Hi, since we are having extensive talk about this kind of hardware - did anybody spare any thought to EtherCAT slave device which would be useful for home machine integrator/retrofiter? (Some basic IO, encoder counters, analog signal output generation and step/dir signals output [in one or two devices] - basically what MESA sells mostly to LinuxCNC crowd.)
My fancy taken me to XMC4800 from Infineon or LAN9252 from Microchip, there is even OpenSource project: https://github.com/DieBieEngineering/DieBieSlave - however the author overdid it with layers and it would still need another board. Cern. Mar 4, 2020, 07:21 by jo...@autoartisans.com: > > This is the only viable PIC32 is since it has the QEP module and PWM for > motor control. > > https://www.microchip.com/wwwproducts/en/PIC32MK1024MCF064 > > > Unfortunately not Ethernet. > > > > > > John > > > > > > "ELS! Nothing else works as well for your Lathe" > > > Automation Artisans Inc. > > > http://www.autoartisans.com > > > > > > > > > > > > > > > From:> machinekit@googlegroups.com [mailto:machinekit@googlegroups.com] > On > Behalf Of > justin White > Sent:> March-03-20 6:50 PM > To:> Machinekit > Subject:> Re: [Machinekit] Re: PICnc with Machine Kit. > > > > > Yep, > > > > > > > Actually I misspoke anyway, the PICnc never got an encoder module and the PWM > stuff was "being worked on" so it's strictly a Stepgen/gpio project where it > stalled. > > On Tuesday, March 3, 2020 at 9:22:44 PM UTC-5, John Dammeyer wrote: > > > > Hi Justin, > > > Clearly we're on different pages. > > > Thanks for your input. > > > John > > > > > > > > > From:> > machi...@googlegroups.com <>> [mailto:> machi...@googlegroups.com > <>> ] > On Behalf Of > justin White > Sent:> March-03-20 5:35 PM > To:> Machinekit > Subject:> Re: [Machinekit] Re: PICnc with Machine Kit. > > > > >> >> I thought I was quite clear about this. >> >> > > Not at all, probably because you are misunderstanding the purpose of the > hardware you are mentioning in this post. > > > > > >> >> This PICnc version requires Ethernet. LinuxCNC through a MESA Ethernet >> 7i92H or MACH3-4 through an Ethernet Smooth Stepper control hardware. I am >> going to guess that the MESA driver for the 7i92H also exists for MachineKit. >> >> > > You want to run "mesa" ethernet from the 7i92H on the PICnc? Doesn't sound > easy and I doubt there is anything specific about the 7i92 in the hm2_eth > driver other than the fact that the board types are probably added to the > driver as they are released. MK is well behind LCNC in Mesa drivers so no > idea if it works....you should probably test it. Mesa cards don't run at all > on windows with the hostmot2 firmware that the MK/LCNC projects interface > with, and nobody around here can use a "smooth stepper" because of the > architectural differences between Linux Preempt kernels and the Windows way > of doing things. Windows devices tend to buffer things in hardware to avoid > RT requirements, which is why USB hardware is a thing in Windows and not > Linux. The "Linux way" is to run in a RT capable kernel and minimize the > "load" by having the hardware do the heavy lifting, but it is still pegged in > real-time. > > > > > > So you're hardware is not going to just be compatible with both, there is > very little that is as it stands. This is probably not the place to discuss > your Mach3/4 Windows needs (it's making me cringe just thinking about it). > Mesa does however have a "SoftDMC" firmware that is meant for WIndows > applications. An FPGA is far more versatile than a micro so there may be > something you can do with that, but SoftDMC will not run under LinuxCNC and I > seriously doubt anyone here knows much about it. > > > > > >> >> The MESA board I have has the stepping-PWM engines implemented in an FPGA. >> >> > > They all do, it's part of hostmot2 firmware, as are the encoder, Smart serial > and a few other firmware modules. > > > > > >> >> What I´d like, but what may not be possible, is to replace the MESA 7i92H >> with the updated PICnc. >> >> >> >> >> > > They functionally do the same exact thing. The PICnc is doing the stepgen, > encoder, PWM stuff as firmware modules in the micro as well. The difference > is ethernet, support, and an FPGA vs SPI, a dead project, and a micro > > > > > >> >> If indeed the stepping engine is now within the PIC as well as the spindle >> quadrature etc..... >> >> > > It is > > > > > >> >> and the board is in effect the Break Out Board for the machine then there is >> absolutely no reason you can´t have a single input serve as a local-remote >> switch. In remote it behaves like, say a MESA 7i92H and the buttons and >> display appear to behave like a pendent on LinuxCNC. In local it´s a DRO & >> PowerFeed machine controller with a bunch of useful buttons to simplify >> manual operation. >> >> > > That's not going to happen like you want it to, unless you are capable of > writing complex firmware. Your best bet is to abandon the PICnc thing for > what you want to do and call Mesa. Hostmot2 is "host-based-motion-control" it > only runs with a host i.e. LinuxCNC. SoftDMC is something completely > different and like I said, it's never really discussed in the Linux world. > The Mesa cards generally have 2 EPROMs and one can contain Hostmot2 firmware > and the other SoftDMC. SoftDMC may possibly be able to run by itself and take > care of your "local" thing....I don't know. > > > > > >> >> Now maybe this won't be possible without also having an FPGA duplicate what >> is done with say the 792H. >> >> >> Maybe this won't be possible at all with MachineKit. >> >> > > The PICnc already does functionally what the 7i92 does, just alot less of it > and over spi. > > > > > > The PICnc sounded interesting as I've never heard of it before. the board > isn't very interesting and the micro is too small, but the fact that the > original designer made firmware and drivers for it makes it something viable > for resurrection, with SPI IMO. > > > > > > Honestly your intended use doesn't sound very interesting at all because it > requires way too much non-existent configuration and what you are actually > trying to do is SUPER EASY just using an Rpi and a 7C80, 7C81, the original > picnc...whatever. A DE10-Nano running MKSOCFPGA would do it all day. > > > > > > I'm all in for a Rpi based SPI Resurrection of the original PICnc. > > > > > > > > > > > > > > > > > > > -- > website: > http://www.machinekit.io> blog: > http://blog.machinekit.io> > github: > https://github.com/machinekit > --- > You received this message because you are subscribed to the Google Groups > "Machinekit" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to > machi...@googlegroups.com <>> . > To view this discussion on the web visit > > https://groups.google.com/d/msgid/machinekit/8da44c79-f44c-4aa1-ba94-b8185fe1bdf8%40googlegroups.com > > <https://groups.google.com/d/msgid/machinekit/8da44c79-f44c-4aa1-ba94-b8185fe1bdf8%40googlegroups.com?utm_medium=email&utm_source=footer>> > . > > > > > -- > website: > http://www.machinekit.io> blog: > http://blog.machinekit.io> > github: > https://github.com/machinekit > --- > You received this message because you are subscribed to the Google Groups > "Machinekit" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to > machinekit+unsubscr...@googlegroups.com> . > To view this discussion on the web visit > > https://groups.google.com/d/msgid/machinekit/fa1ca289-f15b-422a-b875-cb7ead005dbe%40googlegroups.com > > <https://groups.google.com/d/msgid/machinekit/fa1ca289-f15b-422a-b875-cb7ead005dbe%40googlegroups.com?utm_medium=email&utm_source=footer>> > . > > > > > > -- > website: > http://www.machinekit.io> blog: > http://blog.machinekit.io> > github: > https://github.com/machinekit > --- > You received this message because you are subscribed to the Google Groups > "Machinekit" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to > machinekit+unsubscr...@googlegroups.com> . > To view this discussion on the web visit > > https://groups.google.com/d/msgid/machinekit/02e601d5f1ed%2422020ac0%2466062040%24%40autoartisans.com > > <https://groups.google.com/d/msgid/machinekit/02e601d5f1ed%2422020ac0%2466062040%24%40autoartisans.com?utm_medium=email&utm_source=footer>> > . > -- website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit --- You received this message because you are subscribed to the Google Groups "Machinekit" group. To unsubscribe from this group and stop receiving emails from it, send an email to machinekit+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/machinekit/M1_gZGE--3-2%40tuta.io.
