Andre Puschmann schrieb:
Hi Andy,
Andy Rohr wrote:
Yes, I tried. I used the EtherCAT-Master 1.5 from userspace with a
RT_PREEMPT-Kernel and even with a standard kernel with success.
What does "with success" mean? Did it _just_ run with a PREEMPT kernel
or did it reduce/optimize any real-time parameters (e.g. latency, jitter)?
Did you perform any measurements?
"Just run". I did not perform any realtime-performance measurements as you
might expect, but:
I am using EtherCAT to register "events" (changes of state of an digital Input) and timestamping
them with an accuracy of <5ms relative to an NTP-Server. I can fulfill this requirement, proven by
my measurements (recording and comparing the timestamps of two independent, NTP-synchronized systems
receiving the same signal).
Thanks in advance.
Best regards,
Andre
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