There is no easy way to divide directly from 10MHz to 32768Hz. On my web site at www.qsl.net/zl1bpu/MICRO there are several signal generator projects which would do the job of generating 32768Hz from 10MHz for you.
With any of these (single chip micro approach, using 24-bit Direct Digital Synthesis) the closest you'd get would be to load 078CBC into the DDS. The result would be 32767.9846Hz, an error of 0.47ppm (14 sec/year). By extending the algorithm to 32 bit, as I did in my LF Exciter, the step resolution improves to 0.23mHz, and by loading 8637BD0 you'd generate 32767.999917 Hz, or an error of 2.5ppb. To put it into perspective, that's an error of 8 seconds in 100 years! Similar maths would apply to any micro-based DDS. I suggest adapting my design purely because it's simple, and a chip like the ATTiny2313 is well suited to the job. Regards, Murray ZL1BPU _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.