#include <avr/io.h>
#include <stdint.h>

#include <main.h>

//initalize values
volatile uint8_t AdcChannel = 0;
volatile uint8_t AdcBuffer[3] = {0x00,0x00,0x00,0x00};

int main(void)
{		
	InitTimer16();	//PWM at PORTB7...5 for Buffer 0..2 -> is okay
	DDRC = 0xFF;	//für Buffer 3 -> is okay
	
	while(1)
	{    
		//ADC for Analog Input
		for (AdcChannel=0 ; AdcChannel<4 ; AdcChannel++)
		{
			AdcBuffer[AdcChannel]=AdcConv(AdcChannel);
		}
		
		//test
		OCR1AL = AdcBuffer[0]; 
		OCR1BL = AdcBuffer[1];
		OCR1CL = AdcBuffer[2];
		PORTC = AdcBuffer[3]; 
    }
	return(0);
}

--------------------------------------------------------------------------------

/*AdcConv*/

uint8_t AdcConv(uint8_t mux)
{
	ADMUX = mux;			//channel
	ADMUX |= (1<<ADLAR);		//left adjust result
	ADMUX |= (1<<REFS0);		//Vref to AVcc with capacitor
	ADCSRA = 0xC0;			//start conversion
	while(!(ADCSRA & (1<<ADIF))); 	//waiting for end of conversion
	ADCSRA &= ~(1<<ADEN);		//disable ADC	
	return(ADCH);			//return conversion
}

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#ifndef __MAIN_H
#define __MAIN_H

//Prototype				//initialize ADC
extern uint8_t AdcConv(uint8_t);	//set ch and start a conversation
extern void InitTimer16(void);		//Initialize Timer

//Variables
//Analog Inputs Channel 0...3
extern volatile uint8_t AdcChannel;	//counter for adc channels 
extern volatile uint8_t AdcBuffer[3];

#endif