https://devzone.nordicsemi.com/f/nordic-q-a/57611/nrf52840-usb-msc-fat32Hi, I am working on one of my application using nRF52840 DK consisting of USB MSC and NUS. In USB MSC example, 8Mbytes of flash is used as mass storage with FAT (FAT12/16). I want to the nRF840 as mass storage with other system having FAT32 supporten-USTelligent Community 13Mon, 23 Mar 2020 15:13:44 GMThttps://devzone.nordicsemi.com/thread/241197?ContentTypeID=1Mon, 23 Mar 2020 15:13:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:622ace24-92aa-4db2-930b-d04b0a3ba2f2anusha<p>Hi Nikhil,</p> <p></p> <p>You can refer to the USB MSC example here:&nbsp;<a href="https://infocenter.nordicsemi.com/index.jsp?topic=%252Fcom.nordic.infocenter.sdk5.v15.1.0%252Fgroup__ble__sdk__lib__advdata.html&amp;anchor=ga81730d2df43fe79a3e3b27e79f8a3e9e">https://infocenter.nordicsemi.com/index.jsp?topic=%252Fcom.nordic.infocenter.sdk5.v15.1.0%252Fgroup__ble__sdk__lib__advdata.html&amp;anchor=ga81730d2df43fe79a3e3b27e79f8a3e9e</a></p> <p>In this example, you can make&nbsp;</p> <p><pre class="ui-code" data-mode="c_cpp">#define USE_SD_CARD 1 #define USE_FATFS_QSPI 0</pre></p> <p></p> <p>Also, you need to define fatfs_init() and other functions required to perform read and write operations. You can refer to Sd card example for definition of these functions:</p> <p><a href="https://infocenter.nordicsemi.com/index.jsp?topic=%252Fcom.nordic.infocenter.sdk5.v15.1.0%252Fgroup__ble__sdk__lib__advdata.html&amp;anchor=ga81730d2df43fe79a3e3b27e79f8a3e9e">https://infocenter.nordicsemi.com/index.jsp?topic=%252Fcom.nordic.infocenter.sdk5.v15.1.0%252Fgroup__ble__sdk__lib__advdata.html&amp;anchor=ga81730d2df43fe79a3e3b27e79f8a3e9e</a>&nbsp;</p><div style="clear:both;"></div>