On Tue, Apr 17, 2007 at 04:32:04PM +0700, Dominikus Budiwibowo wrote:
> What is 'joint 0 following error' mean?
> I used freqgen to drive my DC servo motor when this error happen.

It means the difference between the commanded position and feedback
position differ by more than the allowed following error.

> Which is better, pwmgen, freqgen or stepgen, to drive DC servo motor?

Probably pwmgen if your driver takes up/down pwm or pwm/dir.


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