#include <stdlib.h>
#include <libopencm3/stm32/rcc.h>
#include <libopencm3/stm32/gpio.h>
#include <libopencm3/stm32/usart.h>
#include <libopencm3/cm3/systick.h>
#include <libopencm3/cm3/nvic.h>
#include <libopencm3/usb/usbd.h>
#include <libopencm3/usb/hid.h>

#define INCLUDE_DFU_INTERFACE


#ifdef INCLUDE_DFU_INTERFACE
#include <libopencm3/cm3/scb.h>
#include <libopencm3/usb/dfu.h>
#endif

#include <stdio.h>
#include <errno.h>