PCI Parallel port doesn't work under DOS 6.22

  • Thread starter Thread starter Per Holm
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Per Holm

Hi all,

I tried to get a PCI parallel port (LPT2) to work under DOS 6.22, but
without luck.

When I connect the printer to LPT1 it is immediately online even if the
computer is turned off, whereas for LPT2 the card isn't recognized, and the
printer never gets online.

Talked to a former colleague of mine, he said that he had tried three
different vendors PCI cards without luck. I have only tried one - from
DIGITUS Connect (I guess it is Sunix. The chip is SUN1888).

I have already tried the most obvious things (a different card, a different
PCI slot etc.).

Does anyone know what to do ?

Best regards,

Per Holm
 
Per said:
Hi all,

I tried to get a PCI parallel port (LPT2) to work under DOS 6.22, but
without luck.

When I connect the printer to LPT1 it is immediately online even if the
computer is turned off, whereas for LPT2 the card isn't recognized, and the
printer never gets online.

Talked to a former colleague of mine, he said that he had tried three
different vendors PCI cards without luck. I have only tried one - from
DIGITUS Connect (I guess it is Sunix. The chip is SUN1888).

I have already tried the most obvious things (a different card, a different
PCI slot etc.).

Does anyone know what to do ?

Best regards,

Per Holm
Click to expand...
Are you sure this drive is a hardware LPT port and not one that
requires Windows? I have such a PCI card and it is not present except
in Windows. Sometimes we overlook the obvious.

Ken
 
No I'm not sure - but on the box it says supported by the following OS: Win
95/98/ME/2000/XP/NT 4.0, Linux and DOS.

Per
 
Hi all,

I tried to get a PCI parallel port (LPT2) to work under DOS 6.22, but
without luck.

When I connect the printer to LPT1 it is immediately online even if the
computer is turned off, whereas for LPT2 the card isn't recognized, and the
printer never gets online.

Talked to a former colleague of mine, he said that he had tried three
different vendors PCI cards without luck. I have only tried one - from
DIGITUS Connect (I guess it is Sunix. The chip is SUN1888).

I have already tried the most obvious things (a different card, a different
PCI slot etc.).

Does anyone know what to do ?

Best regards,

Per Holm
Click to expand...

Some PCI parallel cards just will not work under as a DOS parallel
port. Under DOS, there were only 3 recognized addresses ( 0x3bc,
0x378, and 0x278) and 2 recognized IRQs 7 & 5. These are not normally
assigned to a PCI device because of possible conflicts with existing
devices. Any PCI card that will work with DOS programs must be
settable to these settings, either through a utility program/driver or
jumpers. I know there are some out there, just don't remember who
makes or sells them. You need to search for a PCI card that
specifically says it will work with DOS programs. Or rewrite the DOS
program to use the addresses and irqs the PCI card is being assigned.

Have ran into the problem with Point of Sale systems running DOS
software.

HTH.

JT
 
This PCI card says it will work with DOS. Also, using MSD I can get the
computer to recognize the card, remap the IRQ and use the right address (I
have disabled the built-in ports except LPT1 to make sure this doesn't have
an impact). However, as soon as I plug in the printer cable (after turning
off the computer) MSD says no to On Line, Paper Out, but Yes to I/O Error.

What can be the problem ?

Btw, this is also for a POS system.

Per
 
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