> -----Original Message----- > From: Jon Elson [mailto:el...@pico-systems.com] > Sent: June-13-19 6:36 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] LinuxCNC Processor > > On 06/13/2019 11:15 AM, John Dammeyer wrote: > > We've been discussing various kinds of modules to make a dedicated > LinuxCNC processor. This may just be it. > > https://beagleboard.org/blog/2019-05-16-beaglebone-ai-preview > > > > https://beagleboard.org/ai > > > > With 4 PRUs to deal with the hardware the biggest issue might be access to > enough pins to do everything one needs. > > > > > I don't know, the existing Beagle Bone Black seems to do a > heck of a lot with just 2 PRU's. > I think Charles Steinkuehler's code actually only uses one > of them, but I could be wrong. > > Yes, even with those big connectors, one could always use > more I/O pins. > > Jon > > The new bare bones Xylotex cape for the Beagle is an honest parallel port emulator with no restrictions on enable for active low or high switches.
And it doesn't look like they used the CAN bus pins which means for any I/O that doesn't need instant response (like a tool changer etc.) patching a CAN driver onto it and adding CANopen support and RS485 for MODBUS on a serial port would provde plenty of expansion without running scads of wires back to the central cabinet. And at $25 it's inexpensive enough to order one to play with. John _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
