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FW: HP VEE HELP ABOUT FEEDBACK

Question asked by VRFuser on Jun 9, 1999
Dear Alfred,

your Windows95 doesn't allow you smaller times as 55ms. So every time stamp
you can get can't be better than this time even if it seem to be better.
Windows NT has 10ms. So if you need the times more exactly you have to check
for a hardware solution.

Best regards
B. Aufenanger

------------------------------------------------------------
Somatec B. Aufenanger & M. Bernhardt
Jagdweg 7a
D-82041 Deisenhofen

Telefon          : (089) 613 984 91
Fax.               : (089) 613 981 23
Email             : Aufenanger@somatec.de
homepage     : http://www.somatec.com
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-----Original Message-----
From:     Alfred Holmberg [mailto:alfred.holmberg@norske-skog.com]
Sent:     Thursday, June 10, 1999 8:32 AM
To:     hpvxd_xc@hpislsup.lvld.hp.com
Subject:     RE: Need help. Millisecond timing

I have rougly the same problem. I want to calculate events per second.

Present I read two event counters at about 1 sec. intervals and divide on
time interval using successive "now()" readings. I use 5.01  version under
Win95, and have also noticed the 10 ms resolution.

But to obtain neccessary accuracy I need 2 ms resolution or better. So I
would be very grateful for any suggestions on how to come around this
problem, if possible without resorting to additional external electronics.

I have noticed that the "Tmer" has split millisecond resolution,  but can
its accuracy be trusted ?

Hopefully

Alfred Holmberg
Norske Skog ASA
7620 SKOGN
Norway
E-mail: alfred.holmberg@norske-skog.com



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