Hi - I have a port of that here (Peter Cousens, Oct. 1998 port)

Can find it in the archives, I think Peter has it somewhere for download
- I'd throw it at my web pages alternately, with permission <G>

  Mark

Don B. Roadman wrote:
> Hi!!
>
> Has anyone ported the frecuency counter application note from
> microchip to
> 16x84?...
>
> I havent looked at that appnote, but I did build a counter described
> by Halicky which works perfectly on a 16F84. I redesigned the
> frontend to get more sensitivity, but if you arent interested in
> millivolt levels, his original design is fine. Here is a link. If you have
> trouble getting the files, let me know.
>
> http://www.qsl.net/ta1dr/fm.htm