44.5. USB MSC DUAL LUN

44.5.1. Overview

This example project shows USB MSC storage device

• PC shows two USB drives

• When the KEY button is pressed, LUN1 will be set to not ready to simulate medium not present (e.g. SD card removed)

44.5.2. Board Setting

• Connect a USB port on PC to the PWR DEBUG port on the development board with a USB Type-C cable

• Connect a USB port on PC to one of USB port on the development board with a USB Type-C cable

44.5.3. Running the example

When the project runs correctly

• After a USB cable plugged, you can see two virtual U disks on the PC device manager

• These two virtual U disks can be accessed and store files temporarily before the system powers off or restarts

• Press the KEY button, the LUN1 disk will be ejected (unavailable) to simulate medium removal. Press again to re-insert LUN1.