#include <stdlib.h>
#include <libopencm3/stm32/rcc.h>
#include <libopencm3/stm32/gpio.h>
#include <libopencm3/stm32/usart.h>
#include <libopencm3/stm32/usb.h>
#include <libopencm3/stm32/exti.h>
#include <libopencm3/stm32/adc.h>
#include <libopencm3/cm3/systick.h>
#include <libopencm3/cm3/nvic.h>
#include <libopencm3/cm3/cortex.h>
#include <libopencm3/cm3/scb.h>
#include <libopencm3/cm3/dwt.h>

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

#include "ring.h"
#include "pins.h"
#include "1wire.h"


#define US (72)
#define MS (US  * 1000)
#define HZ (MS * 1000)

#define MS_TO_TICKS(a) ((a) *2)


#include "prototypes.h"