Don't be surprised if there are double that number of pulses. When you=20
get it running, the RPM might be of by a factor of 2.
On 11/21/2012 4:56 PM, nik . wrote:
> A 4 stroke/4 cyl engine has 2 ignition pulses per 1 crankshaft revolution=
..
> If this is so then whats the technique behind counting RPM with a PIC. I
> need some ideas only. Please don't discuss HW or other.
>
> I've gone as far as thinking the RPM will have to be fed to a CCP pin as
> input. I understand how the CCP will be setup but can't quite get the ide=
a
> of how exactly to count RPM and say if that's sorted out, display it (thi=
s
> part is not a concern right now).
>
> Any ideas would be great.

--=20
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