frequency meter in PBP

[Ioannis]

Hi Skimask. If you study the Microchip AN592, you 'll see that a humble PIC 16C55 is counting up to 50 MHz!

It use a clever technique to do that. But in PBP, I think it is quite difficult to obtain.

Ioannis

[skimask]

Hi Skimask. If you study the Microchip AN592, you 'll see that a humble PIC 16C55 is counting up to 50 MHz!

It use a clever technique to do that. But in PBP, I think it is quite difficult to obtain.

Ioannis

Right, using the prescaler, I understand that, 10ns rise/fall time on the RTCC pin...works fine I'm sure (although I've never tried that particular project on that particular PIC).
And that's what I was saying in the other thread about PBP. Use an external 74193 or something similar to pre-scale the count, and PBP should be able to count a fairly high number.