On 2010-09-02, Stanislav Meduna <st...@meduna.org> wrote:
> On 02.09.2010 14:52, Grant Edwards wrote:
>
>>> we just encountered a problem with our clock: It is running slow with
>>> approximately 24 seconds per hour.
>
>> When you say "verified" do you mean with a recently calibrated
>> frequency counter? Your error is only 100ppm (0.01%).
>
> 24 seconds per hour is way more than 100 ppm.
Doh! You're right. I was off by a factor of 60. It's ~6000ppm.
> What parameter controls the interrupt firing speed?
> Is there some prescaler in some counter hardware that could
> be one off (maybe with value of ~150)?
--
Grant Edwards grant.b.edwards Yow! I feel like I'm
at in a Toilet Bowl with a
gmail.com thumbtack in my forehead!!
--
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss
