On 06/28/2011 01:13 PM, H. Carl Ott wrote:
On Tue, Jun 28, 2011 at 1:03 PM, neutron spin<[email protected]> wrote:
32.768KHz has a nice property that it oscillates 2^15 times per second
which makes the timer math easy..
A little trickier dividing 32768 down to 60hz though.
Anybody got a simple way to do that in a micro?
Going to have short and long cycles, that's okay as long as they
eventually add up to 60hz.
Digikey sells a 3.93216 MHz crystal; that divides into 60 Hz 2^16 times,
which is easy to do if the microcontroller has a 16-bit timer. Or even
with a plain logic chip or two.
Brian Poi
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