What possible problems could exist if the VBUS pin is permanently connected to 5V?
I'm designing a circuit with a PIC32MZ and opto-isolated USB communication.
Only lines D + and D- are isolated so I plan to connect the VBUS pin of the MCU to 5V from an internal source of the circuit.
Necessarily the USB module must detect the 5 V on the host side? (Obviously I should use another optocoupler)
Any suggestions or comments are welcome.