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Measuring A Frequency

 
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Sarge
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Measuring A Frequency
PostPosted: Tue Aug 17, 2004 2:32 pm     Reply with quote
Hi folks, i need to know how i can read in a frequency.
So far, i know I will need to use the ccp function to read in a time period of my source (around 6khz), from then i can convert into a frequency...from which i will use to convert into a relative humidity percentage on my humidity sensor(hs1101)

--- knowing i can do the following to initialize my hardware.....

Code:
setup_ccp1(CCP_CAPTURE_RE);       ///capture rising edge
setup_timer_1 (T1_INTERNAL);


i am now stuck as to what is the simplest way to write code to read my signal ......

thanks for any help!
sargent
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PostPosted: Fri Aug 20, 2004 12:41 pm     Reply with quote
any takers???

all ive read so far in books and online is that you can do it ... that it sounds so obvious to use the ccp as the easiest way to read a frequency .... i see no code for its implementation.... i see alot of things on compare and pwm mode but nothing on capture mode!
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Fri Aug 20, 2004 12:50 pm     Reply with quote
Do a search on the forum for Tachometer.
One of my old posts has links to tach projects which
include sample code.
sar



Joined: 08 Sep 2003
Posts: 36

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Tachometer
PostPosted: Sat Aug 21, 2004 11:45 am     Reply with quote
This example here;

http://www.vermontficks.org/dtachc.htm
lubing



Joined: 05 May 2008
Posts: 1

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Re: Tachometer
PostPosted: Fri May 09, 2008 8:54 pm     Reply with quote
sar wrote:
This example here;

http://www.vermontficks.org/dtachc.htm


why this address can't connect
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