Ttelmah Guest
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Posted: Mon Dec 01, 2008 5:45 am |
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Forget it.
Just use a frequency to voltage converter IC.
The PIC, has no 'voltage' outputs, so you would have to use a PWM, then integrate this, to do exactly the same job, as directly converting the frequency, with the PIC 'added', and basically not helping at all.
It is the wrong tool for the job.
Look at the LM2917, or the AD650.
The former, is common, cheap, and remarkably good. The latter is more complex, supporting both V/F, and F/V conversions.
Best Wishes |
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