2012/3/30 Jeshua Lacock jes...@3dtopo.com:
I am familiar with the latency test, that is exactly what I was referring to.
It reports two Max Jitters there and I did not know for certain that one was
for servos and the other for steppers. Thank you.
No, no, no!!! Based on the second sentence,
On Friday, March 30, 2012 06:05:34 AM Viesturs Lācis did opine:
2012/3/30 Jeshua Lacock jes...@3dtopo.com:
I am familiar with the latency test, that is exactly what I was
referring to. It reports two Max Jitters there and I did not know for
certain that one was for servos and the other for
sometimes it's fun to read about what people with obese piles of money are up
to.
--- On Thu, 3/29/12, Eric H. Johnson ejohn...@camalytics.com wrote:
From: Eric H. Johnson ejohn...@camalytics.com
Subject: [Emc-users] LAMP stack for robotics
To: emc-users@lists.sourceforge.net
Date:
Look here for fast motherboard - cpu combinations:
https://www.osadl.org/Individual-system-data.qa-farm-data.0.html#c4366
unfortunately we cant use the osadl kernel patch as yet (that will be my
next gripe, after I am over the present one.
So dont expect results any time soon.)
cheers,
j.
2012/3/30 gene heskett ghesk...@wdtv.com:
One mistake in the above Viesturs, in your 40 kilohertz base_thread loop
description, linuxcnc has been able to issue a complete step pulse per loop
iteration for something like 3, maybe 4 years now. It does this by timing
a 2 or 3 microsecond pulse
2012/3/30 Jan de Kruyf jan.de.kr...@gmail.com:
Look here for fast motherboard - cpu combinations:
https://www.osadl.org/Individual-system-data.qa-farm-data.0.html#c4366
And that page is very good at showing that more cores and higher cpu
clock rates do not necessarily mean less jitter.
For
It is the combination that matters Viesturs.
The ASUS board in the first rack is impressive.
j.
On Fri, Mar 30, 2012 at 1:00 PM, Viesturs Lācis viesturs.la...@gmail.comwrote:
2012/3/30 Jan de Kruyf jan.de.kr...@gmail.com:
Look here for fast motherboard - cpu combinations:
2012/3/30 Jan de Kruyf jan.de.kr...@gmail.com:
It is the combination that matters Viesturs.
Well, I think that there are many factors that matter.
My goal was to explain Jeshua and probably other new users that for
stepper machines (meaning all the machines, which control motor drives
with
On Friday, March 30, 2012 07:21:25 AM Viesturs Lācis did opine:
2012/3/30 gene heskett ghesk...@wdtv.com:
One mistake in the above Viesturs, in your 40 kilohertz base_thread
loop description, linuxcnc has been able to issue a complete step
pulse per loop iteration for something like 3,
Yes you are right on the dot there.
j.
On Fri, Mar 30, 2012 at 1:23 PM, Viesturs Lācis viesturs.la...@gmail.comwrote:
2012/3/30 Jan de Kruyf jan.de.kr...@gmail.com:
It is the combination that matters Viesturs.
Well, I think that there are many factors that matter.
My goal was to explain
On Friday, March 30, 2012 10:12:25 AM Jan de Kruyf did opine:
Yes you are right on the dot there.
j.
On Fri, Mar 30, 2012 at 1:23 PM, Viesturs Lؤپcis
viesturs.la...@gmail.comwrote:
2012/3/30 Jan de Kruyf jan.de.kr...@gmail.com:
It is the combination that matters Viesturs.
Well,
The board in rack 1 slot 2 is even more impressive!
Dave
On 3/30/2012 6:07 AM, Jan de Kruyf wrote:
It is the combination that matters Viesturs.
The ASUS board in the first rack is impressive.
j.
On Fri, Mar 30, 2012 at 1:00 PM, Viesturs
Lācisviesturs.la...@gmail.comwrote:
Jan de Kruyf wrote:
Look here for fast motherboard - cpu combinations:
https://www.osadl.org/Individual-system-data.qa-farm-data.0.html#c4366
unfortunately we cant use the osadl kernel patch as yet (that will be my
next gripe, after I am over the present one.
So dont expect results any time
Jan de Kruyf wrote:
It is the combination that matters Viesturs.
The ASUS board in the first rack is impressive.
Impressively mediocre! It has jitter events out to 40 us!
For about $150 you can build an Intel D510MW system that
will do almost TEN TIMES better, a good reliable 5 us
latency,
In trying to get an understanding of Smart Serial I came across the
intro for the Mesa 3c20 driver. It states:
...
The 3C20 host interface is a RS-422 or RS-485 serial port that supports
baud rates up to 1.84 MBaud. Efficient dual FIFO buffered interface
allows real time and queued commands to
2012/3/29 Viesturs Lācis viesturs.la...@gmail.com:
It is past 9 PM, so I will try to run LinuxCNC with 8i20
attached tomorrow morning once more.
Peter, today I tried again and the result is the same as before -
fault led is turned on and I do not see 8i20 in Show HAL config
under Pins -
Greetings,
My new motherboard for EMC2 does not have a Parallel port on it - so I bought a
PCI card for it in haste. Now it seems that I bought the wrong card for the job:
http://www.amazon.com/gp/product/B000MY45WS/ref=oh_o02_s00_i03_details
The output from 'lspci':
08:00.0 Serial
On Fri, 30 Mar 2012, Jeshua Lacock wrote:
Date: Fri, 30 Mar 2012 13:12:20 -0600
From: Jeshua Lacock jes...@3dtopo.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: [Emc-users]
On Mar 30, 2012, at 1:12 PM, Jeshua Lacock wrote:
My new motherboard for EMC2 does not have a Parallel port on it - so I bought
a PCI card for it in haste. Now it seems that I bought the wrong card for the
job:
Actually, perhaps I spoke too soon. On the box it states Add a dual voltage
On Mar 30, 2012, at 1:22 PM, Peter C. Wallace wrote:
The Oxsemi (well PLXTech now) OX16PCI954 does support EPP (I have one and it
works with our EPP interfaced FPGA cards)
Thanks Peter.
So, how did you determine that address to use for the stepper config?
Why do you need EPP?
Perhaps I
2012/3/30 Jeshua Lacock jes...@3dtopo.com:
Actually, perhaps I spoke too soon. On the box it states Add a dual voltage
high-speed parallel port (EPP/ECP) to your computer.
EPP mode is needed only and exclusively for external fpga boards.
If Your goal is software step generation, then You do
On Fri, 30 Mar 2012, Jeshua Lacock wrote:
Date: Fri, 30 Mar 2012 13:33:09 -0600
From: Jeshua Lacock jes...@3dtopo.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject: Re:
On Mar 30, 2012, at 1:20 AM, Viesturs Lācis wrote:
Does anyone know of some known settings to try disabling in CMOS to possibly
get lower numbers? My 1.0ms Max Jitter is under 9300, but if possible I
would like to get it even lower.
IMHO it is very good number already. You have max
On 3/30/2012 3:23 PM, Jeshua Lacock wrote:
On Mar 30, 2012, at 1:12 PM, Jeshua Lacock wrote:
My new motherboard for EMC2 does not have a Parallel port on it - so I
bought a PCI card for it in haste. Now it seems that I bought the wrong card
for the job:
Actually, perhaps I spoke too soon.
On Fri, 30 Mar 2012, Kirk Wallace wrote:
Date: Fri, 30 Mar 2012 11:13:53 -0700
From: Kirk Wallace kwall...@wallacecompany.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: LinuxCNC Users List emc-users@lists.sourceforge.net
Subject: [Emc-users] Smart
On Mar 30, 2012, at 1:50 PM, Kent A. Reed wrote:
Whatever you have, it doesn't match the description in the Amazon link
you sent (a single parallel port incorporating an OX16PI952 chip).
The OX16PI954 chip reported by lspci supports 4 uarts and a parallel
port. see
On Fri, 2012-03-30 at 13:12 -0600, Jeshua Lacock wrote:
Greetings,
... snip
It doesn't appear to support EPP. So, can anyone recommend a card that
will work for sure? Or these appear to support EPP, but will they work
on Ubuntu 10.04?
Well according to this datasheet:
On Mar 30, 2012, at 1:37 PM, Viesturs Lācis wrote:
2012/3/30 Jeshua Lacock jes...@3dtopo.com:
Actually, perhaps I spoke too soon. On the box it states Add a dual voltage
high-speed parallel port (EPP/ECP) to your computer.
EPP mode is needed only and exclusively for external fpga
2012/3/30 Jeshua Lacock jes...@3dtopo.com:
And, that is very interesting! When I run the CPU hog, my max jitter goes
down to about 1,000!
Wow! How long did You run the latency test? Did You try to put some load to PC?
I would like to set the CPU as instructed, but I have never used grub
On Fri, 30 Mar 2012, Viesturs L?cis wrote:
Date: Fri, 30 Mar 2012 21:23:50 +0300
From: [UTF-8] Viesturs L?cis viesturs.la...@gmail.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
Subject:
2012/3/30 Jeshua Lacock jes...@3dtopo.com:
On Mar 30, 2012, at 1:37 PM, Viesturs Lācis wrote:
I guess that one of these c090, c080, c070, c060 or c020 is the port
address, which should be specified in the HAL file (sorry, I am not
that smart to know, which one exactly; trial-and-error
2012/3/30 Peter C. Wallace p...@mesanet.com:
Is your RJ45 pin 3 high? (high than pin 6) if not you likely have the +/-
swapped on both RX and TX
Just to make sure that I correctly understand, what do You mean:
Pin 3 is Txa for 8i20, so I have connected to non-inverted input of
SN75179 chip.
On Fri, 30 Mar 2012, Viesturs L?cis wrote:
Date: Fri, 30 Mar 2012 23:27:30 +0300
From: [UTF-8] Viesturs L?cis viesturs.la...@gmail.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
On Mar 30, 2012, at 2:08 PM, Viesturs Lācis wrote:
2012/3/30 Jeshua Lacock jes...@3dtopo.com:
On Mar 30, 2012, at 1:37 PM, Viesturs Lācis wrote:
I guess that one of these c090, c080, c070, c060 or c020 is the port
address, which should be specified in the HAL file (sorry, I am not
Jeshua;
So how would that be specified? 0c090? The default is 0x378.
It's in hexadecimal, so 0xc090 would be fine.
(I'm no expert, but…) I just added another card to my system, and this card has
2 parallel ports on it. Each connector goes to a port; the issue is getting the
correct address
On Mar 30, 2012, at 1:59 PM, Viesturs Lācis wrote:
2012/3/30 Jeshua Lacock jes...@3dtopo.com:
And, that is very interesting! When I run the CPU hog, my max jitter goes
down to about 1,000!
Wow! How long did You run the latency test? Did You try to put some load to
PC?
I let it run
2012/3/30 Peter C. Wallace p...@mesanet.com:
On Fri, 30 Mar 2012, Viesturs L?cis wrote:
Date: Fri, 30 Mar 2012 23:27:30 +0300
From: [UTF-8] Viesturs L?cis viesturs.la...@gmail.com
Reply-To: Enhanced Machine Controller (EMC)
emc-users@lists.sourceforge.net
To: Enhanced Machine Controller
On Friday, March 30, 2012 04:39:35 PM Jeshua Lacock did opine:
Greetings,
My new motherboard for EMC2 does not have a Parallel port on it - so I
bought a PCI card for it in haste. Now it seems that I bought the wrong
card for the job:
On Friday, March 30, 2012 04:46:05 PM Jeshua Lacock did opine:
On Mar 30, 2012, at 1:12 PM, Jeshua Lacock wrote:
My new motherboard for EMC2 does not have a Parallel port on it - so I
bought a PCI card for it in haste. Now it seems that I bought the wrong
card for the job:
Actually, perhaps
On Friday, March 30, 2012 04:48:08 PM Jeshua Lacock did opine:
On Mar 30, 2012, at 1:22 PM, Peter C. Wallace wrote:
The Oxsemi (well PLXTech now) OX16PCI954 does support EPP (I have one
and it works with our EPP interfaced FPGA cards)
Thanks Peter.
So, how did you determine that
On Friday, March 30, 2012 04:56:17 PM Jeshua Lacock did opine:
On Mar 30, 2012, at 1:20 AM, Viesturs Lؤپcis wrote:
Does anyone know of some known settings to try disabling in CMOS to
possibly get lower numbers? My 1.0ms Max Jitter is under 9300, but
if possible I would like to get it even
2012/3/31 gene heskett ghesk...@wdtv.com:
It is better to put it as a file in /etc/grub.d/, named
as 07_rtai as this way it can maybe survive a kernel update.
It does not really make sense, because kernel updates are strongly not
recommended - LinuxCNC will not accept any other kernel but the
That is very impressive Jon,
I will certainly look out for an Intel D510MW being hooked up in the OSADL
test rack,
and see what it does under their exact conditions!
And how many days did you run that board with an RTAI kernel and got that
result?
Keep the bright side up!
j.
On Fri, Mar 30,
Do you get those errors with servos Gene? or with steppers!
I am interested, since Jon was praising that board so much.
j.
2012/3/30 gene heskett ghesk...@wdtv.com
On Friday, March 30, 2012 10:12:25 AM Jan de Kruyf did opine:
Yes you are right on the dot there.
j.
On Fri, Mar 30,
2012/3/31 Jan de Kruyf jan.de.kr...@gmail.com:
Do you get those errors with servos Gene? or with steppers!
I am interested, since Jon was praising that board so much.
Jon is not the only one... I also feel like intel has really deserved
a few good words (I kind of feel like amd fan) about
On Friday, March 30, 2012 07:18:08 PM Viesturs Lācis did opine:
2012/3/31 gene heskett ghesk...@wdtv.com:
It is better to put it as a file in /etc/grub.d/, named
as 07_rtai as this way it can maybe survive a kernel update.
It does not really make sense, because kernel updates are strongly
On Friday, March 30, 2012 07:29:30 PM Jan de Kruyf did opine:
Do you get those errors with servos Gene? or with steppers!
I am interested, since Jon was praising that board so much.
j.
Steppers. Servo's are way out of my budget's reach. I am retired, 77yo
with SS and a little
On 3/30/2012 5:41 PM, Jan de Kruyf wrote:
Do you get those errors with servos Gene? or with steppers!
I am interested, since Jon was praising that board so much.
j.
Jan:
Such numbers seem to be typical broadly for boards equipped with Atom
D510/D525 cpus and NM10 chipsets. See, for
Jan de Kruyf wrote:
That is very impressive Jon,
I will certainly look out for an Intel D510MW being hooked up in the OSADL
test rack,
and see what it does under their exact conditions!
And how many days did you run that board with an RTAI kernel and got that
result?
Whoops, sorry, the
Jan de Kruyf wrote:
Do you get those errors with servos Gene? or with steppers!
I am interested, since Jon was praising that board so much.
But I am encountering following errors after the motor has reached speed
and moved a good distance at that speed, but don't know what to adjust
I thought I saw a D510 on that page in a different rack.
The graph for the D510 did not look as good as the graph for the 3rd
board down in the first rack. That is a gigabyte board I believe.
I wasn't sure how they came up with the test numbers, I was comparing
curves relative to each other.
On Saturday, March 31, 2012 01:44:21 AM Jon Elson did opine:
Jan de Kruyf wrote:
Do you get those errors with servos Gene? or with steppers!
I am interested, since Jon was praising that board so much.
But I am encountering following errors after the motor has reached
speed and
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