diff --git a/STM32/cores/arduino/stm32/SerialUSB.cpp b/STM32/cores/arduino/stm32/SerialUSB.cpp
index 65bb198..92c0cd0 100644
--- a/STM32/cores/arduino/stm32/SerialUSB.cpp
+++ b/STM32/cores/arduino/stm32/SerialUSB.cpp
@@ -29,6 +29,10 @@
 #include <SerialUSB.h>
 #include "variant.h"
 
+#include "USBDevice.h"
+
+USBD_HandleTypeDef hUsbDeviceFS;
+
 // Constructors ////////////////////////////////////////////////////////////////
 SerialUSBClass::SerialUSBClass(){
   // Make sure Rx ring buffer is initialized back to empty.
@@ -36,31 +40,8 @@ SerialUSBClass::SerialUSBClass(){
   //tx_buffer.iHead = tx_buffer.iTail = 0;
 }
 
-void SerialUSBClass::init(void){
-/* Re-enumerate the USB */
-  volatile unsigned int i;
-
-#ifdef USB_DISC_PIN
-  pinMode(USB_DISC_PIN, OUTPUT);
-  digitalWrite(USB_DISC_PIN, HIGH);
-	for(i=0;i<512;i++);
-  digitalWrite(USB_DISC_PIN, LOW);
-#else
-  //pinMode(USBDP_PIN, OUTPUT);
-  //digitalWrite(USBDP_PIN, LOW);
-	//for(i=0;i<512;i++);
-  //digitalWrite(USBDP_PIN, HIGH);
-
-  
-  pinMode(PA12, OUTPUT);
-  digitalWrite(PA12, LOW);
-  //HAL_Delay(1000);
-  for(i=0;i<512;i++){};
-  digitalWrite(PA12, HIGH);
-  //HAL_Delay(1000);
-  for(i=0;i<512;i++){};
-#endif
-  MX_USB_DEVICE_Init();
+void SerialUSBClass::init(void) {
+  USBDeviceFS.beginCDC();
 }
 
 
diff --git a/STM32/cores/arduino/usb/usb_device.c b/STM32/cores/arduino/usb/usb_device.c
index 2f3af2b..e8be65f 100644
--- a/STM32/cores/arduino/usb/usb_device.c
+++ b/STM32/cores/arduino/usb/usb_device.c
@@ -41,21 +41,8 @@
 #include "cdc/usbd_cdc_if.h"
 
 /* USB Device Core handle declaration */
-USBD_HandleTypeDef hUsbDeviceFS;
 
-/* init function */				        
-void MX_USB_DEVICE_Init(void)
-{
-  /* Init Device Library,Add Supported Class and Start the library*/
-  USBD_Init(&hUsbDeviceFS, &CDC_Desc, DEVICE_FS);
-
-  USBD_RegisterClass(&hUsbDeviceFS, &USBD_CDC);
-
-  USBD_CDC_RegisterInterface(&hUsbDeviceFS, &USBD_Interface_fops_FS);
-
-  USBD_Start(&hUsbDeviceFS);
-
-}
+/* init function */
 /**
   * @}
   */