when i use USB High speed to achieve Communication Device Class（VCP USB-to-RS232 bridge to realize a virtual COM port），If not set USBHS Interrupt highest priority Communicate with the computer for a period of time the program enter hardFault。
when i use USB High speed to achieve Communication Device Class（VCP USB-to-RS232 bridge to realize a virtual COM port），If not set USBHS Interrupt highest priority Communicate with the computer for a period of time the program enter hardFault。
