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Subject: | Re: [ts-7000] Re: New file uploaded to ts-7000 |
From: | "Eddie Dawydiuk" <> |
Date: | Fri, 10 Feb 2006 10:33:46 -0700 (MST) |
Hello, > If I am reading this right, this will increase the resolution of > gettimeofday from 10,000 usec to < 1,000 usec... Is that right? Correct. > I have an encoder that can generate > 20 pulses in 10,000 usec.... > Is there any way to time stamp these pulses so I know the interval? The best way to do this is to use the 40bit debug timer, it runs at 983Khz. The gettimeofday() unfortunately is not very accurate.. Its supposed to interpolate time between clock ticks but the ep93xx Linux port doesn't yet do this(Jesse's NetBSD port does though). Another option would be to use the TS-7260, the XDIO can create up to 14.7Mhz free running counter. //Eddie Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/ts-7000/ <*> To unsubscribe from this group, send an email to: <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ |
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