Fwd: RTC
Andy Green
andy at openmoko.com
Mon Jan 19 21:18:56 CET 2009
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Somebody in the thread at some point said:
| On Monday 19 January 2009 19:02:19 you wrote:
| | 2009.01.17 16:42:25 otimed INFO adjusting clock by 1093.032441
|>> seconds
|> Is it possible it fails to set the hw / rtc clock? It's suspicious the
|> adjustment it wants to make is always going up monotonically and jumps
|> according to elapsed time, it's as if it never manages to adjust it.
|>
|> -Andy
|
| Oh of course. If I would allow hw clock to be adjusted, I wouldn't
have so
| easily visible results ;) This was done to show the cause of the problem.
|
| Sorry I should have said that in my first email.
Hum well I guess it is a software issue somewhere along the line. In
the first interval I quoted the gained error is like 2% and in long
interval it is much less.
Unless it's wildly dependent on temperature an offset error in the
crystal oscillator would be more consistent you would think.
- -Andy
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