/* PS/2 mouse */
-#define PS2_MOUSE_DEBUG
#ifdef PS2_USE_BUSYWAIT
# define PS2_CLOCK_PORT PORTD
# define PS2_CLOCK_PIN PIND
#endif
+/* PS/2 mouse interrupt version */
#ifdef PS2_USE_INT
/* uses INT1 for clock line(ATMega32U4) */
#define PS2_CLOCK_PORT PORTD
#endif
+/* PS/2 mouse USART version */
#ifdef PS2_USE_USART
#if defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)
/* XCK for clock line and RXD for data line */