On Thu, 9 Jul 2009, Chris Radek wrote: > Date: Thu, 9 Jul 2009 11:13:07 -0500 > From: Chris Radek <[email protected]> > Reply-To: "Enhanced Machine Controller (EMC)" > <[email protected]> > To: "Enhanced Machine Controller (EMC)" <[email protected]> > Subject: Re: [Emc-users] Hostmot2 homing > > On Thu, Jul 09, 2009 at 04:28:23PM +0100, Leslie Newell wrote: > >> Watching GPIO 28 with halmeter I can see the index so the hardware is >> working correctly, going TRUE when the index is active. >> When I home, it appears to ignore the index completely. The machine hits >> the home switch, backs off then stops almost immediately when the switch >> breaks, ignoring the index. >> Watching axis.0.index-enable with halmeter I see it go TRUE for a moment >> when the switch releases then almost immedaitely FALSE again. > > > index-enable is set true by the motion controller when it wants to > start the index search (this will be after finding the switch), then > it is set false by the hardware/driver when index is found. The time > the index-enable is true is the search time. > > I think it's actually working. Your index might be closer to your > switch than you expect, so you think it's not reading it. > > What is GPIO 28? I don't understand this part. >
Might also be that the index is inverted so its "detected" as soon as its enabled by EMC detecting the home switch... > > ------------------------------------------------------------------------------ > Enter the BlackBerry Developer Challenge > This is your chance to win up to $100,000 in prizes! For a limited time, > vendors submitting new applications to BlackBerry App World(TM) will have > the opportunity to enter the BlackBerry Developer Challenge. See full prize > details at: http://p.sf.net/sfu/Challenge > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
