Am 28.02.2014 um 14:19 schrieb John Alexander Stewart <ivatt...@gmail.com>:
> Michael; > > Ah - grbl-like input. Makes sense, and I can see how it would not work so > well for LinuxCNC. > > The question, then, is how come Mach3 can have USB cabling, but LinuxCNC > can't? (see the KX* mills from Arc Eurotrade in the UK; now with USB input) I have no idea about that API uses over USB, but I'd be curious it depends at what level commands go over USB; for instance, Yishin's USB/FPGA product works on line segments afaict, and does spindle-sync on that board - I would think that be pretty hard if USB jitter were in the path for spindle-sync; in this case the stuff going over USB is lower granularity and queued so USB jitter doesnt have significant impact if you toggle raw stepper pins over USB, that's probably pushing it too much > Related: What commands are sent over the USB for these Mach3 boxes? any pointers? for Yishin's product, see http://en.araisrobo.com/ and https://github.com/araisrobo/linuxcnc and > Related,related: how can LinuxCNC get a larger slice of the 3D printer > market, now that the "Printrboard" style of controls, and associated > software is settling down for 3D'ers? by helping Charles with contributions ;) http://blog.machinekit.io - Michael > > John. > > > On Fri, Feb 28, 2014 at 4:14 AM, Michael Haberler <mai...@mah.priv.at>wrote: > >> correction: >> >> Am 28.02.2014 um 09:10 schrieb Michael Haberler <mai...@mah.priv.at>: >> >>> I could imagine a firmware solution which does the link between LinuxCNC >> and this board over SPI, like Gemi's picnc "outboard" - that would likely >> work a lot better >> >> I dont think an SPI-based firmware solution for this board like Gemi's >> picnc will work well. >> >> The reason is: As Gemi found out, SPI input on AVR's is hopeless - hard to >> avoid input overrun. I understand this is why Gemi used a PIC. >> >> - Michael >> >> >> >> ------------------------------------------------------------------------------ >> Flow-based real-time traffic analytics software. Cisco certified tool. >> Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer >> Customize your own dashboards, set traffic alerts and generate reports. >> Network behavioral analysis & security monitoring. All-in-one tool. >> >> http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > ------------------------------------------------------------------------------ > Flow-based real-time traffic analytics software. Cisco certified tool. > Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer > Customize your own dashboards, set traffic alerts and generate reports. > Network behavioral analysis & security monitoring. All-in-one tool. > http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
