From: Anthony G. Atkielski
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But how can you verify microsecond accuracy on Windows? Even the OS only has
10 ms resolution for the system clock.
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Anthony
=======================================
Anthony,
I appreciate that your needs don't include accurate PC time, but for the
record....
1 - with Windows, you can quite easily get better accuracy than 10
milliseconds. From at least Windows XP onwards, you can have the system
clock run at nearly 1 KHz, providing millisecond accuracy, from native
Windows.
2 - You can interpolate and obtain more accurate timestamps, see:
http://www.satsignal.eu/ntp/TSCtime.html
3 - Windows-8 provides a much more accurate system call,
GetSystemTimePreciseAsFileTime, with microsecond precision. See:
http://msdn.microsoft.com/en-gb/library/windows/desktop/hh706895%28v=vs.85%29.aspx
The reference NTP port will use the GetSystemTimePreciseAsFileTime function
on Windows-8 for better performance.
Cheers,
David
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: [email protected]
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