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Original question:

SK-AM62: Processors forum

SK-AM62: can USB be used on r5 ?

Seyed M Safaei
Intellectual 540 points
Part Number: SK-AM62

I was wondering whether I could use USB drivers in the SBL that runs on R5. is this possible? Or does it need to run on a specific core (like a53) ?

I know that bare-metal USB is challenging but in this question, I want to understand if R5 can access and use USB-related functionalities (accessing related registers, related interrupts, and other minimal things that are needed to have a minimal USB stack).

Thanks.

  • 0
    TI__Guru**** 167581 points

    Hi Seyed,

    Yes, from the hardware perspective, R5 has full access to the USB module, this is how USB host and peripheral boot modes are supported in Linux (ROM -> R5 SPL -> A53 SPL -> A53 U-Boot -> A53 Linux).

    Though MCU+ SDK SBL doesn't have USB drivers.