. Great
environment to work with EC.
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-time operation in user space under
RT_PREEMPT.
__ __
What can I do to lessen this jitter? Does anyone have a working EtherCAT
master running at 1 kHz with jitter under 50 us?
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signal checked on a scope, shows very little jitter - 1us. or less.
sorry, that was a wrong number...
the module I have advertises Ton=60 us, not clear how to exactly
interpret time values below that, but zooming in the scope trace looking
at beginning of transition, jitter is more like ~30
something non-optimal in my kernel config?
Regards,
Matthieu
On 6/11/12 2:45 PM, Matthieu Bec wrote:
Hello all,
I'm experimenting with different NIC to better understand the pros, cons
and tradeoff of different solution. My system has on-board e1000e, and a
PCIe r8169, my test application
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if I'm just running into a stable-1.5 bug. I'm following the tty
examples in the directory very closely. Beyond changing the hardware
declarations to match the network, it's the same program.
Does anyone have an EoE example they could share?
Thanks!
T
On Tue, Aug 14, 2012 at 7:29 AM, Matthieu Bec m
?
On 08/15/12 07:48, Matthieu Bec wrote:
I have an EL6614, besides starting the master (stable-1.5), configuring
the network interface and bringing it up, nothing else is needed to get
EOE connectivity.
On 08/14/12 15:15, Thomas Bitsky, Jr. wrote:
Ok, so I made some progress, I think. I was able
when I activate the EoE interface. Please
note that I am not doing any locking in my program at this time.
Thanks in advance for any help.
Thanks!
Tom
On Wed, Aug 15, 2012 at 10:26 AM, Matthieu Bec m...@gmto.org
mailto:m...@gmto.org wrote:
note that's using the master stack only.
I don't
# ifconfig eoe0s7 192.168.127.10
# ifconfig eoe0s7 up
Is there any way to make this happen automatically on startup? In
/etc/network, I created a file called ifcg-eoe0s7 and put in:
IPADDRESS=192.168.127.10/24 http://192.168.127.10/24
STARTMODE=auto
But it must not be working because the
appreciate it.
Thanks again!
Tom
On Wed, Aug 15, 2012 at 1:02 PM, Matthieu Bec m...@gmto.org
mailto:m...@gmto.org wrote:
# ifconfig eoe0s7 192.168.127.10
# ifconfig eoe0s7 up
Is there any way to make this happen automatically on startup? In
/etc/network, I created
: AL status message 0x001E: Invalid
input configuration.
[13787.589025] EtherCAT 0-0: Acknowledged state PREOP.
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know if there is some)
Thank you for any help.
2012/10/15 Matthieu Bec m...@gmto.org:
Hello Eugen,
Don't map this, it's not a pdo:
{0x, 0x00, 6}, /* Gap */
Different ways to do it, just make sure your changes are properly reflected
in your slave_0_pdos
This should work
Hello Philippe,
One odd thing is you're giving PERIOD_NS to sync0 and sync1.
I'm not sure what's the effect of that, could be your issue.
The vanilla dc_user example does:
ecrt_slave_config_dc (..., period0_val, shift0_val, 0,0);
Matthieu
On 12/12/12 11:48 AM, hamelin.phili...@ireq.ca
Hello Philippe,
see Gavin's reply for clarification on in/out and Rx/Tx
Outputs:
- SM0: DC Sync Activate
- SM1: DC Sync Start
- SM2: Channel 1 2 outputs
Your `ethercat pdo` report seems in agreement
Inputs:
- SM3: SysTime and Feedback
Those show 'unticked' in my twcat by default (xml
Hello Mike,
This kind of message may show when your build and runtime versions mismatch.
Check vermagic from modinfo ec_master against uname -r ?
Regards,
Matthieu
On 3/6/13 9:20 PM, Mike O'Connor wrote:
Hi All
I have a very small program I want to control, which does not need a lot
of
++;
}
}
return 0;
}
//
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etherlab-users-ow...@etherlab.org
When replying, please edit your Subject line so it is more specific
than Re: Contents of etherlab-users digest...
Today's Topics:
1. Re: WARNINGS: Working counter changed and datagram
UNMATCHED (matthieu bec
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master...done!
Any ideas why this would be? Thanks in advance!
Dusty Clark
MMT Observatory
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is constantly updated. What am I
missing?
Thanks,
Allan
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to EC_WD_DISABLE?
Thanks,
Allan
On 20/02/2014 20:42, Matthieu Bec wrote:
Hello Allan,
What do you mean by `stop writing`, stopping the cyclic task?
Slaves usually drop off OP state if they stop receiving frames, yours
might default itself to an Off state that could explain the issue.
Try explicitly
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Hi Sebastien,
Thanks, really useful for servers equipped with several e1000e, bumpless
restart of ethercat is great.
Attached patch should automate the task (3.6.11.9 and later, I haven't looked
older version)
Regards,
Matthieu
On 4/11/15, 3:24 AM, "etherlab-users on behalf of Sebastien
Hello John,
not sure this is your issue, but I went though something very similar. Read the
c++11 ref. closely:
- sleep_until "the clock tied to sleep_time is used"
vs.
- sleep_for "a steady clock is used to measure the duration"
Try replace sleep_for with a sleep_until and chrono time tied to
Hello Thomas,
Both systems give similar cyclictest results? in other words, you are positive
the difference starts with ethercat master?
I'm not clear for example if celeron and i3 fall under the same processor
family when you compile your kernel. Still such difference, explanation would
seem
lain the problem.
Are these problems avoided or reduced in the kernel space, or will I have the
exact same timing?
Thanks!
On 3/8/16, 9:32 PM, "Matthieu Bec" <m...@gmto.org> wrote:
>Hello Thomas,
>
>Both systems give similar cyclictest results? in other words, you are posit
Hi,
Has anyone had experience using a "CU1128 | EtherCAT junction" from Beckhoff
(*) with the etherlab master?
It seemingly looks like a dumb device, but the documentation hints at
particular steps to set it up with TwinCAT:
```
Topological configuration
With the CU1128, special attention
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