szczys

/*
  AVR ATmega168 Analog Comparator Demonstration
  by Mike Szczys
  
  I'm using a voltage divider with a photoresistor on
  PC6 and a voltage divider with equal values on PC7
  to yield a 2.5V reference signal.
  
  The analog comparator is set to throw an interrupt
  whenever there is a zero crossing. I then check the

szczys

;Begin delaying

LDI ZH,0xFF ;Set high byte
LDI ZL,0xFF ;Set low byte

DelayLoop:
  SBIW ZL,1 ;subtract one from word
  BRNE DelayLoop ;Branch back to DelayLoop unless zero flag was set

;Go on with the rest of life