On Thu, 10 May 2012 13:36:42 -0400 "Kent A. Reed" <kentallanr...@gmail.com> wrote:
> On 5/10/2012 10:27 AM, dave wrote: > > On Thu, 10 May 2012 00:43:12 -0400 > > "Kent A. Reed"<kentallanr...@gmail.com> wrote: > > <snip> > > > > > > Slightly OT but if one wants a non-intel cpu for motion control > > take a look at Mesa's SOFTDMC. Implements a configurable > > accel/decel, jerk limited and very fast servo cycle (<= 50 KHz ). > > The interp, etc would run on the intel and the SOFTDMC in the FPGA > > handles motion. What it needs is a interface between the motion nml > > messages and the format used by the FPGA. I've heard rumors of > > someone having gotten> half way thru an implementation but quit > > working on it. Don't think I every got a name. :-( > > Sorry, just had to rattle the cage. > > > > > > Dave, this is no more OT than the original thread was. > > I love distributed control but it seems to me the sub-USD100 Intel > Atom-based integrated motherboards have sucked the air out of the > room. They're good enough and cheap enough. > > It's almost embarrassing for me to have become such a > stick-in-the-mud. From the time I was a teenager, I was the one > constantly pressing for innovative technical solutions. It took a > long time to realize that our "if we build it they will come" > projects often resulted in "we built it but nobody came (so we wrote > a report!)". I used to believe our problem was that others were > afraid of change. In my dotage, I've come to realize that we didn't > provide adequate reason for others to change. > > From my admittedly biased perspective, the best argument for this > distributed-functionality approach is the need to future-proof > ourselves against the decline and fall of the traditional PC based on > the x86-architecture. (which, like the news of the death of Mark > Twain, is greatly exaggerated but not inevitable). > > Regards, > Kent > SOFTDMC is not a slam dunk but still interesting in terms of being jerk limited and very fast. Probably wouldn't cure problems for enough people to make it worth the work of writing the driver. I've had a 510 board around here for awhile and about to upgrade to 2.5 We'll see if it cures some of my problems with nml communication. It would be really nice if offsets not only showed up internally, which they usually do, but also on the display. Also, even with G64 P .001 I get slight hesitation between even long segments, eg. 2-5 inches. Dave > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. > Discussions will include endpoint security, mobile security and the > latest in malware threats. > http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
