Olin,

I didn't say it was better.  It's just a suggestion.
If you don't like it, don't use it.  I don't care.

Jim





----- Original Message ----- 
From: "Olin Lathrop" <olin_piclist@embedinc.com>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Monday, August 17, 2009 6:40 AM
Subject: Re: [EE] How to generate a 1000 Hz pulse? (and PIC timers)


> jim wrote:
>> Put more magnets or whatever on the wheel so you increase the
>> frequency at lower speeds.
>> So for instance, instead of 1 magnet (trigger), have 4 or 6 or 8 or
>> 10 or whatever.
>
> How's that better than just increasing the prescaler, essentially clocking
> the timer lower?  You still have all the same constraints.  At the high 
> end
> you need some minimum resolution.  For a fixed size timer, that dictates 
> the
> lowest frequency you can measure without wrapping.
>
>
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