[sdiy] Software to log frequency every x seconds?

[Magnus Danielson]

From: Scott Gravenhorst <music.maker at gte.net>
Subject: Re: [sdiy] Software to log frequency every x seconds?
Date: Wed, 03 Oct 2007 10:25:37 -0700
Message-ID: <200710031725.l93HPb6Z010353 at linux7.lan>

Scott,

> For what it's worth, it would not take much work to put together an FPGA design
> which could measure frequency and send the data via a serial connection to a PC
> which could log it with almost any terminal program.  Such an instrument could be
> quite accurate I would think.  In fact, there's free code available for an FPGA
> based frequency counter, so it is quite possible.

It is not to hard to make an accurate counter. You don't even need to reuse any
code. A reciprocal frequency engine is very simple, but for very small
frequency ranges, either time or event steered gate-time. Having a clock of
50 or 100 MHz should give a wonderfull resolution for audio-range frequencies.

> But then, I'm now addicted to FPGAs...
> 
> -- ScottG who is not in an FPGA 12 step program.

<laugther style="Mad Scientist" strength="Maniacly" reverbration="big stonewalled madscientistlab">Mohahahahahaaaaa!!!!!</laugther>

Cheers,
Magnus