Hi Matt,
On 31 Jul 2010, at 22:08 , mattschinkel wrote:
Good job on the RTC lib Rob. How accurate is it?
The longest time I have had my test-board running is about 30 hours.
After that the deviation was a few seconds. But I suppose this is caused
by the crystal (a 32768 Hz watch crystal).
The RTCC module has a calibration register. When I have done my
calculations right it allows a correction of +/- 0.006 percent, while I
seem to need 0.005 percent! I'm currently doing a 24-hour test to see
how good that works.
Regards, Rob.
--
Rob Hamerling, Vianen, NL (http://www.robh.nl/)
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