I was wondering if there is a way to force the USB1 peripheral in device mode to only use full-speed operation. I understand normally the host signals this, and the USB1 peripheral is capable of using full-speed or high-speed, but is there a way to force it to _only_ use full-speed even when the host is high-speed capable?
I noticed in the host controller peripheral, it has a field for setting the speed of USB1, but it doesn't work when the device controller is used.
I also understand there is a USB0 peripheral that is full-speed only, but is there a way to force the usb1 peripheral to be full-speed only too in device operation?
USB1 can only work in high speed. No way to force it work in full speed.
Have a nice day
Jun Zhang