[ntp:questions] help with setting up NTP on windows with a USB GPS

Chris xxx.syseng.yyy at gfsys.co.uk
Tue Jul 30 16:38:56 UTC 2019

On 07/30/19 17:00, Jakob Bohm wrote:

> The problem that many people face is the absence of actual serial ports
> on many currently available computers. This tendency to remove the
> hardware interfaces historically used to feed PPS signals to commonly
> available computers began way back in the 1990s where a powerful OS
> vendor actively began encouraging this change.
> Hence my suggestions for how the time synchronization community could
> (belatedly) adapt to the absence of those interfaces and seek ways to
> get the precise time data into such "legacy-free" computers.
> Now, there are still computers with input pins that can efficiently
> convey a traditional PPS signal to ntp software, but they are no longer
> the general majority of fast commodity computers.
> Enjoy
> Jakob

Most computers have spare slots, so why not buy a serial card and use
that ?. Not expensive either, especially if s/hand.

USB never was designed for real time work and trying to use it for
such is always going to be hard work and a compromise...


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