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USB3.0 Host port config for serial download

Question asked by Ritesh Patel on Dec 18, 2018
Latest reply on May 11, 2020 by Enoch Arthur
Branched to a new discussion



I am designing the board around iMX8M quad-core processor. The iMX8M has 2x USB modules: USB1 & USB2. The USB serial download mode is supported on USB1 module in device mode to flash the program in the internal boot memory device.

As per my product requirement, I want to use USB1 module as a USB3.0 Host port in the application and the same port for the serial download mode by configuring USB1 module as a USB2.0 device. 


Explained both use cases in the diagram below:



Is there any challenge/limitation in the above configurations?

Do let me know if any other information required.