Hi Andy >> By the way. I only found a man page on bldc and the pages in >> the wiki, is there any documentation that I'm missing. > > I started to write a Wiki page, then didn't finish it. Maybe one > day i will remember to get back to it.
You are talking about this page: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?BLDC Right? So I'll add some info once I'l trough with this. I got trapezoidal commutation working again, cleaned things up a bit. Regarding the sinusoidal commutation I'm no longer sure if I ever had this working. After some thinking on the problem it's actually not easy to get this running on a motor with an incremental encoder with an index signal. There is some kind of initialization necessary: Turing the motor in trapezoidal until the index is reached. Than a encoder offset (an index offset) is needed to correct the phase of the encoder signal. An now sinusoidal commutation can begin. As fare as I see bldc provides bldc.N.init man bldc.N.init-done to start in initialization sequence. Is this the init procedure I need? Can I set the mode to iqh (index input, hall inputs, inc. encoder inputs). And the init pin revives the rising flank the motor should run to the index mark, the offset should be stored and mode switched to sinusoidal. See you Flo ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
