-#ifndef TIMER_PRESCALER
-# if F_CPU > 16000000
-# define TIMER_PRESCALER 256
-# elif F_CPU > 2000000
-# define TIMER_PRESCALER 64
-# elif F_CPU > 250000
-# define TIMER_PRESCALER 8
-# else
-# define TIMER_PRESCALER 1
-# endif
-#endif
-#define TIMER_RAW_FREQ (F_CPU/TIMER_PRESCALER)
-#define TIMER_RAW TCNT0
-#define TIMER_RAW_TOP (TIMER_RAW_FREQ/1000)
-
-#if (TIMER_RAW_TOP > 255)
-# error "Timer0 can't count 1ms at this clock freq. Use larger prescaler."
-#endif
-