key.h

数字功放DDX8001控制程序,包含LCD12864驱动,TWI驱动,旋转偏码驱动

#ifndef __KEY_H__
#define __KEY_H__

#include <avr/io.h>

#define uint8 unsigned char
#define uint16 unsigned int
#define SETBIT(x,y)   (x|=(1<<y))      //set bit y in byte x 
#define CLRBIT(x,y)   (x&=(~(1<<y)))   //clear bit y in byte xx 

#define SWA  (PINB&(1<<PB0))
#define SWB  (PINB&(1<<PB1))
#define SWA_state (PINB&0x01)
#define SWB_state (PINB&0x02)

uint8 SW_turn(void);


#endif