//file name : cpu.h

#ifndef _CPU_H
#define _CPU_H

//來自網絡：位段方式
//定義新的數據類型，方便進行IO端口操作。
typedef struct
 {
    unsigned char bit0:1 ;
    unsigned char bit1:1 ;
    unsigned char bit2:1 ;
    unsigned char bit3:1 ;
    unsigned char bit4:1 ;
    unsigned char bit5:1 ;
    unsigned char bit6:1 ;
    unsigned char bit7:1 ;
}bit_field;

#define GET_BIT(adr) (*(( volatile bit_field * )(&adr)))

//是否起用自動io口初始化
#define AUTOINIT 1    
#if AUTOINIT==1
    #define PORT(m,n)   	GET_BIT(DDR ##m).bit##n=1;\
                        	GET_BIT(PORT##m).bit##n
#else
    #define PORT(m,n)    	GET_BIT(PORT##m).bit##n
#endif 
////////////////////////////////////////

#if AUTOINIT==1
    #define PIN(m,n)         (  !(u08)(GET_BIT(DDR ##m).bit##n=0)&&\
                                (u08)( GET_BIT(PORT##m).bit##n=1)&&\
                                       GET_BIT(PIN ##m).bit##n )
#else
    #define PIN(m,n)         GET_BIT(PIN##m).bit##n
#endif 

#define DRA(n)      GET_BIT(DDRA).bit##n  //方便直觀操作 自由設定單個io口的方向
#define DRB(n)      GET_BIT(DDRB).bit##n
#define DRC(n)      GET_BIT(DDRC).bit##n
#define DRD(n)      GET_BIT(DDRD).bit##n
#define DDR(m,n)    GET_BIT(DDR##m).bit##n

//定義avr 16bit數的little—endian風格的兩個宏

#define HIGHBYTE(UINT16)  ( ((unsigned char *)(&UINT16))[1]  )
#define LOWBYTE(UINT16)   ( ((unsigned char *)(&UINT16))[0]  ) 


/*  definition for timer0 */
#define T0_MIN_TICK  ((256*1000000)/F_CPU)//unit us
#define T0_TICK     1                     //unit ms - overflowtime

    #if     (T0_TICK*1000)<T0_MIN_TICK
	    #error  "error,please rechoose the F_CPU"
    #endif

#define TIMER0_BGN_VAL  (255-(T0_TICK*1000/T0_MIN_TICK))           //timer0 initial


#define T2_TICK_MIN		((256*1000000)/F_CPU)
#define T2_TICK			1000	//1ms
#define TIMER2_BGN_VAL 	 (255-T2_TICK/T2_TICK_MIN)

/********************全局變量******************/
	#ifndef _CPU_C
	  
		extern BOOL            	f_15ms  ;
		extern BOOL            	f_500ms ;
		extern BOOL            	f_1s    ;
		extern BOOL            	f_5s    ;
		extern BOOL            	f_60s   ;
		extern u08			   	SYS_ch;
		extern u08			  	AlrmStatusT ;
		extern u08			 	AlrmStatusH ;
	    extern uint8           	Humidity ;
		extern int16           	Temperature ;
		extern BOOL			    f_sensor_t ;	//溫度傳感器不存在
		extern BOOL			f_sensor_h ;
		extern u08			    RelayBreak ;
		extern u08			    SystemStatus;
		extern u08			    SystemMode;


	#endif

void  	TimerInit(void);
void timer0_start(void);
void timer0_stop (void);
#endif
/**********************  the end     ****************************/