/*
.def tmp = r16

.cseg
	rjmp reset

reset:
	ldi tmp, high(RAMEND)
	out SPH, tmp
	ldi tmp, low(RAMEND)
	out SPL, tmp

	ldi tmp, (1 << PD5)
	out DDRD, tmp

	ldi tmp, (1 << COM1A0)
	out TCCR1A, tmp

	;ldi tmp, (1 << WGM12)
	;out TCCR1B, tmp

	; f_clk  = 7372800
	; f_oc1a = 2Hz
	;
	; f_oc1a = fclk /( 2 * N * (1 + OCR1A))
	;	N * (1 + OCR1A) = f_clk / (2 * f_oc1a)
	; 	N * (1 + OCR1A) = 7372800 / 4
	;   N * (1 + OCR1A) = 1843199
	;	1 * (1 + OCR1A) = 1843199     => OCR1A = 1843199
	;	8 * (1 + OCR1A) = 1843199     => OCR1A =  230399
	;	64 * (1 + OCR1A) = 1843199    => OCR1A =   28799 (OK)

	ldi tmp, (1 << WGM12) | (1 << CS11) | (1 << CS10)
	out TCCR1B, tmp

	ldi tmp, high(28799)
	out OCR1AH, tmp
	ldi tmp, low(28799)
	out OCR1AL, tmp

	; (28799 + 1 ) * 64 = 1843200
	; 1 / ( 7372800 / 1843200 ) = 0.25
	; t = 2 * 0.25
	; f = 1 / t = 2 Hz

main:
	nop
rjmp main

*/


.def tmp = r16

.cseg
	rjmp reset

reset:
	ldi tmp, high(RAMEND)
	out SPH, tmp
	ldi tmp, low(RAMEND)
	out SPL, tmp


	;REDOSLJED JE BITAN, ZAPISUJEMO OD NAJVECEG A CITAMO OD NAJMANJEG (?)

	ldi tmp, (1 << PD5)		//OC1A nasli smo di je u DS
	out DDRD, tmp

	ldi tmp, (1 << COM1A0)
	out TCCR1A, tmp

	ldi tmp, (1 << WGM12) | (1 << CS11) | (1 << CS10)
	out TCCR1B, tmp

	; f_oc1a = fclk /( 2 * N * (1 + OCR1A))
	; N * (1 + OCR1A) = f_clk / (2 * f_oc1a)
	; N * (1 + OCR1A) = 7372800 / 4			f_oc1a je zadano u zadatku
	; N * (1 + OCR1A) = 1843200
	; 1 * (1 + OCR1A) = 1843200     => OCR1A = 1843199		1, 8, 64 su prescaleri i onda biramo onaj koji nam pase
	; 8 * (1 + OCR1A) = 1843199     => OCR1A =  230399
	; 64 * (1 + OCR1A) = 1843199    => OCR1A =   28799 (OK)		ovo je ok jer je ispod 65k nesto sta nam je max za zapisat u registar


	//minimalno frekv za dobit u 8 bitnim registrima
	;f_oc1a =  7372800 / (2 * 1024 * 256)


	ldi tmp, high(28799)
	out OCR1AH, tmp
	ldi tmp, low(28799)
	out OCR1AL, tmp				// zadnje 4 linije, zapisali smo nasu vrijednost top-a




main:
	rjmp main