Hello Martin, thanks for jumping into this discussion.
> our (>20) slaves sync within less than 200 ms (with a 4kHz cycle frequency). > > Do you build with the EC_HAVE_CYCLES build option? It greatly increases the accuracy of the time offset calculations. Did you borrow that idea of EC_HAVE_CYCLES from me? http://lists.etherlab.org/pipermail/etherlab-users/2011/001522.html :D sorry I was kidding. Which version of Etherlab are you using? Which linux kernel? The value of HZ in your linux kernel? Maybe you can set the etherlab's debug level to 1 and send us the log file. It's quite helpful to have it. Jun <http://lists.etherlab.org/pipermail/etherlab-users/2011/001522.html>
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