diff --git a/Power_Pico/USB_DEVICE/App/usb_device.c b/Power_Pico/USB_DEVICE/App/usb_device.c
index 71d8870..a677a63 100644
--- a/Power_Pico/USB_DEVICE/App/usb_device.c
+++ b/Power_Pico/USB_DEVICE/App/usb_device.c
@@ -48,6 +48,12 @@ USBD_HandleTypeDef hUsbDeviceFS;
  */
 /* USER CODE BEGIN 0 */
 
+void USER_USB_DEVICE_DeInit(void)
+{
+  USBD_Stop(&hUsbDeviceFS);
+  USBD_DeInit(&hUsbDeviceFS);
+}
+
 /* USER CODE END 0 */
 
 /*
diff --git a/Power_Pico/USB_DEVICE/App/usb_device.h b/Power_Pico/USB_DEVICE/App/usb_device.h
index 6033c76..503bd49 100644
--- a/Power_Pico/USB_DEVICE/App/usb_device.h
+++ b/Power_Pico/USB_DEVICE/App/usb_device.h
@@ -82,6 +82,8 @@ void MX_USB_DEVICE_Init(void);
  */
 /* USER CODE BEGIN FD */
 
+void USER_USB_DEVICE_DeInit(void);
+
 /* USER CODE END FD */
 /**
   * @}