Re: [CAD_CAM_EDM_DRO] Servo control based on Atmel AVR

John Johnson wrote:

>I've search far and wide and can't find an open source servo controller
>based on the Atmel AVR. /Plenty/ of RC servos, but no real servo
>motors. I'm looking for code with (hopefully) PWM output, encoder input
>and PID routines.
>ADVthanksANCE!
>Regards,
> JJ
>
>

There's a couple of projects going on at cnczone.
You don't mention wether you have dc-brush servos or some kind of bldc.
These are mostly for sinusoidal commutation bldc (AC?), since most
surplus motors seems to be of that kind.

dsPIC based sinusoidal AC servodrive:
http://www.cnczone.com/forums/showthread.php?t=14477

"happy servo"
http://www.cnczone.com/forums/showthread.php?t=14556

and, I've toyed with the idea of using IR's IRMCK201 complete motor
control IC myself (no motor control algorithm programming required)
http://www.cnczone.com/forums/showthread.php?t=15334

The microchip website has lot's of motor control application notes and
example code (mostly C).

AW