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

Hi Jon,

Thanks! usr/local/emc ! Is this used by all four (emc_generic,
emc_mini, emc_run and emc_sim) emc's? I see parallel port, and 3 axis,
XYZ that I want to change. Guess it's time to start
reading/experimenting!

I've also found that the SIIG parallel port boards (mine at C400h) don't
need anything to work in DOS, I just needed to EXPAND my "port
recognition code" to look for the new address, and add it to the "list".

Alan KM6VV

Jon Elson wrote:

>
> Alan Marconett KM6VV wrote:
>
> > 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!
>
> You edit the .ini file to tell it what address is used for stepper control and
> limit
> switches (one address) and what address is used for auxilliary (estop,
> spindle,
> coolant, etc) (another address). These are not limited in any way to the
> standard parallel port addresses, as long as they follow the convention of
> which bits in which address are "data bits" and which are "control bits"
> in the fashion of the standard parallel port.
>
> Jon