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		raverbashing on Oct 31, 2013 \| parent \| context \| favorite \| on: Why does the alarm clock snooze button give you ni... "In the old days when everything was made with discrete components" and you talk about "comparitor" (comparator) and "minus one" No, this is too advanced. For that you would be looking at 4 bits storage + comparator + the "minus one" circuit (which is very complicated) for a BCD counter.

mhandley on Oct 31, 2013 [–]

You don't need the "minus one" circuit. Just always store the previous minute value whenever the minute is incremented, and then latch that value when the alarm goes off.

BarkingOven on Oct 31, 2013 | [–]

Yes, of course. You are correct. Saves even more logic real estate. :-)

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