Karl Reichert wrote: >> Karl Reichert wrote: >>> When using the tdmacfg-tool, one can specify an offset. Reading >> TDMA-Spec line 568: >>> "If <offset> is given, the time slot is added or modified to send data >> with the specified offset in microseconds relative to the scheduled cycle >> start [...]" >>> To my understanding this means, doing 'tdmacfg rteth0 slot 0 0' means >> that you would override the sync frame slot. Or is there a mistake in the >> spec and one should read: >>> "[...] specified offset in microseconds relative to the scheduled sync >> frame start [...]" >> >> The cycle start is defined by the sync frame. No sync frame, no cycle. >> Thus the former implies the latter. So you cannot use the "slot" command >> of tdmacfg to manipulate sync frames, there is "master" for this (also >> to define a backup master sync frame slot). >> >> Jan >> > Okay, thanks, so it makes sense. > > When I execute this command, I get an error because I don't have the device > /dev/rteth0. When is it created or do I have to create it by hand (with which > parameters)?
Assuming you mean /dev/rtnet -> see README. Jan
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