Re: Detect Stepper pulses

Consider connecting a 470 ohm resistor in series with a set of
headphones. Connect that to your step output pin and you will
actually hear the step pulses from 0 to about 10,000 per second.

Mariss


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "karl_l_townsend"
<karltownsend@e...> wrote:

> I'm working with new PC hardware and software to drive the steppers
> on my knee mill. FWIW, its a Galil computer on a PCI card mounted

in

> a PC.
>
> Anyway, I'm issueing move commands to the galil card, and it

reports

> back a move was issued. But nothing happens at the stepper. I know
> the stepper and driver are in working condition. (they work under

my

> existing Ahha PC control)
>
> At this pint, I'd like to check for step pulses in the wiring.

Can't

> afford a 'scope. Is there some kind of cheap probe that can check
> for step pulses?
>
> Karl Townsend