Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!uakari.primate.wisc.edu!unmvax!pprg.unm.edu!topgun.dspo.gov!lanl!cmcl2!phri!ccnysci!jhuang From: jhuang@ccnysci.UUCP (Jian Huang) Newsgroups: sci.electronics Subject: Re: chip for step motor control Keywords: help Message-ID: <3033@ccnysci.UUCP> Date: 16 Sep 89 05:08:13 GMT References: <2968@ccnysci.UUCP> <3301@csccat.UUCP> <11071@fluke.COM> Organization: City College of New York Lines: 9 you are right. i am using micro-stepping mode. we are making stepper controllers for our precise positioning systems. our next goal is to have higher speed and complex contour motion. microprocessor does not have enough speed to deal with every pulse if it is used in pulse generation. PLL may be a possible way to do it. it seems difficult any way. --