;
; this goes into the timer module, when it is written.
;
.set		TCCR0_INIT = CLK8	; ck/8
.set		TCNT0_INIT = 225
.set		TIMSK_INIT = (1<<TOIE0)

timer_interrupt:
		ldi	temp, TCNT0_INIT; 156 counts until overflow
		out	TCNT0, temp

		rcall	pw_control

		tst	count
		brne	timer_done	; call at the PWM cycle time.
		rcall	sw_read
timer_done:		
		reti