Does i.MX6 FSL_USB_TEST_MODE support down stream of USB hub?

[satoshishimoda]

Hi community,

I have a question about i.MX6 Android BSP (jb4.2.2_1.0.0).

I tried USB test refer to https://community.freescale.com/docs/DOC-94460 with the following connection.

i.MX6D USB H1 --> USB Hub --> USB Device

In this case, USB Hub works fine, but USB Device did not work correctly.

Then, please see my question as below.

[Q]

Does the "FSL_USB_TEST_MODE" support down stream port of USB Hub as the above connectoin?

Best Regards,

Satoshi Shimoda

[satoshishimoda]

Can somebody reply me?

[igorpadykov · Accepted solution]

Answer No.

For USB test device should be connected to i.MX6 without hub.

[satoshishimoda]

Hi chipexpert,

Is there any alternative solution instead of using FSL_USB_TEST_MODE?

Actually, our end customer want to confirm a eye pattern by "Host HS Signal Quality Test" with Tektronix's oscilloscope and TDSUSBF Compliance Test Fixture.

Best Regards,

Satoshi Shimoda

[igorpadykov]

Hi Satoshi,

I think there are no alternative solutions.

Best regards

chip