[time-nuts] Very slow freq. counter / event counter

Tom Van Baak tvb at LeapSecond.com
Fri Apr 18 22:32:28 UTC 2014

> PCs can do that without the chip.  Connect the pulse to the DCD
> line of an RS232 port and it will get logged with a uSec timestamp.
> It works for any frequency from maybe 1kHz to 0Hz.

Yes, this works because the OP only needed 1/100th second resolution.
For (windows) PC-based frequency or event counting or timestamping see:

PC Time Stamping Counter using serial port

PC Frequency Counter using serial port


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