mxic_ir.h

8051单片机的LCDTV用户界面程序

//------------------------------------------------------
// the MCU resource of MXIC IR receiver program take:
// 1. Interrupt
//		(1) ex_1 interrupt
//		(2) timer 1 interrupr
// 2. RAM 
//		global use
//		(1) 1 byte for status
//		(2) 4 bytes for ID flame buffer 
//		temperal use
//		(1) 2 bytes for check counter
//------------------------------------------------------

typedef unsigned char   BYTE;
bit EnableIr(void);
bit DisableIr(void);
bit CheckIrFlame(void);
BYTE GetIrCodeData(void);
BYTE GetIrIDData(void);
bit CheckIrRepeatCode(void);

//-----------------------------------

//#define		MINTEK

//#ifdef	MINTEK
//-----------------------------
#define		_OSC			92//(11059/120)  // 119      //(14318/120)

//mintek:0x3f00     ;  jaces:0x3edx;
#define		_LEAD			135 //*100us ->9ms+4.5ms
#define		_LEAD_LENGTH	(_LEAD*_OSC)      //0x3fxx
#define		_LEAD_UPPER		(_LEAD_LENGTH+800)
#define		_LEAD_LOWER		(_LEAD_LENGTH-800)


#define		_REPEAT			113 //*100us ->9ms+2.3ms
#define		_REPEAT_LENGTH	(_REPEAT*_OSC)      //0x3fxx
#define		_REPEAT_UPPER	(_REPEAT_LENGTH+400)
#define		_REPEAT_LOWER	(_REPEAT_LENGTH-400)

//logical "0": mintek cnt=0x530   //jaces: 0x521~0x505

#define		_IR_0			113 //*100us ->680us+448us  
#define		_IR_0_LEGTH		(_IR_0*_OSC/10)   //0x53x    
#define		_IR_0_UPPER		(_IR_0_LEGTH+600) //errate=0.838x100=83us
#define		_IR_0_LOWER		(_IR_0_LEGTH-600)
//*/


//mintek:0xa80  ;  jaces:0xa30
#define		_IR_1			225 //*100us ->680us+1600us  
#define		_IR_1_LEGTH		(_IR_1*_OSC/10)   //0xA80
#define		_IR_1_UPPER		(_IR_1_LEGTH+600)
#define		_IR_1_LOWER		(_IR_1_LEGTH-600)

//----------------------
//Variable for IR
//
//---------------------
//bit	IrOn=0;
static union MXIC_IR 
{
 	struct IR_STRUCT
	{
		BYTE	b1GetIrFlame		:1;		//get IR flame
		BYTE	b1GetIrRepeatCode  	:1;		//get IR repeat code
		BYTE	b1GetIrCommand	:1;		//get IR command
		BYTE	b5Reserved		  	:4;		//reserved
		BYTE	b1IrOn				:1;		//enable Ir receiver
	} Bits;
	BYTE	IrStatus;	
}MxicIr;


//#endif


//---------------------