Re: USB ports ?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, <salsaman59@s...> wrote:
>
> Well I have 18 e-mails about USB ports. The answer to my question
seems to
> be yes ,very well, but not quite yet. Is this somewhat right????
>
> Thank you all for a very enlightening thread
> salsaman59
> ----- Original Message -----
> From: "Mariss Freimanis" <mariss92705@y...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Friday, December 03, 2004 9:32 PM
> Subject: [CAD_CAM_EDM_DRO] Re: USB ports ?
>
>
> >
> >
> > I'm happy I'm finally back on it again. It's been 1 year and 12
days.
> > The time elapsed was spent designing the G204V Vampire drive; that
> > design was finally "put to bed" Wednesday.
> >
> > We had a little party here Wednesday nite when the gerber files
were
> > e-mailed to the board fabricators. In 2 weeks we get the first
1,000
> > board-sets and then the real fun begins.
> >
> > In the meantime I've been killing time writing the G204V user's
> > manual and generating 3D renderings of the solids model.
> >
> > Also I've been catching up with where I left off on the G2002,
> > cleaning up the schematic diagrams to get them spiffed-up enough
to
> > code into an FPGA. That is done and the coding has begun.
> >
> > The G2002 should progress very rapidly. I did a time chart for the
> > project; I'm shooting for a 4-month time frame to first article.
> >
> > An exciting prospect is the "unstallable stepper" idea the G2002
> > should make possible. A true closed-loop, real time encoder
feedback
> > stepper system.
> >
> > This coming year will be exciting.
> >
> > Mariss
> >
> >
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, Peter Homann <groups@h...>
> > wrote:
> >> Mariss,
> >>
> >> I should have realised you had it covered. :-)
> >>
> >> Peter.
> >>
> >> Mariss Freimanis wrote:
> >>
> >> >
> >> > Peter,
> >> >
> >> > Not a problem, 100mA is current to spare. The 100mA outputs are
> > open-
> >> > drain and diode clamped to the 24VDC power supply of your
choice.
> > You
> >> > supply the 24VDC to run your relays or whatever, that is not
> > taken
> >> > from the USB 5VDC.
> >> >
> >> > Mariss
> >> >
> >> >
> >> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, Peter Homann
> > <groups@h...>
> >> > wrote:
> >> >
> >> >>Hi Mariss,
> >> >>
> >> >>You will need to add an alternative power source, such as a
wall
> >> >
> >> > adapter
> >> >
> >> >>or other power supply. The USB specification imposes limits on
> >> >
> >> > current
> >> >
> >> >>draw. The host first recognizes any peripheral as a low-power
> >> >
> >> > device,
> >> >
> >> >>which is limited to less than 100 mA of current. The peripheral
> > can
> >> >
> >> > ask
> >> >
> >> >>the host to recognize it as a high-power device through a
process
> >> >
> >> > called
> >> >
> >> >>enumeration. Once enumeration is complete and permission is
> >> >
> >> > granted, the
> >> >
> >> >>peripheral current limitation increases to 500 mA.
> >> >>
> >> >>Even 500mA is not enough for 16 outputs at 100mA each, let
alone
> >> >
> >> > the
> >> >
> >> >>other power requirements of the G2002.
> >> >>
> >> >>Cheers,
> >> >>
> >> >>Peter.
> >> >>
> >> >>Mariss Freimanis wrote:
> >> >>
> >> >>>Hi,
> >> >>>
> >> >>>The G204V "Vampire" drive design is finished. The first 100
beta
> >> >>>units will be available at the beginning of January.
> >> >>>
> >> >>>That means I'm back on the G2002 (G2005?) project. The FPGA
for
> >> >
> >> > the
> >> >
> >> >>>design is being coded right now. In summary, the G2002 will
have:
> >> >>>
> >> >>>1) 6 axis of step / direction (up to 4 MHz step rate)
> >> >>>2) 6 axies of encoder feedback (CH-A, CH-B, Index and Fault)
> >> >>>3) 8 analog output channels (+/-10V, 0-5V)
> >> >>>4) 8 analog input channels (0-5V)
> >> >>>5) 16 general purpose outputs (5-24VDC, 100mA)
> >> >>>6) 16 general purpose inputs (+/- 100V protected)
> >> >>>7) USB interface, USB powered
> >> >>>
> >> >>>Mariss
> >> >>>
> >> >>>
> >> >>>
> >> >>>--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...>
> >> >
> >> > wrote:
> >> >
> >> >>>>R Rogers wrote:
> >> >>>>
> >> >>>>
> >> >>>>
> >> >>>>>Wasn't Art Fenerty working on a system like this for Mach2?
He
> >> >>>
> >> >>>referred to it as a "cube" or something like that? Basically a
> >> >
> >> > remote
> >> >
> >> >>>pulse generator. However, I understood it was to work from the
> >> >>>parallel port. Maybe he already released it and I'm unaware of
> >> >
> >> > it.
> >> >
> >> >>>>>
> >> >>>>Yes, hardware by Mariss Freimanis of Gecko Drives, called the
> >> >>>
> >> >>>G2002, I
> >> >>>
> >> >>>
> >> >>>>think. There is a group
> >> >>>>of people working on it. It runs through the USB, I believe.
> >> >>>>
> >> >>>>Jon
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>Addresses:
> >> >>>FAQ: http://www.ktmarketing.com/faq.html
> >> >>>FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> >> >>>Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
> >> >>>
> >> >>>Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> >> >>>Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> >> >>>List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com,
> >> >
> >> > wanliker@a..., timg@k...
> >> >
> >> >>>Moderator: pentam@c... indigo_red@q... davemucha@j...
> >> >
> >> > [Moderators]
> >> >
> >> >>>URL to this group:
http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> >> >>>
> >> >>>OFF Topic POSTS: General Machining
> >> >>>If you wish to post on unlimited OT subjects goto:
> >> >
> >> > aol://5863:126/rec.crafts.metalworking or go thru Google.com to
> > reach
> >> > it if you have trouble.
> >> >
> >> >>>http://www.metalworking.com/news_servers.html
> >> >>>
> >> >>>http://groups.yahoo.com/group/jobshophomeshop I consider
this
> >> >
> >> > to be a sister site to the CCED group, as many of the same
> > members
> >> > are there, for OT subjects, that are not allowed on the CCED
list.
> >> >
> >> >>>NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
> >> >
> >> > POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO
> >> > EXCEPTIONS........
> >> >
> >> >>>bill
> >> >>>List Mom
> >> >>>List Owner
> >> >>>
> >> >>>
> >> >>>Yahoo! Groups Links
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>>
> >> >>
> >> >>--
> >> >>---------------------------------------------------------------
---
> >> >>Web: www.homanndesigns.com
> >> >>email: homann@h...
> >> >>Phone: +61 421 601 665
> >> >>www.homanndesigns.com/DigiSpeedDeal.html - DC Spindle control
> >> >>www.homanndesigns.com/TurboTaig.html - Taig Mill Upgrade
board
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > Addresses:
> >> > FAQ: http://www.ktmarketing.com/faq.html
> >> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> >> > Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
> >> >
> >> > Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> >> > Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> >> > List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com,
> > wanliker@a..., timg@k...
> >> > Moderator: pentam@c... indigo_red@q... davemucha@j...
> > [Moderators]
> >> > URL to this group:
http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> >> >
> >> > OFF Topic POSTS: General Machining
> >> > If you wish to post on unlimited OT subjects goto:
> > aol://5863:126/rec.crafts.metalworking or go thru Google.com to
reach
> > it if you have trouble.
> >> > http://www.metalworking.com/news_servers.html
> >> >
> >> > http://groups.yahoo.com/group/jobshophomeshop I consider this
> > to be a sister site to the CCED group, as many of the same members
> > are there, for OT subjects, that are not allowed on the CCED list.
> >> >
> >> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
> > POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO
> > EXCEPTIONS........
> >> > bill
> >> > List Mom
> >> > List Owner
> >> >
> >> >
> >> > Yahoo! Groups Links
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >>
> >> --
> >> -----------------------------------------------------------------
-
> >> Web: www.homanndesigns.com
> >> email: homann@h...
> >> Phone: +61 421 601 665
> >> www.homanndesigns.com/DigiSpeedDeal.html - DC Spindle control
> >> www.homanndesigns.com/TurboTaig.html - Taig Mill Upgrade
board
> >
> >
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> > Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
> >
> > Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> > Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> > List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com,
wanliker@a...,
> > timg@k...
> > Moderator: pentam@c... indigo_red@q... davemucha@j...
> > [Moderators]
> > URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> >
> > OFF Topic POSTS: General Machining
> > If you wish to post on unlimited OT subjects goto:
> > aol://5863:126/rec.crafts.metalworking or go thru Google.com to
reach it
> > if you have trouble.
> > http://www.metalworking.com/news_servers.html
> >
> > http://groups.yahoo.com/group/jobshophomeshop I consider this
to be a
> > sister site to the CCED group, as many of the same members are
there, for
> > OT subjects, that are not allowed on the CCED list.
> >
> > NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY
POSTING THEM.
> > DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> > bill
> > List Mom
> > List Owner
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >