On Sunday 13 December 2015 14:56:11 Karlsson & Wang wrote: > > ... > > I take it you do not have any opto-isolation in those 3 paths. That > > 700 ns is pushing an opto's ability to switch that fast. The BoB I > > used was all opto, and I was warned about its speed by someone > > (Steve Stallings?) on this list. > > ... > > Yes opto couplers are not very fast, I think around a few hundred > kilobits per second could be expected for opto couplers if used for > UART, obviously there have to be some margin to unless pushing the > limit is necessary. > > Nicklas Karlsson
I have driven them in a 2M542 at as high as 360 kilobaud, just a motor laying on the table but for everyday work, would not trust them 100% above 175 kilobaud. 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) Some mill pix are at: Genes Web page <http://geneslinuxbox.net:6309/gene/GO704-pix> ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
