Re: Displaying time
Re: Displaying time
- Subject: Re: Displaying time
- From: Graham Cox <email@hidden>
- Date: Sat, 23 Aug 2008 00:00:46 +1000
On 22 Aug 2008, at 11:54 pm, Negm-Awad Amin wrote:
This is not ugly, but the starting point for a software PLL.
Well, there's no "loop" to phase lock here. The PLL analogy might hold
up if you used your timer to measure the interval between changes of
the clock, then use that to change the timer rate (feedback). Then you
could ensure that the timer callback always occurred within a certain
interval of the clock changing (analogous to the phase delay in a
PLL). But, it's pretty complex for such a simple task, and not
necessary. If the clock were running much, much faster and you wanted
to keep up with sub-millisecond changes then yes, you might have a
point...
cheers, Graham
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