John Kasunich wrote: > The extreme jitter that Jon Elson keeps mentioning will NOT happen if > you use position-interpolated. capture-position doesn't just use the > number of edges seen since the last time it ran - it also looks at when > those edges occurred, in order to calculate a more accurate value for > velocity and position-interpolated. Those values are even reasonably > smooth and accurate when you are only getting one count every 10th or > 100th time that capture-position runs. > Somebody posted a pastebin that showed large jumps in "some" variable. I was never real clear what that column in the file was showing, but was afraid it was showing very large jumps in the recorded velocity. Since this was scaled counts and not raw counts, I couldn't really tell if that was just the typical sampling jitter seen in an encoder delta reading or somthing more serious. I did see jumps of +/- 50 to 100% in the data from sample to sample, so I was thinking it was a sign of serious problems in reading the encoder signal. Now that I realize it is scaled, I understand I really don't know WHAT that data meant. > Steve should set up halscope as others have instructed. Yes, I think that would be much better.
Jon ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
