On Friday 01 February 2013 21:36:06 Gregory Perry did opine:
Message additions Copyright Friday 01 February 2013 by Gene Heskett
> >
> >From: andy pugh [bodge...@gmail.com]
> >Sent: Friday, February 01, 2013 7:17 PM
> >To: EMC developers
> >Subject: Re: [Emc
On 2 February 2013 02:43, Gregory Perry wrote:
> Never mind, I took a look at the LinuxCNC hardware page for the answer.
> These boards are pretty expensive, almost a thousand bucks for the
> Servo-to-Go ISA card.
There are cheaper options. Free for Parallel port, $80 for Mesa 5i25,
$200 for P
On 2 February 2013 02:37, Gregory Perry wrote:
> What's a typical hardware configuration for LinuxCNC then? I see a lot of
> mention of x86 Atom machines being used. How are you interfacing LinuxCNC
> with high powered MOSFETs to drive servos for example, especially if USB is
> not an option
Never mind, I took a look at the LinuxCNC hardware page for the answer. These
boards are pretty expensive, almost a thousand bucks for the Servo-to-Go ISA
card.
Seems like the BeagleBone and a custom cape with some high powered MOSFETs
would be more cost effective (ala Replicape), but if there
Currently anyone using the master branch and a Mesa card with old
smart-serial firmware (v < 34) will not be able to boot their config.
This patch fixes that (tested), however I am in a hotel, with a Win7
laptop, and can't push.
Could someone please push this to master?
--
atp
If you can't fix
>
>From: andy pugh [bodge...@gmail.com]
>Sent: Friday, February 01, 2013 7:17 PM
>To: EMC developers
>Subject: Re: [Emc-developers] Python Library for the BeagleBone PRUSS
[snip]
>The point is that LinuxCNC as it currently exists handles hardware
>physical
On 1 February 2013 23:45, Gregory Perry wrote:
> Can LinuxCNC run as a simple userland process which talks to a hardware servo
> controller (such as the Mesa card you mention)? Or maybe more to the point,
> is there a standard API with LinuxCNC that will treat a servo control board
> as a sim
>I'm not really sure.
>
>In most setups, LinuxCNC is processing the gcode and running a servo
>motion loop, which requires feedback and good latency timing. I'm not
>sure if you could get LinuxCNC to run 'blind', where the Linux side
>code could run with some sort of artificial feedback and collec
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On 2/1/2013 3:45 PM, Gregory Perry wrote:
> Can LinuxCNC run as a simple userland process which talks to a
> hardware servo controller (such as the Mesa card you mention)? Or
> maybe more to the point, is there a standard API with LinuxCNC
> that wi
>If you understand the latency issues, then by all means port whatever
>you can to the PRU. The example code I pointed to earlier is
>basically a PRU replacement for the software stepgen or something like
>a Mesa card to generate the step/dir pulses, and requires LinuxCNC to
>be running with 'reas
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On 2/1/2013 3:15 PM, Gregory Perry wrote:
>> The 100 mS 'hiccup' comes into play for anything running on Linux
>> (which is running on the ARM core) if you don't have help from
>> something like Xenomai or PREEMPT_RT.
>
> I understand all of those i
>The 100 mS 'hiccup' comes into play for anything running on Linux
>(which is running on the ARM core) if you don't have help from
>something like Xenomai or PREEMPT_RT.
I understand all of those issues, I've been working on getting Xenomai
integrated with the BeagleBone for a few months now for
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On 2/1/2013 2:51 PM, Gregory Perry wrote:
>> From: Charles
>> Steinkuehler [char...@steinkuehler.net] Sent: Friday, February
>> 01, 2013 3:40 PM To: EMC developers Cc: Gregory Perry Subject:
>> Re: [Emc-develope
>
>From: Gene Heskett [ghesk...@wdtv.com]
>Sent: Friday, February 01, 2013 3:48 PM
>To: emc-developers@lists.sourceforge.net
>Subject: Re: [Emc-developers] Python Library for the BeagleBone PRUSS
>
>On Friday 01 February 2013 15:43:58 Gregory Perry did opine:
>
>From: Charles Steinkuehler [char...@steinkuehler.net]
>Sent: Friday, February 01, 2013 3:40 PM
>To: EMC developers
>Cc: Gregory Perry
>Subject: Re: [Emc-developers] Python Library for the BeagleBone PRUSS
>
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>
On Friday 01 February 2013 15:43:58 Gregory Perry did opine:
Message additions Copyright Friday 01 February 2013 by Gene Heskett
> Forget using Xenomai or RT_PREEMPT on the BeagleBone, check this out:
>
> http://hipstercircuits.com/?p=349#comment-269
Sounds good. I assume you have a bone and ar
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On 2/1/2013 2:16 PM, Gregory Perry wrote:
> Forget using Xenomai or RT_PREEMPT on the BeagleBone, check this
> out:
>
> http://hipstercircuits.com/?p=349#comment-269
Yep...we're already using the PRU to do stepgen:
http://git.mah.priv.at/gitweb/emc2-
Forget using Xenomai or RT_PREEMPT on the BeagleBone, check this out:
http://hipstercircuits.com/?p=349#comment-269
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Forget using Xenomai or RT_PREEMPT on the BeagleBone, check this out:
http://hipstercircuits.com/?p=349#comment-269
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I'm working on reproducing Michael's BeagleBone+Xenomai+Ubuntu success
on Debian and ran into a minor snag.
When attempting to build LinuxCNC, linking fails when it gets to the
xenomai stuff:
Linking halstreamer
/usr/bin/ld: warning: libnative.so.3,
On Sunday 09 December 2012 17:50:22 dave wrote:
> On Sun, 2012-12-09 at 19:43 -0600, Jon Elson wrote:
> Zu hilfe! Zu hilfe! Zu hilfe!
This version does not fit the frequency(known, constant).
Joachim
// uses the lmfit library http://joachimwuttke.de/lmfit/
// used version is 3.4
// joachim.fra
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