Par port card problems what to do???

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03 Dec 2011 01:14 #15310 by garymcrobertpdx
What is it with par port cards? I have a Netmos card that works fine
and the mother board par port works also.

I got a dual port Netmos card it fails to work????

I used the lspci -v and got the address

04:00.0 Communication controller: NetMos Technology PCI 9815 Multi-I/O Controller (rev 01)
Subsystem: LSI Logic / Symbios Logic 2P0S (2 port parallel adaptor)
Flags: medium devsel, IRQ 11
I/O ports at dcc8
I/O ports at dcd0
I/O ports at dcd8
I/O ports at dce0
I/O ports at dce8
I/O ports at dcf0

I tried each address one at a time.
loadrt hal_parport cfg="0xdcc8 out"
loadrt hal_parport cfg="0xdcd0 out"
loadrt hal_parport cfg="0xdcd8 out"
loadrt hal_parport cfg="0xdce0 out"
loadrt hal_parport cfg="0xdce8 out"
loadrt hal_parport cfg="0xdcf0 out"

Nothing! What is the magic incantation?

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03 Dec 2011 09:38 #15322 by Rick G
Have you looked here...

wiki.linuxcnc.org/emcinfo.pl?NetMos

Rick G

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04 Dec 2011 00:26 #15341 by andypugh
garymcrobertpdx wrote:

What is the magic incantation?


You can try [code] cat /proc/ioports[/quote] which should give you an unambiguous address.

Or try looking through dmesg, when parport_pc loads it says where it has found ports.

Or you could try using index numbers (0, 1, 2) rather than the port address in the loadrt line.

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04 Dec 2011 02:18 #15351 by garymcrobertpdx
Hi

Yes I have been there and I tried the suggested procedure.

me@CNC:~$ /sbin/insmod /lib/modules/2.6.24-16-rtai/kernel/drivers/parport/parport_pc.ko
insmod: error inserting '/lib/modules/2.6.24-16-rtai/kernel/drivers/parport/parport_pc.ko': -1 Operation not permitted
me@CNC:~$

But as you can see it failed to deliver results perhaps due to my lack of experience with Linux???

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04 Dec 2011 02:36 #15352 by garymcrobertpdx
Hi Andy

tried the command
me@CNC:~$ cat /proc/ioports
got a lot of stuff but I do see some thing familiar
d000-dfff : PCI Bus #04
dcc8-dccf : 0000:04:00.0
dcd0-dcd7 : 0000:04:00.0
dcd8-dcdf : 0000:04:00.0
dce0-dce7 : 0000:04:00.0
dce8-dcef : 0000:04:00.0
dcf0-dcff : 0000:04:00.0

This looks much like the results from the command
me@CNC:~$ lspci -v
Subsystem: LSI Logic / Symbios Logic 2P0S (2 port parallel adaptor)
Flags: medium devsel, IRQ 11
I/O ports at dcc8
I/O ports at dcd0
I/O ports at dcd8
I/O ports at dce0
I/O ports at dce8
I/O ports at dcf0 [size=16

tried using loadrt hal_parport cfg="0 out"EMC2 gave an error when launched it.
how did I screw up the syntax

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04 Dec 2011 08:58 - 04 Dec 2011 09:04 #15355 by Rick G

tried using loadrt hal_parport cfg="0 out"EMC2 gave an error when launched it.


Have you tried without the "out"?
loadrt hal_parport cfg="0"
I beleive out is the default.

Does your motherboard also have a parallel port?

Rick G
Last edit: 04 Dec 2011 09:04 by Rick G.

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04 Dec 2011 19:33 #15369 by garymcrobertpdx
Hi Rick / Andy

Looks like I have been barking up the wrong tree! the problem is not the address of the board.
But a problem with the boards lack of ability to source current. For some reason this card has
outputs that vary from 5ma to 0.1ma which is not adequate to drive a opto LED in a motor drive.

So why is this the case with one card and not another? what sort of weird design is this?
I sure would like to see a list of brand name par port cards that are known to work
properly, that sure could save a lot of time and irritation.

Anyway thank for your suggestions and help

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04 Dec 2011 19:59 #15371 by BigJohnT
There doesn't seem to be much of a standard with parallel port cards, some work with anything, some don't do EPP some don't do input and some don't do anything... any chance the card is borked?

John

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04 Dec 2011 20:09 #15372 by andypugh
garymcrobertpdx wrote:

Looks like I have been barking up the wrong tree! the problem is not the address of the board.
But a problem with the boards lack of ability to source current.


They generally do a lot better at sinking current.

Connect 5V to the top of the Opto, and connect the parport on the ground side, you will probably find that works a lot better.

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04 Dec 2011 20:31 #15376 by garymcrobertpdx
Hi John

The card is new out of the box. I could build a add on buffer using something like
a 74HC244 but what a pain in the butt.. I miss the old ISA buss it was a snap to
ship data in and out of the IO buss via a TTL latch that could sink and source 20ma
with no screwing around.

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