RE: [CAD_CAM_EDM_DRO] Re: parallel port finally obsolete?

> Maybe it's ME who is obsolete, but I had been using "Pre-Windows-Vista"
> PC's (Win.98 and earlier), to drive home-brew CNC gear (X-Y plotter I

built, and

> HOPE to use again, in the office!). But the "old" PC that came with
> Win.98 died, and the "spare" I had with a PUP "came with" Windows XP, and

it

> will NOT drive "my machine" via the parallel port, though it WILL PRINT

via

> that PUP.
>
> Is there a "status" line or the like on the PUP (other than the 8

data-bits, and 8

> "ground" pins) that I might "pull up" (hardwire?), or "ground"
> which will make it possible to turn the PUP data-byte pins on or off via

DOS as

> I had BEEN doing with earlier PC's? Thanks! Jan

Rowland


Wrong setting in the BIOs perhaps?

Change it to SPP, not ECP or EPP.

The new protocols allow read/write over the data lines, which SPP didn't.
(Old devices would cheat and use the status lines as data, but that only got
you 4-bit (?) transfers.)

Tony