uint8_t LEDnummer = 0;
int LEDwert[4];			//Binärwert der jeweiligen LED


int PWMstatus[4];		// aktueller Modulationsgrad der LED


uint8_t PWMtime = 0;
uint8_t PWMlevel = 0;

uint8_t LEDon = 15;
uint8_t LEDoff[3];


uint8_t LEDoff25 = 0;
uint8_t LEDoff50 = 0;
uint8_t LEDoff75 = 0;

uint16_t ADC_Taste = 1023;

uint8_t status = 0;

uint8_t Tasterdelay = 0;



int main(void)
{
	LEDwert[0] = 1;
	LEDwert[1] = 2;
	LEDwert[2] = 4;
	LEDwert[3] = 8;
	
	PWMstatus[0] = 4;
	PWMstatus[1] = 4;
	PWMstatus[2] = 4;
	PWMstatus[3] = 4;
	
	LEDoff[0] = 0;		// LEDs bei Tastgrad 25% ausschalten
	LEDoff[1] = 0;		// LEDs bei Tastgrad 50% ausschalten
	LEDoff[2] = 0;		// LEDs bei Tastgrad 75% ausschalten
	
	initRP6Control();
	initLCD();
	
	startStopwatch1();
	
    /* Replace with your application code */
    while (1) 
    {	
		
		while (PWMtime <20)
		{
			switch (PWMlevel)
			{
			case 0: if(PWMtime >2){
					
						LEDoff25 = LEDon & (~(LEDoff[0]));
						setLEDs(LEDoff25);
						PWMlevel++;
							
					}
				break;
			
			case 1:if(PWMtime >4){
				
						LEDoff50 = LEDoff25 & (~(LEDoff[1]));
						setLEDs(LEDoff50);
						PWMlevel++;
				
					}
				break;
			case 2:if(PWMtime >8){
				
						LEDoff75 = LEDoff50 & (~(LEDoff[2]));
						setLEDs(LEDoff75);
						PWMlevel++;
				
					}
				break;	
			}
			PWMtime = getStopwatch1();
		}
		
		PWMlevel = 0;
		PWMtime = 0;
		setLEDs(LEDon);
		
		setStopwatch1(0);
		
		if (Tasterdelay < 10)
		{
			Tasterdelay++;
		}
		else{
		ADC_Taste = readADC(ADC_KEYPAD);
		
		if(ADC_Taste < 200)				// Taste 1 LED wählen
		{
			if(LEDnummer == 0){LEDnummer = 3;}
			else{LEDnummer-- ;}
		}
		
		else if(ADC_Taste <600)				// Taste 2 LED heller
		{
			switch (PWMstatus[LEDnummer])
			{
			case 1:
			case 2: 
					status = PWMstatus[LEDnummer] -1;
					LEDoff[status] = LEDoff[status] & (~(LEDwert[LEDnummer]));
					
					status = status + 1;
					
					LEDoff[status] = LEDoff[status] | LEDwert[LEDnummer];
					
					PWMstatus[LEDnummer]= status + 1;
					
				break;
				
			case 0:
					LEDoff[0] = LEDoff[0] | LEDwert[LEDnummer];
					LEDon = LEDon | LEDwert[LEDnummer];
					PWMstatus[LEDnummer] = 1;
				break;
			
			case 3:
					LEDoff[2] = LEDoff[2] & (~(LEDwert[LEDnummer]));
					PWMstatus[LEDnummer] = 4;	
				
			}
		}
		
		else if(ADC_Taste < 720)		// Taste 3 LED dunkler
		{
			switch (PWMstatus[LEDnummer])
			{
				case 1:
						LEDoff[0] = LEDoff[0] & (~(LEDwert[LEDnummer]));
						LEDon = LEDon & (~(LEDwert[LEDnummer]));
						PWMstatus[LEDnummer] = 0;						
					break;
					
				case 2:
				case 3:
						status = PWMstatus[LEDnummer] -1;
						LEDoff[status] = LEDoff[status] & (~(LEDwert[LEDnummer]));
						status = status - 1;
						LEDoff[status] = LEDoff[status] | LEDwert[LEDnummer];
						PWMstatus[LEDnummer]= status + 1;
					break;
				
				case 4:
						LEDoff[2] = LEDoff[2] | LEDwert[LEDnummer];
						PWMstatus[LEDnummer] = 3;
					break;
					
			}
		}
		
		// LCD_Ausgabe
		
		clearLCD();
		setCursorPosLCD(0,0);
		writeCharLCD('L');
		writeCharLCD('E');
		writeCharLCD('D');
		writeCharLCD(' ');
		writeIntegerLCD(4-LEDnummer, DEC);
		setCursorPosLCD(1,0);
		writeCharLCD('P');
		writeCharLCD('W');
		writeCharLCD('M');
		writeCharLCD(' ');
		int PWMausgabe = PWMstatus[LEDnummer]*25;
		writeIntegerLCD(PWMausgabe ,DEC);
		writeCharLCD('%');
		
		Tasterdelay = 0;
			}
		
		
		
    }
}