On Thu, 30 May 2013, Andrew wrote: > Date: Thu, 30 May 2013 17:46:32 +0300 > From: Andrew <[email protected]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: "Enhanced Machine Controller (EMC)" <[email protected]> > Subject: Re: [Emc-users] Olinuxino/Beagleboard/bone, Xenomai, SPI? > > 2013/5/30 Michael Haberler <[email protected]> > >> can you refer to some reference implementation? >> >> never heard of it, how widely is that used? >> > > Pretty wide among modern absolute encoders, which are expensive and > therefore not so familiar for hobbyists. > > 2013/5/30 Dave <[email protected]> > >> BISS and SSI encoders are quite popular for absolute encoders. I have >> used a number of SSI encoders. BISS is a newer standard. >> >> I have an customer application for an SSI interface (hydraulic >> positioner) and Peter gave me a 7i43 config that will accept the raw SSI >> serial interface but the hostmot2 driver needs to be altered. >> >> I need to look into that but have not had time to do so yet. I have a >> Balluf linear transducer that has an SSI output on it that I bought to >> complete the interface. >> >> I can bring everything to Wichita if anyone else has some interest in >> this.. >> >> I think this would be a valuable addition to LinuxCNC.
Theres also a untested BISS interface in HostMot2. I suspect multi-channel BISS would be hard to implement well in the PRU because of the deskew requirement. Peter Wallace Mesa Electronics ------------------------------------------------------------------------------ Introducing AppDynamics Lite, a free troubleshooting tool for Java/.NET Get 100% visibility into your production application - at no cost. Code-level diagnostics for performance bottlenecks with <2% overhead Download for free and get started troubleshooting in minutes. http://p.sf.net/sfu/appdyn_d2d_ap1 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
