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Frequency measurement w/ PIC

 
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kender



Joined: 09 Aug 2004
Posts: 768
Location: Silicon Valley

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Frequency measurement w/ PIC
PostPosted: Thu Aug 12, 2004 11:14 am     Reply with quote
Colleagues,

I have to measure frequency in the range between 0.5 - 1 MHz. Is it possible to do this with just PIC's CCP hardware?

Thanks,
Nick
Mark



Joined: 07 Sep 2003
Posts: 2838
Location: Atlanta, GA

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PostPosted: Thu Aug 12, 2004 11:39 am     Reply with quote
In a word yes it can be done. The 1MHz might be a problem if the pic isn't running fast enough. For that broad a range, it is not a cut and dry reading of the ccp reg. You will have to do a little creative programming and probably expand the ccp reg in software.
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