paul_c wrote:
>On Thu, 15 Feb 2007 [EMAIL PROTECTED] wrote:
>
>
>>>At present, EMC has a driver (by PeteV) that supports a single
>>>configuration. That one config is stored as part of the EMC source code,
>>>in both VHDL and binery form - binary because most people don't have the
>>>Xilinx soft
Peter C. Wallace wrote:
>
>In other words the host filling the FIFOs knows exactly how many
>(whole+fractional) steps are output each frame.
>
>
>
OK, I guess I'm not clear on what is between the CPU and the DDS. If
the computer
was just placing a new value in the addend register of the DDS,
On Thu, Feb 15, 2007 at 11:16:59AM -0800, richard harris wrote:
> Hello,
>
> Thinking of using emc to operate a gang lathe, before I attempted it was
> interested in hearing ideas on setting up tools with emc. I would like my g
> code to simply say t2 and emc to know that t2 is set such a dist
On Fri, 16 Feb 2007, paul_c wrote:
> Date: Fri, 16 Feb 2007 00:56:15 +
> From: paul_c <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] 5i20 step generators
>
> On Thu, 15 Feb 2007 [EMAIL PROTECTED]
On Thu, 15 Feb 2007 [EMAIL PROTECTED] wrote:
> > At present, EMC has a driver (by PeteV) that supports a single
> > configuration. That one config is stored as part of the EMC source code,
> > in both VHDL and binery form - binary because most people don't have the
> > Xilinx software installed, an
On Thu, 15 Feb 2007, Jon Elson wrote:
> Date: Thu, 15 Feb 2007 15:53:16 -0600
> From: Jon Elson <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Hardware step generator for 5I20
>
> [EMAIL PROTECTED]
Jon Elson <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] wrote:
>
>>Jon Elson's boards use the servo scheme - his step outputs are sent to
>>an encoder counter as well as to the drive, and the encoder counter
>>feedback is used to close the loop.
>
> It seems to me you HAVE to do this. Unle
[EMAIL PROTECTED] wrote:
>Jon Elson's boards use the servo scheme - his step outputs are sent to
>an encoder counter as well as to the drive, and the encoder counter
>feedback is used to close the loop.
>
>
>
It seems to me you HAVE to do this. Unless the clock of the FPGA is somehow
linked to
On Thursday 15 February 2007, Peter C. Wallace wrote:
>On Thu, 15 Feb 2007, Gene Heskett wrote:
>> Date: Thu, 15 Feb 2007 15:44:32 -0500
>> From: Gene Heskett <[EMAIL PROTECTED]>
>> Reply-To: "Enhanced Machine Controller (EMC)"
>>
>> To: emc-users@lists.sourceforge.net
>> Cc: Jon Elson <[EMAIL
they are strictly talking about using quadrature instead of step-direction
as the interface between the card and the stepper drive.. Instead of the
direction pin designating which direction the stepper would go - it looks at
which signal rises or falls first. Very noise tollerant.
Same way yo
On Thu, 15 Feb 2007, Gene Heskett wrote:
> Date: Thu, 15 Feb 2007 15:44:32 -0500
> From: Gene Heskett <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: emc-users@lists.sourceforge.net
> Cc: Jon Elson <[EMAIL PROTECTED]>
> Subject: Re: [Emc-users] Hardware step genera
I apologise for forwarding this to the list but my email to you bounced...
Subject: Re: 5i20 step generators, and other goodies
On Thu, 15 Feb 2007 [EMAIL PROTECTED] wrote:
> Date: Thu, 15 Feb 2007 19:33:30 +
> From: [EMAIL PROTECTED]
> To: [EMAIL PROTECTED]
> Subject: 5i20 step generator
On Thursday 15 February 2007, Jon Elson wrote:
>[EMAIL PROTECTED] wrote:
>>"Peter C. Wallace" <[EMAIL PROTECTED]> wrote:
>>>Step/DIR or quadature output selectable per generator.
>
>My UPC has had quadrature output available since I developed it. I
>don't think more
>than one user actually used th
On Thu, 15 Feb 2007, Eric H. Johnson wrote:
> Date: Thu, 15 Feb 2007 15:07:17 -0500
> From: Eric H. Johnson <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "'Enhanced Machine Controller (EMC)'"
> Subject: Re: [Emc-users] Hardware step generator for 5I20
>
> Pete
Me, too.
I'm looking at converting my lathe to a CNC gang lathe (sort of like the
Omniturn).
I will use EMC for it.
By the time I'm done, I will be able to do what you suggest. (I don't know
the current state). Since I've just begun collecting parts, though, I
can't say when I'll be done. :-(
"Peter C. Wallace" wrote:
>>> Finally had a bit of free time to work on this. Still needs testing and
>>> more
>>> features but here whats there so far:
>>
>> Is the VHDL for this going to be made available under the GPL? If so, I'm
>> interested in writing the HAL driver for it.
>
> Yes
Peter,
Great news. Will you be able to intermix steppers and PWMs on a single
board? If I understand correctly your statement on PWM, that should be
adequate for my needs. For my immediate project, I need three axes of
steppers and one unidirectional PWM (no encoder) with a frequency between
5Khz
Hello,
Thinking of using emc to operate a gang lathe, before I attempted it was
interested in hearing ideas on setting up tools with emc. I would like my g
code to simply say t2 and emc to know that t2 is set such a distance from the
home switch on the x axis.
Thanks
---
Hi
From: <[EMAIL PROTECTED]>
> "Peter C. Wallace" <[EMAIL PROTECTED]> wrote:
>
>
> On the step/dir side: some drives require setup and/or hold times for the
> dir line with respect to the step line. Others have minumum step pulse
> lengths. Do the generators support this? Min pulse length isn't
On Thu, 15 Feb 2007 [EMAIL PROTECTED] wrote:
> Date: Thu, 15 Feb 2007 18:17:09 +
> From: [EMAIL PROTECTED]
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "Enhanced Machine Controller (EMC)"
> Subject: Re: [Emc-users] Hardware step generator for 5I20
>
> "Peter C. Wallace" <[EM
[EMAIL PROTECTED] wrote:
>"Peter C. Wallace" <[EMAIL PROTECTED]> wrote:
>
>
>
>>Step/DIR or quadature output selectable per generator.
>>
>>
>
>
>
My UPC has had quadrature output available since I developed it. I
don't think more
than one user actually used the feature, and he was usin
"Peter C. Wallace" <[EMAIL PROTECTED]> wrote:
> Finally had a bit of free time to work on this. Still needs testing and more
> features but here whats there so far:
Is the VHDL for this going to be made available under the GPL? If so, I'm
interested in writing the HAL driver for it.
> 12 ste
The var file is read at startup. It is written out to disk on shutdown.
Tests here suggest that it is re-read after an abort so if you have
changed or incremented a value within the program before an abort, the
value will revert to that held in the var file rather than the current
value when the
Finally had a bit of free time to work on this. Still needs testing and more
features but here whats there so far:
12 step gens. Each stepgen is 28 bit DDS + FIFO + preset/residue clear logic
Step gens overlaid on basic I/O port, Step generators can be individually
enabled, or I/O pins left as
On Thu, Feb 15, 2007 at 04:16:15PM +0100, Micha? Geszkiewicz wrote:
> I'm using now EMC2 2.1 with axis interface.
> Configuration is writable.
> I'm also wonder if the *.var file is readed each time I press start button or
> once on start of EMC2.
>
> Thanks
>
> Michal
Ok I bet ray has hit on
I'm using now EMC2 2.1 with axis interface.
Configuration is writable.
I'm also wonder if the *.var file is readed each time I press start button or
once on start of EMC2.
Thanks
Michal
Dnia 15-02-2007 o godz. 16:04 Chris Radek napisał(a):
> On Thu, Feb 15, 2007 at 01:33:59PM +0100, Micha? Ges
Hi Michael
My understanding of this is based on EMC from several years ago. You
will want to test this.
If I added the variables to the .var file like this
10005.124
10011.3516
before startup of the EMC it would accept them in part programs and
would save values there when the system s
On Thu, Feb 15, 2007 at 01:33:59PM +0100, Micha? Geszkiewicz wrote:
> Hello
>
> I often use variables in emc2. Problem is than they are zeroing after stop
> button click.
> Is there any way to avoid this or to extract variables from emc2 while it is
> in auto mode before
> is executed command em
Hello
I often use variables in emc2. Problem is than they are zeroing after stop
button click.
Is there any way to avoid this or to extract variables from emc2 while it is in
auto mode before
is executed command emc.command.abort() witch clears the variables.
Thanks,
Michael
---
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