[time-nuts] precision timing pulse

Chris Albertson albertson.chris at gmail.com
Tue Nov 15 21:25:46 EST 2016


The PicDiv does something not needed for this use case.   It produces a
nice usable output frequency.  You don't need that,  you only need to know
when X number of cycles have completed.   It is an order of magnitude
simpler problem.    Just count to X then stop, that's it.

On Tue, Nov 15, 2016 at 2:21 PM, Bryan _ <bpl521 at outlook.com> wrote:

> The author of PicDiv publishes the ASM code for his dividers. If fluent in
> assembley(er) it's probably quite doable. Many of the examples have a ARM
> or SYNC feature
>
>
> http://www.leapsecond.com/pic/picdiv.htm
>
>
> -=Bryan=-
>
>
> ________________________________
> From: time-nuts <time-nuts-bounces at febo.com> on behalf of Hal Murray <
> hmurray at megapathdsl.net>
> Sent: November 15, 2016 12:17 PM
> To: Discussion of precise time and frequency measurement
> Cc: hmurray at megapathdsl.net
> Subject: Re: [time-nuts] precision timing pulse
>
>
> ciandjaburch at gmail.com said:
> > How do I get a pulse to start with a push button and then stop for
> example
> > 500 or 10,000 seconds later?
>
> How about another PIC?
>
>
> --
> These are my opinions.  I hate spam.
>
>
>
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-- 

Chris Albertson
Redondo Beach, California



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