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#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <libopencm3/stm32/rcc.h>
#include <libopencm3/stm32/gpio.h>
#include <libopencm3/stm32/usart.h>
#include <libopencm3/stm32/dma.h>
#include <libopencm3/stm32/i2c.h>
#include <libopencm3/stm32/adc.h>
#include <libopencm3/stm32/exti.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 <errno.h>
#define TICK_BASE 9000
#define TICK_DIV 12000
#define TICKS_TO_US(a) (((a)*TICK_DIV*1000)/TICK_BASE)
#define MS_TO_TICKS(a) (((a)*1000)/TICKS_TO_US(1))
#include "pins.h"
#include "i2c.h"
#include "oled.h"
#include "ring.h"
#include "tacho.h"
#define US(a) (72*(a))
#define MS(a) (US(a) * 1000 )
#define HZ(a) (MS(a) * 1000)
#define T do { printf("%s:%s:%d\n",__FILE__,__FUNCTION__,__LINE__); } while (0)
#include "prototypes.h"
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