AVR Freaks

Hey.

I created a program in which I would have a blinking led (500ms on / 500ms off) + a led controlled via pwm (brightness wise) + a 1Hz square wave output.

I built the code multiple times and I haven't spotted an error yet (I might be doing something wrong, though).

At the moment, I'm following a lot of tutorials on how to program my micro using AVRDude / USBAsp. I'm using multiple computers (with multiple OS's - Win7 and Win10) but none of them seem to work. My guess is: either the drivers are wrongly installed or everything's right exept the code. When I run the program on AVRDudes, my breadboard's leds stay off and nothing really seems to change.

Any help given that my work is due on Sunday?

#include <avr/interrupt.h>
#include <stdio.h>
#include <avr/io.h>
#define LED 1

volatile unsigned char count = 2;								// Counter
volatile unsigned char led ;									// Verifies if LED is turned ON or OFF

void inic(void) {
	
	PORTD = 0b00001001;											// Defined PD0 / PD3 as outputs. PD0: Blinking LED ; PD3: LED (pwm) [OC2B].
	DDRD = 0b00001001;

	TCCR0A = (1<<WGM01);										// COM0Ax: Normal port operation ; COM0Bx: Normal port operation ; Bits 3&2: Reserved and read as zero ; CTC mode (T = [Prescaler/Clock] * (OCR0 + 1)
	TCCR0B = (1<<CS02)|(1<<CS00);								// FOC0x: Read as zero ; Bits 5&4: Reserved and read as zero ; Prescaler = 1024 & Clock = 1Mhz
	TIMSK0 = (1<<OCIE0A);										// Timer/Counter0 Compare Match A interrupt enabled
	OCR0A = 243;												// 0,245 = [1024/1MHz] * (OCR0 + 1) <=> OCR0 = 243 (0,249 ms)

	TCCR2A = (1<<COM2B1) | (1<<WGM21) | (1<<WGM20);				// COM2Ax: Normal port operation ; COM2Bx: Clear OC2B on Compare Match & Set OC2B at Bottom ; Bits 3&2: Reserved and read as zero ; Fast PWM
	TCCR2B = (1<<CS21)|(1<<CS20);								// FOC2x: Read as zero ; Bits 5&4; Reserved and read as zero ; Prescaler = 32 & Clock = 1Mhz
	OCR2B = 0;

	ADMUX =  (1<<REFS0)|(1<<ADLAR)|(1<<MUX2)|(1<<MUX0);			// External capacitor on AREF pin (potentiometer) ; ADLAR adjusted to the left: Bit = 1 ; Bit 4 ; Reserved and read as zero ; PC5 (ADC5) defined as input
	ADCSRA = (1<<ADEN)|(1<<ADIE)|(1<<ADPS1)|(1<<ADPS2);			// ADEN enabled: Bit = 1 ; ADSC set when converting ; ADATE: Disabled auto triggering of the ADC ; ADIF: Set when conversion completes ; Prescaler = 8

	sei();														// global int enable
}

ISR(ADC_vect) {													// ADC interruption
	
	OCR2B = ADCH;												// Transfers the value of the potentiometer to the led on PD3
	ADCSRA |= (1<<ADSC);										// Starts the conversion
}

ISR(TIMER0_COMPA_vect) {										// Led blink interruption
	
	count--;													// Counts 250ms
	led = (PORTD & LED);										// Blinking LED
	
	if (count==0 && led==0) {									// Count = 2 by default. 250ms * 2 = 500ms. Half a second on, Half a second off. Comes here if led is turned off
		PORTD |= LED;											// LED ON
		count = 2;												// Reset counter
	}

	if (count==0 && led==1) {									// Comes here if led is turned on
		PORTD &= ~LED;											// LED OFF
		count = 2;												// Resets counter
	}
}

int main (void) {
	inic();														// Calls the inic function
	
	ADCSRA |= (1<<ADSC);										// Starts the ADC conversion

	while(1){
	}
}