2012/12/14 sam sokolik <sa...@empirescreen.com>: > what does the rs422-->rs232 convert do exactly?
Encoder provides differential signal, so that boards converts it to TTL for 7i39 card. Yesterday I was able to make some progress and now there is one error that I have no explanation for: Motor no 1 turns ok with bldc cfg=h and bldc.1.value = 0.15 When I add cfg=qh, motor oscillates, but encoder reports that it is turning at pretty high velocity. If I disable pwmgen and simply turn the motor by hand to check, then it counts all the pulses correctly - approximately 4000 pulses in each direction, it increments or decrements rawcounts pin correctly as the motor is turned in different directions. I tried to move it as fast as I can with hand back and forth and then placed it approximately as it was and the rawcounts number was approximately the same, so I could not get any evidence that any encoder pulses would be skipped or something else would be wrong. But the motor does not turn. I tried smaller number for bldc.value, but the only difference is that the amplitude of oscillation was smaller. Can anyone share some ideas, what else can I try? -- Viesturs If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
