On Sat, 24 Jan 2009, Peter blodow wrote:
SNIP-----------------------------------------------------------
>
> As I understand, modern driver electronics care for sufficient pulse length
> independently of the trigger from the PC so the motors will run smooth
> again as they used to. And there came my question: will purchase of new
> electronics solve the problem? Apparently, because many participants of
> this mail group seem to use Mesa boards and it's working that way.
>
> Now, if I had new boards, I would have to adjust the system by means of
> stepconf - is that not right? Why do you say the parport setup by
> stepconfig is useless? What else am I to use, and where can I find more
> information?
Since your step driver cards are low performance (5KHz max?) there is really
little advantage to using hardware step generation (Mesa or Pico cards). In
any case you would still need to hand edit the HAL file to set various stepgen
parameters: steplen, stepspace, dirsetup, dirhold , etc
Also, are you really sure your step motor drivers use Step & Dir inputs?
If they were designed for quadrature (direct coil drive) you might have
similar symptoms.
Peter Wallace
Mesa Electronics
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