1. ˵
    USB ʹڲ FLASH ģ U 

2. ʹû
    Ӳ̶ӦĿӲƽ̨ 
    壺    N32L43XM-STB N32L40XM-STB V1.1

3. ʹ˵
    ģ÷:ʱӣI/O 
         1. SystemClock48MHz
         2. USBClock: 48MHz

    DemoĲԲ 
         1. سλУ
         2. ͨ USB  J3 USB ڣUSB ɺʶ U 豸

4. ע
    ״ι U Ҫʽʽɺ󼴿ɵ U ʹ

1. Function description
    USB uses internal FLASH to simulate U disk

2. Use environment
    Hardware environment: development hardware platform corresponding to the project 
    Development board:      N32L43XM-STB N32L40XM-STB V1.1

3. Instructions for use
    Describe the configuration method of related modules; for example: clock, I/O, etc. 
        1. SystemClock: 48MHz
        2. USBClock: 48MHz
                  
    Describe the test steps and phenomena of Demo 
        1. After compiling, download the program to reset and run;
        2. Connect the J3 USB port through a USB cable, and after the USB is mounted, it will be recognized as a U disk device.
 
4. Matters needing attention
    The first mount U disk needs to be formatted, and it can be used as a U disk after formatting.