AM572x USB3.0/2.0 Compliance support

Shareef

Expert 1985 points

Other Parts Discussed in Thread: AM5728

Hi,

On a design based on AM572x processor, does the USB subsystem provide support to enable test codes required for USB 2.0 (USB2 interface) and USB 3.0 (USB1 interface) compliance testing?

If so, can the details of enabling the USB test modes be shared with us?

Regards,

Shareef

over 9 years ago

0 Biser Gatchev-XID over 9 years ago

TI__Guru**** 393215 points

Hi,

see this wiki: processors.wiki.ti.com/.../Linux_Core_DWC3_User's_Guide

0 Shareef over 9 years ago in reply to Biser Gatchev-XID

Expert 1985 points

Hi Biser,

Can you please confirm on the following related to AM5728 USB controllers?

1. AM5728 USB 2.0 controllers support using the HSEHET test board that can be used to put the Host in compliance mode?
2. AM5728 USB 3.0 controllers support LFPS for electrical test and protocol compliance?

Regards,
Shareef

0 -DK- over 9 years ago in reply to Shareef

TI__Mastermind 27890 points

Hello Shareef,

1) No. AM57xx devices support DRD (Dual-Role Device) rather than Embedded or OTG Host functionality. The link provided by Biser contains the instructions for placing the device the USB2.0 test modes.

2) Yes.

0 Shareef over 9 years ago in reply to -DK-

Expert 1985 points

Hello DK,

Thanks for the response. I have further queries based on your response.

1) I believe that the USB 2.0 test modes specified in the DWC3 user guide link is sufficient to complete the USB 2.0 protocol compliance testing. And no additional software configuration is needed for the USB 2.0 compliance testing.

2) Similarly I understand that for USB 3.0 compliance testing no software configuration is needed, please confirm? Also how will the USB 3.0 host controller of AM5728 enter into the compliance mode.

Regards,

Shareef

0 -DK- over 9 years ago in reply to Shareef

TI__Mastermind 27890 points

1) Correct.

2) Also correct. USB3.0 compliance mode is entered and controlled by the remote link partner via the USB interface itself. Please refer to section 7 of the USB3.1 specification for more details.

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AM572x USB3.0/2.0 Compliance support