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Author Topic: Help with ccp and proton  (Read 1604 times)
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jeanninemtv
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« on: March 05, 2009, 12:54:50 12:54 »

hello,

could you help me a little to measure 2 sources with  frequencies from 0.1  to  500 Hz with pic using proton and ccp modules? , only with interrupts?  i tried but no sucess; only with pulsin i have results but it leaves my code so busy ...
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Opast
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« Reply #1 on: March 07, 2009, 01:14:02 13:14 »

Proton demo version in sample folder contains CCP file.  Run it in Ptoteus and it should get you going. 
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jeanninemtv
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« Reply #2 on: March 07, 2009, 07:03:47 19:03 »

works for frequencies above my range Sad  for "lower2 freqs i still have problem of precision
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Opast
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« Reply #3 on: March 07, 2009, 11:17:23 23:17 »

Using CCP you can't measure freq from 0.1hz and that's why you must use software for measurement.  The lowest measurement you can get with CCP is 145hz using 4mhz crystal.  Check proton manual under HPWM.  Probably you can lower your crystal to get lower frequency reading using 32khz.
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