/**********************************************************************************************/
//	Bezeichner definieren
/**********************************************************************************************/

#pragma code

#define I_Temp  	LATAbits.LATA0 
#define U_Bat	  	LATAbits.LATA1
#define DCF_LED  	LATAbits.LATA2
#define DCF_Data  	LATAbits.LATA3
#define Piezo  		LATAbits.LATA4
#define DCF_PON		LATAbits.LATA5
#define GLCD_RES  	LATBbits.LATB0
#define GLCD_RS  	LATCbits.LATC2
#define GLCD_RW  	LATCbits.LATC7
#define GLCD_E  	LATCbits.LATC6
#define GLCD_Data  	LATD 
#define Backlight  	LATEbits.LATE1
#define O_Temp  	LATEbits.LATE2

#define Oben	  	LATEbits.LATE0		//(y+)
#define Unten  		LATBbits.LATB3 		//(y-)
#define Rechts 		LATBbits.LATB4 		//(x-)
#define Links  		LATBbits.LATB5		//(x+)

/**********************************************************************************************/
// 	Programme
/**********************************************************************************************/

void DCF77(void);
void Setup_ADC();
void BCD_Einer(void);
void BCD_Zehner(void);
void BCD_Hunderter(void);
void BCD_Tausender(void);
void CheckTime(void);
void DCF_Bits(void);
void low_isr( void );
void Position(void);
void high_isr( void );
void GLCD_Busy(void);
void GLCD_Clear(void);
void GLCD_Enable(void);
void CheckBattery(void);
void Alarm(unsigned char cycle);
void GLCD_write(unsigned char info);
void Read_ADC(unsigned char Channel);
void GLCD_writecom(unsigned char info);
void GLCD_writebyte(unsigned char info);
void GLCD_writedata(unsigned char info);
void GLCD_Setpixel(unsigned char x, unsigned char y);
void GLCD_SetAdress(unsigned char x, unsigned char y);
void GLCD_Line (unsigned char x1, unsigned char y1, unsigned char x2, unsigned char y2);

/**********************************************************************************************/
// 	Initialisiert das Grafik LCD (Grafik Mode)
/**********************************************************************************************/

void GLCD_Init_G(void)
{
	GLCD_RES=0;
	Delay10KTCYx(1);
	GLCD_RES=1;

	GLCD_writecom(0x01);	// Character Pitch
	GLCD_writedata(0x77);	// Chars	

	GLCD_writecom(0x02);	// Number of Characters
	GLCD_writedata(19);		// 20-1 (0-19)

	GLCD_writecom(0x08);	// Start Adresse Low
	GLCD_writedata(0x00);	// 0

	GLCD_writecom(0x09);	// Start Adresse High
	GLCD_writedata(0x00);	// 0

//	GLCD_writecom(0x0A);	// Start Adresse Low
//	GLCD_writedata(0x00);	// 0

//	GLCD_writecom(0x0B);	// Start Adresse High
//	GLCD_writedata(0x00);	// 0

	GLCD_writecom(0x03);	// Set Duty
	GLCD_writedata(79);		// 80-1 (0-79)

	GLCD_writecom(0x00);	// Mode Con
	GLCD_writedata(0x32);	// Grafik Mode

	GLCD_Clear();			// GLCD Inhalt löschen
}

/**********************************************************************************************/
// 	Initialisiert das Grafik LCD (Charakter Mode)
/**********************************************************************************************/

void GLCD_Init_C(void)
{
	GLCD_RES=0;
	Delay10KTCYx(1);
	GLCD_RES=1;

	GLCD_writecom(0x00);	// Mode Con
	GLCD_writedata(0x30);	// Character Mode, Cursor off
	
	GLCD_writecom(0x01);	// Character Pitch
	GLCD_writedata(0x77);	// 8x8 Chars	

	GLCD_writecom(0x02);	// Number of Characters
	GLCD_writedata(19);		// 20-1 (0-19)

	GLCD_writecom(0x03);	// Set Duty
	GLCD_writedata(79);		// 80-1 (0-79)

	GLCD_writecom(0x04);	// Cursor Position
	GLCD_writedata(0x07);	// Line 1

	GLCD_writecom(0x08);	// Start Adresse Low
	GLCD_writedata(0x00);	// 0

	GLCD_writecom(0x09);	// Start Adresse High
	GLCD_writedata(0x00);	// 0

	GLCD_writecom(0x0A);	// Cursor lower adress
	GLCD_writedata(0x00);	// 0

	GLCD_writecom(0x0B);	// Cursor upper adress
	GLCD_writedata(0x00);	// 0

	GLCD_Clear();			// GLCD Inhalt löschen
}

/**********************************************************************************************/
// 	Setzt die entsprechenden Bits zum Senden von Daten
/**********************************************************************************************/

void GLCD_writedata(unsigned char info)
{
	GLCD_RS=0;
	GLCD_write(info);
}

/**********************************************************************************************/
// 	Setzt die entsprechenden Bits zum Senden eines Befehls
/**********************************************************************************************/

void GLCD_writecom(unsigned char info)
{
	GLCD_Busy();
	GLCD_RS=1;
	GLCD_write(info);
}

/**********************************************************************************************/
// 	Überträgt Daten/Befehle an das Grafik LCD
/**********************************************************************************************/

void GLCD_write(unsigned char info)
{
	GLCD_RW=0;
	GLCD_Data=info;
	Delay10TCYx(1);
	GLCD_Enable();		
}

/**********************************************************************************************/
// 	Kontrolliert ob das Display fertig ist
/**********************************************************************************************/

void GLCD_Busy(void)
{	
//	GLCD_RW=1;
//	GLCD_RS=1;
//	GLCD_Enable();
//	TRISD=0x80;	
//	while(LATDbits.LATD7){}	
//	TRISD=0x00; 

	Delay10TCYx(1);
}

/**********************************************************************************************/
// 	Setzt die Enable Leitung auf: High|Pause|Low
/**********************************************************************************************/

void GLCD_Enable(void)
{
	GLCD_E=1;
	Delay10TCYx(1);
	GLCD_E=0;
}

/**********************************************************************************************/
// 	Löscht den gesamten Inhalt des Displays
/**********************************************************************************************/

void GLCD_Clear(void)
{
	unsigned int i;
	GLCD_SetAdress(0,0);
	for (i=0; i<160/8*80; i++)
	GLCD_writebyte(0);	
}

/**********************************************************************************************/
// 	Stellt "die" Adresse ein
/**********************************************************************************************/

void GLCD_SetAdress(unsigned char x, unsigned char y)
{
	unsigned int adress;
	adress=y*20+x;
	GLCD_writecom(0x0A);				// write adress low
	GLCD_writedata(adress&255);
	GLCD_writecom(0x0B);				// write adress high
	GLCD_writedata(adress/256);		
}

/**********************************************************************************************/
//	Auf das Display schreiben
/**********************************************************************************************/

void GLCD_writebyte(unsigned char info)
{
	GLCD_writecom(0x0C);
	GLCD_writedata(info);
}

/**********************************************************************************************/
//	GLCD Set Pixel
/**********************************************************************************************/

void GLCD_Setpixel(unsigned char x, unsigned char y)
{	
	if ((x>=160)||(y>=80))
	{
		return;
	}
		GLCD_SetAdress(x/8,y);
		GLCD_writecom(0x0F);
		GLCD_writedata(x&7);
}

/**********************************************************************************************/
//	GLCD Line
/**********************************************************************************************/

void GLCD_Line (unsigned char x1, unsigned char y1, unsigned char x2, unsigned char y2)
{   unsigned char temp;
	if (y1==y2)
	{	if (x1>x2)
		{	temp=x1;
			x1=x2;
			x2=temp;
		}
		for (temp=x1; temp<=x2; temp++)
			GLCD_Setpixel (temp,y1);

	}
	else if (x1==x2)
	{	if (y1>y2)
		{	temp=y1;
			y1=y2;
			y2=temp;
		}
		for (temp=y1; temp<=y2; temp++)
			GLCD_Setpixel (x1,temp);
	}
}