On Tuesday 26 February 2019 10:59:14 wi...@erste.de wrote:
> hi again,
>
> Am 26.02.19 um 16:15 schrieb TJoseph Powderly:
> > very interesting
> > i use RPi3B with LinuxCNC and rt-preempt, headless over wired
> > ethernet
>
> thanks for this feedback!
>
> I know, that it is possible to run
hi chris,
Am 26.02.19 um 18:25 schrieb Chris Radek:
> Have you considered the quadrature scheme, mode 2?
no, not until now ;-)
> It has the same
> benefit of one edge per step, but does not have the drawbacks
> requiring consideration of setup and hold times (the dirsetup and
> dirhold
On 02/26/2019 10:52 AM, andy pugh wrote:
On Tue, 26 Feb 2019 at 14:24, wrote:
the driver works (with both devices). but is not ready and
not optimized.
at the moment, the raspberry can drive 5-6kHz with an unpatched
and 10-12kHz with a patched stepgen. (and I think, much more
is possible)
If
On Tue, Feb 26, 2019 at 06:21:13PM +0100, wi...@erste.de wrote:
> the second idea was: using both edges of a binary signal
> for motor stepping doubles the speed or bisects the bandwidth.
>
> but I found no way to do this, without patching stepgen.c
Have you considered the quadrature scheme,
at the moment, the raspberry can drive 5-6kHz with an unpatched
and 10-12kHz with a patched stepgen. (and I think, much more
is possible)
I want a cheap and easy to get and easy to handle IO-device.
not only for mills and other machines. for education this also
may be interesting.
Not really
hi again,
Am 26.02.19 um 16:15 schrieb TJoseph Powderly:
> very interesting
> i use RPi3B with LinuxCNC and rt-preempt, headless over wired ethernet
thanks for this feedback!
I know, that it is possible to run linuxCNC on raspi itself. I build
one some years ago (http://erste.de/cerec1.avi)
I
> -Original Message-
> From: wi...@erste.de [mailto:wi...@erste.de]
> Sent: Tuesday, February 26, 2019 9:23 AM
> To: EMC developers; Gene Heskett
> Subject: Re: [Emc-developers] raspberry/arduino driver - include in
LinuxCNC?
>
> Am 26.02.19 um 13:49 schrieb G
Am 26.02.19 um 13:49 schrieb Gene Heskett:
> What is it you are trying to do that can't be done already?
I want to use a raspberry or an arduino as multi-IO-boards.
connected via ethernet.
I'm already doing so:
http://erste.de/rasPiCat.html
the driver works (with both devices). but is not ready
On Tuesday 26 February 2019 06:43:29 wi...@erste.de wrote:
> hi again,
>
> > I think you are looking for 'double step'
> > This idea is a single edge trigger
> > ___ ___
> > __| or |___
> >
> > the trigger creates a complete step
> > ___
> > __| |___
>
> I've tried it with a
hi again,
> I think you are looking for 'double step'
> This idea is a single edge trigger
> ___ ___
> __| or |___
>
> the trigger creates a complete step
> ___
> __| |___
I've tried it with a reset-function inside my
component - but what sounds like a good idea, does not
hi andy,
hi tjoseph,
- doublestep -
of course, I had not seen this this option.
this gives me an idea, how to implement this feature
without any changes in stepgen.
(but yesterday, it was the easiest way to test it)
I will try it.
thanks a lot ;-)
wicki
Am 26.02.19 um 01:44 schrieb
On Mon, 25 Feb 2019 at 23:40, wrote:
> instead of using a low-high-low square. it is able to use
> a rising or falling edge and "translate" it into a low-high-low
> square (for the TA6600 as an example).
This sounds a lot like the already-supported "reset" function in the
parport driver (I can
Am 25.02.19 um 23:07 schrieb andy pugh:
> Is this definitely not a type that can be supported by the existing 14
> patterns?
yes, it is so
(or I am to blind, to see it)
> If so, what is it?
I'll try to explain it:
the signal at the output-pin is a square - in every type.
because a usual
On Mon, 25 Feb 2019 at 18:52, wrote:
> Therefore I also changed a few lines in steppgen.c.
> I want to include a new stepgen-type.
Is this definitely not a type that can be supported by the existing 14
patterns?
If so, what is it?
I am a bit unclear what you mean by "Raspberry / Arduino
Hi all,
since several weeks I'm developing and testing a driver-package for
Raspberry and Arduino.
In my last test today I got 12kHz-Stepper frequency with a Raspberry.
http://erste.de/ethraw/raspberry_ethraw.12kHz.jpg
Therefore I also changed a few lines in steppgen.c.
I want to include a new
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