Re: [CAD_CAM_EDM_DRO] Circuits needed

Bill Griffin wrote:

> Can anyone point me to a circuit which will take step and direction
> and convert it to clock up and clock down for a stepper drive which
> has 2 clock inputs instead of a step and dir input. I know its out
> there, but I cant find it.

This is pretty easy. You connect a gate so that step pulses are passed
through when the direction signal is high to one output, low to the other.
This could be done with a single chip in most cases. You need to let
me know what the polarity of the step pulses are (both input, and output).
then I can be more specific.

> The second circuit is a little more difficult, has anyone seen a
> circuit that can take the stepper phase outputs from a processor and
> convert it to step and direction.

This wouldn't be too hard, either. I will have to add it to my
step pulse conversion circuits. i will post a message when I figure
it out.

Jon