[time-nuts] teensy as time capture device

Poul-Henning Kamp phk at phk.freebsd.dk
Thu Sep 24 01:08:07 EDT 2015


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In message <5602F65B.6050600 at earthlink.net>, Jim Lux writes:

>I've got a teensy3.1 hooked up to a 33120 function generator (not 
>exactly a super stable device) and generating period data for a 1 Hz 
>square wave.

That is actually a particularly bad way of doing it, because the
33120 will generate a sine and run it through a zero-detector.

You get much better performance by defining a ARB function which is
a square.


-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
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Never attribute to malice what can adequately be explained by incompetence.


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