure these computers.

• High-speed Electrical Test Tool Software – To be used in the High-speed Electrical Test Bed

Computer.

• Proprietary EHCI Driver Stack – The High-speed Electrical Test Tool software requires the use

of a proprietary EHCI driver stack. The use of this proprietary EHCI driver stack facilitates the

electrical testing that requires direct control of the command registers of the USB EHCI host

controllers. The end result is a much more robust test bed environment. Since the proprietary

EHCI driver stack is designed for debug and test validation, this driver stack does not support

the normal functionality as found in the EHCI drivers from Microsoft (or the device vendor). An

automatic driver stack switching function has been implemented into the High-speed Electrical

Test Tool for easy switching between the proprietary EHCI driver stack and that from Microsoft.

Upon invocation of the HS Electrical Test Tool software, the driver stack will automatically

switch to the Intel proprietary EHCI driver stack. Upon exit of the HS Electrical Test Tool

software, the driver stack will automatically switch to the Microsoft EHCI driver stack.

• TDSUSB2 Tektronix TDSUSB2 Compliance Test Application software

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Connect-Tek USB-16 User Manual Page 8