cpu.c

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		// Hans
		if (cDelayCounter > 0)
			cDelayCounter--;
	}

}

void	PowerDown( void )
{
//	LCDPowerOFF();
//	PowerLED(OFF);
//	WriteTW88(TW88_OSDLOCKUPSEL, (ReadTW88(TW88_OSDLOCKUPSEL)|0x10));	// OSD All Off (TW8806B)
	WriteTW88( MCU_STOP_MODE, (ReadTW88(MCU_STOP_MODE) | 0x80) );	// set bit7 to 1
	PCON = PCON | 2;	// enter stop mode
}

/*****************************************************************************/
/*      Ext Int 3_n Interrupt : implements interrup service                  */
/*****************************************************************************/
WORD	TW88IRQ = 0;

//INTERRUPT(9, ext3_int)
void ext3_int(void) interrupt 9 using 1
{
BYTE	page;

	EXIF = EXIF & 0xDF;		// clear interrupt 3;
	page = ReadTW88(0xff);
	WriteTW88(REG_PAGE, 0);
	TW88IRQ = ReadTW88( STATUS0 );
	TW88IRQ <<= 8;
	TW88IRQ += ReadTW88( STATUS1 );
	WriteTW88( STATUS0, 0xff );		// clear change bits
	WriteTW88( STATUS1, 0xff );		// clear change bits
	WriteTW88(REG_PAGE, page);
	//EIE &= 0xFD;			// disable interrupts
}

/*****************************************************************************/
/*      Ext Int 5_n Interrupt : Power Down sequence                          */
/*****************************************************************************/

//INTERRUPT(11, ext5_int)
void ext5_int(void) interrupt 11 using 1
{
WORD	i;
	EXIF = EXIF & 0x7F;		// clear interrupt 5;
//	EA = 0;				// disable all interrupts
//	EX5 = 0;

//	P2 = 0xf0;
	for ( i=0; i<0xFF0; i++ ) ;		// wait for some time...
	if ( POWER_DOWN == 1 ) {
		PowerDown();
		//PCON = PCON | 2;	// enter stop mode
    }
	else {
//		EA = 1;
	}
}

//------------------------------------------------------------------
// void	InitVars(void) - variable initialize
//------------------------------------------------------------------
void	InitVars(void)
{
	SystemClock=0;			//00:00
	LastBlockedTime=0xffffffff;		//00:00	//ljy010904...CC_FIX_CLEAR_ON_TIME..oops! previous vchip clear error 
	OffTime=0xffff;
	SleepTimer=0;
	SleepTime=0xffff;

	DebugLevel		= 0;
	RemoDataReady	= 0;
}

//------------------------------------------------------------------
// void	InitTechwell(void) - Techwell Decoder initialize
//------------------------------------------------------------------
void	InitTechwell( void )
{
	#ifdef NO_INITIALIZE
	if( ReadKey()==MENUKEY ) {// No Initialize
		NoInitAccess =1;
		Printf("\r\n No-initialize Test going on with MENU KEY pressed ..: %d\n", (WORD)P0_3);
		return;
	}
	#endif
	LCDPowerOFF();
       InitCCFL(); // Hans
       ConfigPanel(); // Hans
       ConfigTCON(); // Hans   
	Puts("\r\n\nDetect ");

	switch( ReadTW88(0) ) {
		case 0x21:	Puts("TW8816");		break;
		case 0x49:	Puts("TW8817");		break;
		default:	Printf("Nothing --0x%02x\r\n", (WORD)ReadDecoder(0)); 
			while(1) {
				#ifdef SERIAL
				if( RS_ready() ) break;
				#endif
				Printf("Check again --0x%02x\r\n", (WORD)ReadDecoder(0));
				delay(99);
				if( ReadTW88(0)==0 ) continue;
				if( ReadTW88(0)==0xff ) continue;
				break;
			}
			delay(99);
			delay(99);
			Printf("Last Check --0x%02x\r\n", (WORD)ReadDecoder(0));
		break;
	}

	#ifdef ADD_ANALOGPANEL
	if(IsAnalogOn())
		Printf("%s \n", AddedAnalogPanelStr);
	else
	#endif	
		Printf("%s \n", PanelInfoStr);

	CheckSpecialMode();
	DebugLevel = 0xff;
	main_init();

}
//=============================================================================
//                            Power LED ON / OFF                                                   
//=============================================================================
void PowerLED(BYTE flag)
{
#define GREEN_LED	P1_7
#define RED_LED		P1_6

	if( flag==ON ) {
		RED_LED = 0;		// ON RED 
		GREEN_LED = 0;		// ON GREEN
		dPuts("\r\n(PowerLED)-ON");
	}
	else {
		RED_LED = 0;		// ON RED
		GREEN_LED = 1;		// OFF GREEN
		dPuts("\r\n(PowerLED)-OFF");
	}
}
#else
//=============================================================================
//                            Initialize WINBOND CPU                                                   
//=============================================================================
void InitCPU(void)
{

	CHPENR = 0x87;		// Enable AUX RAM in Winbond(W78E516B)
	CHPENR = 0x59;		//
	CHPCON = 0x10;		//
	CHPENR = 0x00;		// Write Disable

	/*----- Initialize interrupt -------------*/

	TH1 = 0xff; 		//    SMOD = 0      SMOD =1						
						// 0ffh :57600 bps				
						// 0fdh : 9600 bps	0fdh :19200 bps				
						// 0fah : 4800 bps								
						// 0f4h : 2400 bps								
						// 0e8h : 1200 bps								

	SCON = 0x50;		// 0100 0000 mode 1 - 8 bit UART				
						// Enable serial reception						
    	TMOD = 0x22;		// 0010 0010 timer 0 - 8 bit auto reload		
						// timer 1 - baud rate generator				
    	TCON = 0x55;		// 0101 0001 timer 0,1 run						
						// int 0,  edge triggered						
						// int 1,  edge triggered						
						// TF1 TR1 TF0 TR0	EI1 IT1 EI0 IT0				
	TH0 = TL0 = 64;		// 64=4608 Hz at 11.0592MHz

	PCON = 0x80;		// 0000 0000 SMOD(double baud rate bit) = 1		
	IP	 = 0x02;		// 0000 0000 interrupt priority					
						// -  - PT2 PS PT1 PX1 PT0 PX0	 		         

	#ifdef SERIAL
	IE	 = 0x92;		// 1001 0010 interrupt enable:Serial,TM0		
  						// EA - ET2 ES ET1 EX1 ET0 EX0					

	TI	 = 1;			// LJY000724 // For Starting Serial TX 
	ES   = 1;			// LJY000724
	#else
	IE   = 0x82;
	#endif // SERIAL

	//------------ Timer 2 for Remocon --------------------------------
	T2CON  = 0x00;				// Timer2 Clear
	TR2	   = 0;
	ET2    = 1;
	//-----------------------------------------------------------------
	P4=0x0f;

}

#define _ReadKey()		( ((~P4>>2)& 0x01) | (~P1 & 0xfc) )

////////////////////////////////

//INTERRUPT(1, timer0_int)
void timer0_int(void) interrupt 1 using 1			// interrupt number1, bank register 2
{
	tm001++;
	
	//---------- 0.01 sec timer ------------
	
	#ifdef CLOCK_11M
	if( tm001 > 48 ) {			// LJY001220 0.01sec
	#elif defined CLOCK_22M
	if( tm001 > 48*2 ) {		// LJY001220 0.01sec
	#endif

		tm001 = 0;
		tic01++;
		
		if( tic01==100 ) {				// 1 sec
			SystemClock++;
			tic01 = 0;
		}
		if( tic_pc!=0xffff ) 
			tic_pc++;

	///////////////////////////////////////////	
	if( _ReadKey() ) {
		if( keytic==3 ) {
			Key = _ReadKey();
			RepeatKey = 0;
			KeyReady = 1;
		}
		else if( keytic==100 ) {
			Key = _ReadKey();
			RepeatKey = 1;
			KeyReady = 1;
			keytic = 80;
		}
		keytic++;
	}
	else 
		keytic = 0;
	///////////////////////////////////////////	

		// Hans
		if (cDelayCounter > 0)
			cDelayCounter--;
	}
}
//------------------------------------------------------------------
// void	InitVars(void) - variable initialize
//------------------------------------------------------------------
void	InitVars(void)
{
	SystemClock=0;			//00:00
	LastBlockedTime=0xffffffff;		//00:00	//ljy010904...CC_FIX_CLEAR_ON_TIME..oops! previous vchip clear error 
	OffTime=0xffff;
	SleepTimer=0;
	SleepTime=0xffff;

	SEL_DVI=  1;		// disable Digital VGA
	// ResetKey();

	DebugLevel		= 0;
	RemoDataReady	= 0;

	P0_7 = 1;
	delay(100);
	PowerDown_XTAL(0);
	
	TW88HWReset = 1;	delay(1);
}

//------------------------------------------------------------------
// void	InitTechwell(void) - Techwell Decoder initialize
//------------------------------------------------------------------
void	InitTechwell( void )
{

	#ifdef NO_INITIALIZE
	if( P0_3==0 ) {// No Initialize
		NoInitAccess =1;
		Printf("\r\n No-initialize Test going on with DIP SW4 ..: %d\n", (WORD)P0_3);
		return;
	}
	#endif

	LCDPowerOFF();
       InitCCFL(); // Hans
       ConfigPanel(); // Hans
       ConfigTCON(); // Hans   
	Puts("\r\n\nDetect ");
	
	switch( ReadTW88(0) ) {
		case 0x21:	Puts("TW8816");		break;
		case 0x49:	Puts("TW8817");		break;
		default:	Printf("Nothing --0x%02x\r\n", (WORD)ReadDecoder(0)); 
			while(1) {
				#ifdef SERIAL
				if( RS_ready() ) break;
				#endif

				Printf("Check again --0x%02x\r\n", (WORD)ReadDecoder(0));
				delay(99);
				if( ReadTW88(0)==0 ) continue;
				if( ReadTW88(0)==0xff ) continue;
				break;
			}

			delay(99);
			delay(99);
			Printf("Last Check --0x%02x\r\n", (WORD)ReadDecoder(0));
		break;
	}

	#ifdef ADD_ANALOGPANEL
	if(IsAnalogOn())
		Printf("%s \n", AddedAnalogPanelStr);
	else
	#endif	
		Printf("%s \n", PanelInfoStr);
	CheckSpecialMode();
	main_init();

}
//=============================================================================
//                            Power LED ON / OFF                                                   
//=============================================================================
void PowerLED(BYTE flag)
{
#define	GREEN_LED	P0_4
#define RED_LED		P0_5

	if( flag==ON ) {
		GREEN_LED = 0;		// ON GREEN
		RED_LED = 0;		// ON RED
		dPuts("\r\n(PowerLED)-ON");
	}
	else {
		GREEN_LED = 1;		// OFF FREEN
		RED_LED = 0;		// ON RED
		dPuts("\r\n(PowerLED)-OFF");
	}
}
#endif

//------------------------ common routines with interrupts --------------------

/*****************************************************************************/
/*      Ext Int 1 Interrupt                                                  */
/*****************************************************************************/
//INTERRUPT(2, ext1_int)
void	ext1_int(void) interrupt 2 using 1
{
	EX1 = 0;
}

//****************************************************************************/
//      Timer 0 Interrupt                                                  
//			If TL0 overflow,
//			 .Invoke this interrupt
//			 .TL0 <- TH0
//			TL0 is incremented every machine cycle
//			Every machine cycle is 12*Tosc(11.0592MHz)
//
//			Every machine cycle = 1.085us
//			Interrupt interval = 208us ( 1.085*(256-64(TH0)) )
//			When tm001==48, it's 0.01sec.  48*208us
//							
//****************************************************************************/

#ifndef INTERNAL_MCU
#define _ReadKey()		( ((~P4>>2)& 0x01) | (~P1 & 0xfc) )
#endif

//=============================================================================
//			Remocon
//=============================================================================

#ifdef REMO_RC5

void InitForRemo(void)
{
	WORD temp;

	#if defined CLOCK_11M

	#ifdef TECHWELL_REMOCON // DONGYANG
	temp = 0x10000 - 193;	// 209.62us = 1.085*193
	#else
	temp = 0x10000 - 204;	// 221.34us = 1.085*204
	#endif
	
	#elif defined CLOCK_22M

	#ifdef TECHWELL_REMOCON // DONGYANG
	temp = 0x10000 - 193*2;	// 209.62us = 1.085/2*193*2
	#else
	temp = 0x10000 - 204*2;	// 221.34us = 1.085/2*204*2
	#endif
123

cpu.c - 源码说明

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