So now that I know what motor and chips are involved, what exactly am I looking for to determine the "correct" values?
There is another chip mentioned.. An "L6506 - Current Controller for Stepper motors" that mentions that it works along with the L298. The only timing value I can find on the spec sheet is a "Response time" value: Typical: 0.8us (microseconds?) and Max of 1.5us - Michael On May 19, 2009, at 6:16 AM, Steve Stallings wrote: > The L6203 is an H-bridge power stage. As such it does > not have anything to do with the step and direction > timing requirements. They would be determined by > the earlier stage of the signal path, often referred > to as the " translator". > > Steve Stallings > >> -----Original Message----- >> From: Jeff Epler [mailto:jep...@unpythonic.net] >> Sent: Tuesday, May 19, 2009 8:19 AM >> To: Enhanced Machine Controller (EMC); '@unpythonic.net >> Subject: Re: [Emc-users] I Need help optimizing the step >> generation -I found some specs? >> >> On Mon, May 18, 2009 at 11:39:40PM -0700, Michael Jones wrote: >>> LOGIC CONTROL TO POWER DRIVE TIMING >>> Symbol Parameter Test Conditions Min. Typ. Max. Unit >>> Source Current Turn-off Delay 300 ns >> [...] >>> >>> Does this help in deciding on the "correct" values to plug >> in to EMC? >> >> No. These appear to be specifications of timings internal to >> the chip, not specifications of the input timing requirements >> of the chip. >> >> Jeff >> >> -------------------------------------------------------------- >> ---------------- >> Crystal Reports - New Free Runtime and 30 Day Trial Check out >> the new simplified licensing option that enables unlimited >> royalty-free distribution of the report engine for externally >> facing server and web deployment. >> http://p.sf.net/sfu/businessobjects >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > > > ------------------------------------------------------------------------------ > Crystal Reports - New Free Runtime and 30 Day Trial > Check out the new simplified licensing option that enables > unlimited royalty-free distribution of the report engine > for externally facing server and web deployment. > http://p.sf.net/sfu/businessobjects > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
