Re: [CAD_CAM_EDM_DRO] Phase vs. Step/Dir?

On Sun, 24 Aug 2003 15:57:51 -0000, you wrote:

>I think I understand what Step/Dir is. There is a signal for the
>direction, and the "step" part of it is what gets pulsed to actually
>move the stepper. Correct?
>
>So can someone explain what "phase" is? I get the impression it's a
>different scheme to drive a stepper but that's my only clue.

Various drive schemes...

one is the 1 2 3 4 1 2 3 4 phase sequence, which is called "wave
drive" or "full step".

another is

1 12 2 23 3 34 4 41 1..... Which is called half stepping. See if you
can find the specs on the L297 and 298 chips, and migrate to the app
notes for these chips... Gives you a good idea of what the chips will
do, as well as the fundamentals of driving steppers. They're made by
ST microelectronics.

Harvey

>
>Thanks!
>David
>