[SI-LIST] Re: USB 2.0 testing
- From: Tadashi Arai <arap@xxxxxxxxxxxxxx>
- To: "[SI-LIST]" <si-list@xxxxxxxxxxxxx>
- Date: Thu, 02 Oct 2003 09:26:25 +0900
Hi Kupper,
You may use an oscilloscope with an USB test option provided by
equipment vendors. I know Agilent, LeCroy, and Tektronix have them in
their showcase.
You could be better to visit www.usb.org to learn more about testing for
USB.
Regards,
On Mon, 29 Sep 2003 19:26:31 -0600
"Kupper, Ingo" <ingo.kupper@xxxxxxxxxxxxxx> wrote:
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> Hi,
> =20
> we use an ICH4 in our design and try to verify the transfer speed of
> 480Mbps for USB 2.0.=20
> I already used a USB 2.0 CD-writer (although, that wont even fully use
> 12Mbps for USB 1.1) and most recent, I tried the 10/100Mbps USB 2.0 to
> Ethernet adapter from Linksys. I both cases, I can clearly see the 80ns
> eye width for the USB 1.1 speed.
> How can I test and verify the eye diagram for USB 2.0 and what
> peripheral can I use for testing it?
> =20
> Any help appreciated !
> =20
> Thanks,
> =20
> Ingo
> =20
>
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> =3D Ingo Kupper =3D
> =3D Sr. Electronics Engineer =3D
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//// /// // / / / / / / / / / /
Tadashi Arai//Platform Design Dept.,Mobile Computing Div. Fujitsu Limited
arap@xxxxxxxxxxxxxx TEL:+81-42-370-7617 Ohmaru, Inagi-shi, Tokyo, Japan
/ / / / / / / / / / / // ////
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