[time-nuts] 1PPS to 32.768 khz

Dan Kemppainen dan at irtelemetrics.com
Wed Oct 19 12:25:41 EDT 2016


If you want to go Tom's picDIV route, and are lazy like me, this is one 
of several boards available.


You'll get several copies of the bard board for under $10. Few minutes 
stuffing it, and you'll have a working device...


> Hi Lee,
> It's not likely you can directly multiply 1PPS up to 32 kHz, but it's easy to divide 10 MHz down to 32 kHz.
> See http://leapsecond.com/pic/src/pd30.asm for a $1 PIC example.
> A stand-alone 10 MHz OCXO or the simplest possible GPSDO would work for your digital clock project. Chris and Nick and many others have shared low-cost Arduino-class examples to the list over the years. Another example is the MCU-less James Miller design which uses a PLL at 10 kHz.
> Contact me off-list some day when want a Trimble Thunderbolt; they are still available.
> /tvb

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