Hi John, Just another thought, you may be able to communicate with this device using the mb2hal component. I haven't tried using the RS-485 or RS-232 interface but I have had some luck with with tcp. I know this is applicable to your issue but just a comment on the fact that it does work. I'm still toying with the idea of using modbus for some extra I/O.
I don't know whether the xylotex exposes the pins needed to use the eQEP on the beaglebone or the PRU pins needed for PRU driver. The cape & I\O boards I'm working on have the eQEP2 pins exposed. The eQEP driver is pretty simple to use.......All of this is probably not much good to you as I guess you'd have spent a good pile of Beer Tokens on the Modio card. The only issue I'd see with using mb2hal is finding how the 32 bit values are sent (ie big or little endian) then combining them into a 32 bit signed value. I did a bit of a play around with a component that converts the 16 bit numbers into a 32 bit signed value......At least on the arduino setup I experimented with using modbus over tcp. Rob On Monday, October 9, 2017 at 11:39:17 AM UTC+11, John Dammeyer wrote: > > Hi, > I'm running the BBB with a Xylotex DB-25 Cape driving Servos. I've also > got a Homann Designs MODIO that could work as an MPG. The web site: > http://wiki.linuxcnc.org/cgi-bin/wiki.pl?ModIO > has drivers for LinuxCNC from 2012 which is a while ago now. > A search of MachineKit group doesn't have any hits for MODIO so I'm > wondering if it's possible to add this device to a Beagle running > MachineKit. > Thanks > John > -- 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. Visit this group at https://groups.google.com/group/machinekit. For more options, visit https://groups.google.com/d/optout.
