The software stepgen enable has no effect on the output of the stepgen's phase pins. And I want to be sure to be able to prevent any signal of any kind before Linuxcnc is started. (I have a feeling that having 2 or more of the wrong phases enabled at the same time might be very bad.) Also the existing old system disables the output to the Z-axis for adjusting the depth, and I think the users who are used to working that way might want to retain that function.
Todd Zuercher P. Graham Dunn Inc. 630 Henry Street Dalton, Ohio 44618 Phone: (330)828-2105ext. 2031 -----Original Message----- From: Gene Heskett <ghesk...@shentel.net> Sent: Wednesday, August 29, 2018 10:39 AM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] Parallel Port On Wednesday 29 August 2018 10:02:49 Todd Zuercher wrote: > An update, I tested the parallel port card in Windows and it seems to > work there with the supplied drivers. The control pins will output 3v > and I can toggle them on/off. So that means it must simply be a > compatibility problem with this card and Linuxcnc's parallel port > driver. > > If anyone has any ideas how to fix it I'm open to suggestions. > > As to switching to a Mesa card, I had looked into it, but because in > this particular application, because I am using a couiple of parallel > ports to directly toggle the transistors running some unipolar step > motors (stepgen type-9) and the old setup I'm replacing uses 24v > signals to do it. It looked like it would be simpler to use software > stepping rather than an FPGA card. > > Oh well, I think I can make due without using those pins anyway (there > are enough outputs I only need 14), but it would have been simpler if > they were working. (I wanted to put all the step motor signals on one > breakout board, then enable/disable that boards outputs with the other > board. Now I'll have to have both boards enabled all the time, and > use another means to kill the outputs to the drivers. Sounds hairy. How about a bank of transistors to do the 3v-24 volt translations between the 5i25's bobs and the unipolar drivers? You mention a dual port and the 5i25 comes to mind. Separating the voltage translations from the functions IOW. It is 2 separate problems. And just one of the reasons for my staying as far away as I can from 6 wire motors, in favor of bipolar, 4 or 8 wire motors. I don't care for the double the supply voltage coming back from the unipolar motor when that leg is off. But you are already built, so changing that now isn't practical from the $$$ point of view. As for disabling, which I assume would leave the motors free-wheeling, does the stepgen.N.enable not stop all drive outputs when disabled in a type 9 setting? That way its in the halfile, not by a bit from a 2nd port and BOB. I think I'd want it stopped and locked so as to maintain its home position. I'm probably just noise, carrying coal TO Newcastle. :) > Todd Zuercher > P. Graham Dunn Inc. > 630 Henry Street > Dalton, Ohio 44618 > Phone: (330)828-2105ext. 2031 > > -----Original Message----- > From: Gene Heskett <ghesk...@shentel.net> > Sent: Tuesday, August 28, 2018 11:37 AM > To: emc-users@lists.sourceforge.net > Subject: Re: [Emc-users] Parallel Port > > On Tuesday 28 August 2018 09:25:17 Todd Zuercher wrote: > > I have done a fair bit of testing, and pins (1,14,16,17) work as > > inputs in X mode, they don't output any voltage in the other modes, > > but their resistance to ground does change in those modes, so > > something is happening. All the other pins seem to work fine. My > > loadrt line in hal is : > > loadrt hal_parport cfg="0xe030 out 0xe010 out" > > Using loadrt hal_parport cfg="0 out 1 out" gives the same results. > > If I try to use loadrt hal_parport cfg="0xe030 epp 0xe010 epp" I get > > two warning popups "Linux parallel port @65535 not found" and hal > > shows pins for 4 parallel ports, but only port 0 seems to work. > > > > lspci -v > > > > 06:00.0 Parallel controller: MosChip Semiconductor Technology Ltd. > > PCI 9865 Multi-I/O Controller (prog-if 03 [IEEE1284]) Subsystem: > > Device a000:2000 > > Flags: bus master, medium devsel, latency 32, IRQ 19 > > I/O ports at e030 [size=8] > > I/O ports at e020 [size=8] > > Memory at fe503000 (32-bit, non-prefetchable) [size=4K] > > Memory at fe502000 (32-bit, non-prefetchable) [size=4K] > > Capabilities: <access denied> > > Kernel driver in use: parport_pc > > Kernel modules: parport_pc > > > > 06:00.2 Parallel controller: MosChip Semiconductor Technology Ltd. > > PCI 9865 Multi-I/O Controller (prog-if 03 [IEEE1284]) Subsystem: > > Device a000:2000 > > MosChip, by several name variations, has been found wanting back in > the mists of time, failing to do an adequate job in the epp mode, both > by me and others on this list. I had good luck with startech parport > boards at the time. But now I'm down to just one x86 machine w/o a > mesa 5i25 in it. The 5i25, with decent motor voltage, can move the > machine 3-8x faster than software stepping. It and the Sainsmart bob > make a good, no or very minimal mods required, depending on how fast > the encoder for spindle speed is. > > > Flags: bus master, medium devsel, latency 32, IRQ 17 > > I/O ports at e010 [size=8] > > I/O ports at e000 [size=8] > > Memory at fe501000 (32-bit, non-prefetchable) [size=4K] > > Memory at fe500000 (32-bit, non-prefetchable) [size=4K] > > Capabilities: <access denied> > > Kernel driver in use: parport_pc > > Kernel modules: parport_pc > > > > The output from "cat /proc/ioports |grep parport" is a bit odd. In > > that it doesn't give any actually usable memory addresses ~$ cat > > /proc/ioports |grep parport > > 0000-0000 : parport1 > > 0000-0000 : parport1 > > 0000-0000 : parport0 > > 0000-0000 : parport0 > > > > Is it possible I damaged the card by testing it in X mode or that > > there is something wrong with the Cnc4pc C80 breakout boards I'm > > trying to use that wrecked them? (I used a 470ohm resister to probe > > the port terminals to test with.) Or is it more likely that this > > card never really worked right. > > No experience with that particular BOB. > > > Todd Zuercher > > P. Graham Dunn Inc. > > 630 Henry Street > > Dalton, Ohio 44618 > > Phone: (330)828-2105ext. 2031 > > > > -----Original Message----- > > From: Jon Elson <el...@pico-systems.com> > > Sent: Monday, August 27, 2018 9:07 PM > > To: Enhanced Machine Controller (EMC) > > <emc-users@lists.sourceforge.net> Subject: Re: [Emc-users] Parallel > > Port > > > > On 08/27/2018 12:38 PM, Todd Zuercher wrote: > > > I have a duel port PCIe parallel port card that I am trying to use > > > in an application, but I'm having a little trouble. > > > > > > My problem is that I can't seem to use the pins in the control > > > groupe (1,14,16,17) as outputs in the normal "out" or "in" > > > configurations. When set up as out or in those pins seem to be > > > dead. If I configure the port in X mode they do work as inputs. > > > I am at a bit of a loss with what to do. I am afraid that the > > > breakout board I was trying to use might have messed up the > > > parallel port card, so I'm a little afraid to plug it into a known > > > good working machine. > > > > Well, first thing is to put some LEDs on the outputs and use a par > > port test program to see what is going on. Some boards have several > > modes (SPP, BiDir, EPP, ECP) that turn different driver strengths > > on. And, probably some of these PCIe clone cards may just not work > > completely. I am most involved with EPP mode, and there certainly > > are some cards out there that just don't work. Also, some cards are > > totally non-standard register arrangement, and will only work with > > the maker's Windows driver supplied on a disc. > > > > Jon > > > > > > -------------------------------------------------------------------- > >-- -------- Check out the vibrant tech community on one of the > >world's most engaging tech sites, Slashdot.org! > > http://sdm.link/slashdot > > _______________________________________________ Emc-users mailing > >list Emc-users@lists.sourceforge.net > >https://lists.sourceforge.net/lists/listinfo/emc-users > > > > -------------------------------------------------------------------- > >-- -------- Check out the vibrant tech community on one of the > >world's most engaging tech sites, Slashdot.org! > > http://sdm.link/slashdot > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > -- > Cheers, Gene Heskett > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author) > Genes Web page <http://geneslinuxbox.net:6309/gene> > > ---------------------------------------------------------------------- >-------- Check out the vibrant tech community on one of the world's >most engaging tech sites, Slashdot.org! http://sdm.link/slashdot >_______________________________________________ Emc-users mailing list >Emc-users@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/emc-users > > ---------------------------------------------------------------------- >-------- Check out the vibrant tech community on one of the world's >most engaging tech sites, Slashdot.org! http://sdm.link/slashdot >_______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users -- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
