How to produce pattern of USB 2.0 Host High speed for signal quality test?

[jeremysung]

Hi NXP,

I followed page 53 and 54 of I.MX6/7 Series USB Certification Guide Rev. 1,02/2017 to do USB2.0 Host High-speed Signal Quality Test.

However, there is no pattern produced from USB host.

Please help to confirmed it.

Some information as below:

MCU: I.MX6SL

test port: USB2.0(Host)

Equipment:

oscilloscope:DSA91304A

USB test app: N5416A

differential probe: 1169A

test fixture: E2649-26402 Rev 005.

USB 2.0 HOST test fixture connection:

EHCI HS test tool:

no pattern trigger detect:

Thank you!

Best Regards,

Jeremy

[art]

In addition, please refer to the following Community thread:

Patch to make i.MX6DQ USB to support test modes for certification test 

Have a great day,
Artur

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[BiyongSUN]

please  refer to the

http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/i.mx-applications-process...

AN4589: Configuring USB on i.MX 6 Series Processors (REV 1)