Someone had a similar trouble with HM2 stepgen, looked like feedback was lost (same as your plot) but randomly along a move
I wonder if this is related to the empty base thread causing trouble with pncconf HM2 stepgen configs
I noticed an EtherCAT component on the wiki. Is there any reason that it's never been merged into EMC's repository?
Is it deficient?
[00:29:46] <voxadam> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?ContributedComponents#EtherCAT_Digital_I_O
I don't see any problem at first glance (for instance, license) so the reason it hasn't been merged is it must not have come with a cheerleader/maintainer who wants to convince us of its utility and help take care of it
I remember looking at the source and having a few concerns. For instance, spin_lock() is a linux kernel API and I don't know that it is permitted to call it in the context of a realtime function. if the lock is held by a linux kernel thread and a blocking lock is performed in a realtime thread, the system will hard lock.
forgive my guess if there were actual technical reasons
> The EtherCAT technology is patent protected, in particular by the following patent applications and
patents: DE10304637, DE102004044764, DE102005009224, and DE102007017835 with the
corresponding applications and registrations in various other countries.
so there's this potential problem too. The library that component is based around, ethercat master, has a cryptic statement on their web page: "The license above [GPLv2] concerns the source code only. Using the EtherCAT technology and brand is only permitted in compliance with the industrial property and similar rights of Beckhoff Automation GmbH."
That's strange. I'm not exactly sure what it means.
in 2008, these folks decided they couldn't comply with the LGPL and the ethercat master license: https://lists.berlios.de/pipermail/ethercatmaster-users/2008-November/000375.html
woo whoooo. (surfin at the hotel)
cool, where are you?
we're at microtel
holiday inn near the university.
yep. holiday in
on plymouth road?
we're right by there
want to stop by?
oh - is the microtell right donw the road.
we're on the south side of plymouth
wow - I am a slow typer
through the lobby and turn right
aha, here's breakfast: http://www.allmenus.com/mi/ann-arbor/246962-northside-grill/menu/breakfast/
(I was sold when I got down to Top Your Omelet with Chili (Vegetarian or House)')
it's not exactly on the way to workshop though