Re: [CAD_CAM_EDM_DRO] EMC/Gecko/Parallel Port interface

Hi Allan,

You might want to check through previous posts for more info.
Previously, it has been suggested that you "steal" +5v from either the
joystick connector, or the keyboard connector. A wall wart can also be
used. You do NOT want to just hang a 5v regulator on the MOTOR +40v (or
whatever) supply!

I would assume that standard parallel ports at 378h, 278h, possibly even
3BCh would be recognized, as they are initially recognized and "mapped"
(addresses recorded) into six words at addresses 40:8 in memory.
Linux/EMC could either use these, or find them on it's own. At any
rate, these standard addresses are you best bet. After that, Linux/EMC
*MIGHT* do even more for you!

If these standard addresses are used, just plug the card in (watch for
address conflicts), and the BIOS will recognize them. Linux/EMC will
probably report the choices to you.... I don't know for sure, I'm not
that far along (and I couldn't read the stuff on the screen FAST
enough)!

Hope this helps!

Alan KM6VV
(fellow BDI novice)


allan_r9@... wrote:

>
> Hello List,
>
> I'm getting close to connecting my EMC machine to my current mill,
> and ran into some problems connecting my Gecko 201s to the parallel
> port. Geckos require step/dir/+5VDC signal inputs, but the parallel
> port doesn't have +5VDC output, right? How are others making the
> connection to Geckos, specifcally supplying the +5VDC input? I will
> be getting a separate parallel port card to protect my motherboard.
> Will the BDI EMC install recognize a second parallel port card? What
> steps are required to "see" the additional port? Does the BDI
> install have a preference between PCI or ISA parallel port cards? I
> am trying to run the 5 axis EMC that Ian Wright supplied, so the
> total of 5 Geckos require a minumum of 80mA sink capability on the
> card(s).
> Any help or thoughts will be appreciated.
> Thank you,
> Allan
>
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