Dave, PMDX is considering just such a product and is trying to figure out what things are needed for a "real" industrial control.
Meanwhile, we are actually working on a "cape" to be used as a test platform at Wichita. It will use the parallel port header approach along with other debugging stuff. It can be used together with PMDX-112/PMDX-111 debugging accessories, or it could simply be used as parallel ports to drive an existing breakout board. The design is based around a programmable logic device to minimize the impact of incorrect assumptions of how the Beagle Bone Black is pinned out and configured. Regards, Steve Stallings www.PMDX.com > -----Original Message----- > From: Dave [mailto:e...@dc9.tzo.com] > Sent: Sunday, April 28, 2013 9:23 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] ?Beaglebone LinuxCNC starterkit: > ready-to-run SD card image > > I disagree. > > If you want a killer product for the BeagleBone Black, you > need to toss > the EPP port concept entirely and have the BeagleBone Plug into the > Breakout board - similar to a cape. But make it larger and > put 24 volt > DC I/O on it, along with analog I/O, Encoder ins, and step > and direction > I/O. To me that would be an attractive package. I really dislike > 5volt I/O for field I/O. 24 volt DC I/O is much more reliable and is > the current industry standard. You could have two versions - one for > step and direction and another for Analog servo, but I think I would > design one board. > > The only reason anyone ever used the EPP LPT port was because it was > cheap and already part of the PC. > > I have no desire to reuse old BOBs and keep it "PC compatible". > > Dave > > > On 4/28/2013 8:57 PM, dave wrote: > > Considering the fact that good BOB's cost pretty much what > the B3 does > > being able to plug to current BOB's would be nice. > > > > Dave > > > > > > > > On Sun, 2013-04-28 at 14:55 -0700, Greg Bernard wrote: > > > >> I'm with Gene on this. For the short term, at least, > a parallel port adapter (or 2) would allow existing BOB's to > be used. But the ideal would be a dedicated cape that could > provide the functionality of a Mesa or Pico Systems board. > >> > >> > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > +++++++++++++++++ > >> "Anyone who believes exponential growth can go on forever > in a finite world is either a madman or an economist." > >> -Kenneth Boulding, economist > >> "How unfortunate that the Earth's first intelligent social > animal is a tribal carnivore" > >> -E.O. Wilson, sociobiologist > >> > >> > >> > >> > >> > >>> ________________________________ > >>> From: Gene Heskett<ghesk...@wdtv.com> > >>> To: emc-users@lists.sourceforge.net > >>> Sent: Sunday, April 28, 2013 4:40 PM > >>> Subject: Re: [Emc-users] ?Beaglebone LinuxCNC starterkit: > ready-to-run SD card image > >>> > >>> > >>> On Sunday 28 April 2013 17:29:54 Jon Elson did opine: > >>> > >>> > >>>> Eric Keller wrote: > >>>> > >>>>> On Sun, Apr 28, 2013 at 1:55 PM, Jon > Elson<el...@pico-systems.com> > >>>>> > >>> wrote: > >>> > >>>>>> Is there a consensus about BeagleBone vs. Raspberry Pi? > >>>>>> > >>>>> I think it's a no-brainer myself. I have a Raspi, but > I just don't > >>>>> see it competing with the bbb > >>>>> > >>>> OK, this was my take on the hardware, but there was so much RPi > >>>> discussion here, I thought that might be the way > development was headed. > >>>> I support the Beagle direction, too, and hope much of what I have > >>>> learned on the original Beagle will port over to the Bone. > >>>> > >>>> So, if I were going to make something for the Bone, should it be > >>>> like a PC parallel port, or some other kind of breakout board? > >>>> I'd like to make something that allows my parport-connected > >>>> devices to be used with the Bone, but maybe others would > >>>> rather have a much "wider" I/O device, maybe a couple > >>>> dozen inputs and outputs from the PRU-accessible pins. > >>>> > >>>> So, any thoughts would be welcome. > >>>> > >>>> Jon > >>>> > >>> Not that I have a dog in this fight Jon, I don't expect > to have to replace > >>> these atom's I bought anytime soon, but it seems to me it > should allow the > >>> more or less std 26 pin IDC connector to be used so it > could plug straight > >>> into our existing BOB's. Here of course I am assuming > the .hal file could > >>> put the right signals on the right pins. That generally > is up to us > >>> anyway. > >>> > >>> Perhaps 2 of the connectors on yours, for those with more > I/O needs than > >>> one EPP port can supply. But I haven't studied it well > enough to know if > >>> the PRU has enough I/O to fill up the 2nd connector. > That would be pure > >>> icing on the cake IMO if it did. > >>> > >>> Cheers, Gene > >>> -- > >>> "There are four boxes to be used in defense of liberty: > >>> soap, ballot, jury, and ammo. Please use in that order." > >>> -Ed Howdershelt (Author) > >>> My web page:<http://coyoteden.dyndns-free.com:85/gene> is up! > >>> My views > >>> > <http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml> > >>> There's so much plastic in this culture that vinyl leopard skin is > >>> becoming an endangered synthetic. > >>> -- Lily Tomlin > >>> A pen in the hand of this president is far more > >>> dangerous than 200 million guns in the hands of > >>> law-abiding citizens. > >>> > >>> > -------------------------------------------------------------- > ---------------- > >>> Try New Relic Now& We'll Send You this Cool Shirt > >>> New Relic is the only SaaS-based application performance > monitoring service > >>> that delivers powerful full stack analytics. Optimize and > monitor your > >>> browser, app,& servers with just a few lines of code. > Try New Relic > >>> and get this awesome Nerd Life shirt! > http://p.sf.net/sfu/newrelic_d2d_apr > >>> _______________________________________________ > >>> Emc-users mailing list > >>> Emc-users@lists.sourceforge.net > >>> https://lists.sourceforge.net/lists/listinfo/emc-users > >>> > >>> > >>> > >>> > >> > -------------------------------------------------------------- > ---------------- > >> Try New Relic Now& We'll Send You this Cool Shirt > >> New Relic is the only SaaS-based application performance > monitoring service > >> that delivers powerful full stack analytics. Optimize and > monitor your > >> browser, app,& servers with just a few lines of code. Try > New Relic > >> and get this awesome Nerd Life shirt! > http://p.sf.net/sfu/newrelic_d2d_apr > >> _______________________________________________ > >> Emc-users mailing list > >> Emc-users@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/emc-users > >> > > > > > > > -------------------------------------------------------------- > ---------------- > > Try New Relic Now& We'll Send You this Cool Shirt > > New Relic is the only SaaS-based application performance > monitoring service > > that delivers powerful full stack analytics. Optimize and > monitor your > > browser, app,& servers with just a few lines of code. Try New Relic > > and get this awesome Nerd Life shirt! > http://p.sf.net/sfu/newrelic_d2d_apr > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > -------------------------------------------------------------- > ---------------- > Try New Relic Now & We'll Send You this Cool Shirt > New Relic is the only SaaS-based application performance > monitoring service > that delivers powerful full stack analytics. Optimize and monitor your > browser, app, & servers with just a few lines of code. Try New Relic > and get this awesome Nerd Life shirt! > http://p.sf.net/sfu/newrelic_d2d_apr > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, & servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
