#ifndef SYSTICK_H
#define SYSTICK_H

#include <stdint.h>

#define TIMER_DELAY 1000
#define SYSTICK_ONE_MILLISECOND \
  (uint32_t)(FUNCONF_SYSTEM_CORE_CLOCK / TIMER_DELAY)
#define millis() (systick_millis)

// ms counter incremented by SysTick
extern volatile uint32_t systick_millis;
void init_systick(void);

#endif  // SYSTICK_H