On Thursday 09 November 2017 05:04:01 andy pugh wrote: > On 9 November 2017 at 04:54, Gene Heskett <[email protected]> wrote: > > It would be an interesting experiment. I at one point, and may > > finish it eventually, made what was going to be a 4 axis jog box > > using those teeny motors as the signal generators, but then realized > > I didn't have near enough i/o in a 5i25 to hook it up, so its all in > > a box in the basement waiting for more i/o to magically appear. > > If you have a 5i25 then you have the option of lots of smart-serial > devices. You probably already have at least one smart-serial channel > on the expansion connector.
Not with prob_rfx2 configs. I have looked at others, but the price of the ticket to ride that buss puts me off. Existing low cost bob boards only allow 5 of those gpio's to be used as inputs. By the time I get these gear tally switches wired up, I'll have 3 of those 5 inputs used up. > The serial GPIO cards only have 1kHz IO, but many also have onboard > mpg counters. The 7i73 has 4 encoder channels. What I'd need to do is get the 7i75, which would give me 16 more i/o's of limited current capability connected to p2 on the 5i25. That is affordable. And it would fit in the existing space I have. Hummm. Ideally, a parport 7i90HD would be nice, but to use all that i/o safely needs another $140 worth of 7i42TA's. Can a 7i90HD be driven from p2 on the 5i25? Or is its parport only compatible with real parport hardware? Or do we even have bit files to make p2 a parport on a 5i25? That of course assumes I build a much bigger box to contain all that. I don't think the 7i75 would need a bigger box. Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
