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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

  • 0 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 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 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 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.