Re: [CAD_CAM_EDM_DRO] step-direction -> L6219

Elliot Burke wrote:

> CAD_CAM_EDM_DRO. An electronic device with a L6219 stepper driver in it has
> come into my possession. I'd like to be able to leave everything where it
> is, cut a few traces to the L6219, and drive it with Mach3.
> Has anyone used this chip that could give me some advise about how this
> could be done?
> It looks like it might take some glue logic, as the L6219 has a total of 6
> inputs.
>
> And if anyone else has tried to do this and given up in disgust, I'd like to
> know why, so I don't do the same.

Not the easiest of starting points, but http://telin.ugent.be/~ps/stepper/ has
done it from a computer :)

To be honest, the circuitry to make this work step and direction will probably
cost more than just picking up an A3967 - I'm seeing them at 1.92GBP and
they give you selection of full to 1/8 step mode.
http://www.allegromicro.com/en/Products/Part_Numbers/3967/3967.pdf

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Lester Caine - G8HFL
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