Re: [CAD_CAM_EDM_DRO] p-port alternative 8255PPI

hi all there,

i am really new to the list, so forgive me if the question is silly.

i read the thread, and :

would it be usable to have a 8255 (24 io pins) in the parallel port???
i have studied electrical engineering, and had to do this as a lab project. not
too difficult.
of course the software to drive the pins will be _slightly_ more complex.

or the software U use would not be configureable to support this?

vajk

Alan Marconett KM6VV wrote:

> Hi Jerry,
>
> Were you LOOKING for 8255 stuff (24 pin I/O card)? I'm confused. I
> thought you were just referring to IBM's use of the chip in the original
> IBM PC.
>
> It'd be nice to have that many pins, but a PCMCIA (and other "SPECIAL")
> card would be both expensive, and typically not supported by DOS apps.
> AND, I'm not about to run CNC hardware from my IBM laptop, anyway!
>
> Alan KM6VV
>
> Paul wrote:
> >
> > Hi Jerry
> >
> > www.amplicon.co.uk/pdf01/pg191.pdf - 82C55 and 82C54 in a PCMCIA card.
> > Somewhat expensive for just three counter/timers and 24 bits of digital IO.
> >
> > Regards, Paul.
> >
> > On Tuesday 19 February 2002 8:23 pm, Carol & Jerry Jankura wrote:
> > > I was thinking of the 8255 on a PCMCIA card. I'm using a notebook (laptop)
> > > to run my machine.
> > >
> > > -- Jerry
>
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