[time-nuts] Of rubidium life and piggy-bank anemia....
Poul-Henning Kamp
phk at phk.freebsd.dk
Sat Dec 1 21:30:46 UTC 2007
In message <4751D10D.5050608 at xtra.co.nz>, Bruce Griffiths writes:
>Poul-Henning Kamp wrote:
>> In message <4751C857.6020104 at xtra.co.nz>, Bruce Griffiths writes:
>>
>> You guys could save a lot of time if you read my paper where all
>> this is described in detail:
>>
>> http://phk.freebsd.dk/pubs/timecounter.pdf
>
>This paper addresses virtually none of the hardware design issues at all.
That was not the main focus.
The signals were indeed clocked through 3 D flipflops clocked on the
global clock, to handle metastability, before they latched the count
latches.
I probably still have the VHDL somewhere...
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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