//Impulsgeber Lib

#define ROT_PORT	PORTC
#define ROT_DDR		DDRC
#define ROT_PIN		PINC
#define ROT_A		PC2
#define ROT_B		PC1
#define ROT_T		PC0


void rot_init(void);
signed char rot_getdelta(void);
void rot_IRQ(void);