I have done a fair bit of testing, and pins (1,14,16,17) work as inputs in X
mode, they don't output any voltage in the other modes, but their resistance to
ground does change in those modes, so something is happening. All the other
pins seem to work fine.
My loadrt line in hal is :
loadrt hal_parport cfg="0xe030 out 0xe010 out"
Using loadrt hal_parport cfg="0 out 1 out" gives the same results.
If I try to use loadrt hal_parport cfg="0xe030 epp 0xe010 epp" I get two
warning popups "Linux parallel port @65535 not found" and hal shows pins for 4
parallel ports, but only port 0 seems to work.
lspci -v
06:00.0 Parallel controller: MosChip Semiconductor Technology Ltd. PCI 9865
Multi-I/O Controller (prog-if 03 [IEEE1284])
Subsystem: Device a000:2000
Flags: bus master, medium devsel, latency 32, IRQ 19
I/O ports at e030 [size=8]
I/O ports at e020 [size=8]
Memory at fe503000 (32-bit, non-prefetchable) [size=4K]
Memory at fe502000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: parport_pc
Kernel modules: parport_pc
06:00.2 Parallel controller: MosChip Semiconductor Technology Ltd. PCI 9865
Multi-I/O Controller (prog-if 03 [IEEE1284])
Subsystem: Device a000:2000
Flags: bus master, medium devsel, latency 32, IRQ 17
I/O ports at e010 [size=8]
I/O ports at e000 [size=8]
Memory at fe501000 (32-bit, non-prefetchable) [size=4K]
Memory at fe500000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: parport_pc
Kernel modules: parport_pc
The output from "cat /proc/ioports |grep parport" is a bit odd. In that it
doesn't give any actually usable memory addresses
~$ cat /proc/ioports |grep parport
0000-0000 : parport1
0000-0000 : parport1
0000-0000 : parport0
0000-0000 : parport0
Is it possible I damaged the card by testing it in X mode or that there is
something wrong with the Cnc4pc C80 breakout boards I'm trying to use that
wrecked them? (I used a 470ohm resister to probe the port terminals to test
with.)
Or is it more likely that this card never really worked right.
Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone: (330)828-2105ext. 2031
-----Original Message-----
From: Jon Elson <el...@pico-systems.com>
Sent: Monday, August 27, 2018 9:07 PM
To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net>
Subject: Re: [Emc-users] Parallel Port
On 08/27/2018 12:38 PM, Todd Zuercher wrote:
> I have a duel port PCIe parallel port card that I am trying to use in an
> application, but I'm having a little trouble.
>
> My problem is that I can't seem to use the pins in the control groupe
> (1,14,16,17) as outputs in the normal "out" or "in" configurations. When set
> up as out or in those pins seem to be dead. If I configure the port in X
> mode they do work as inputs. I am at a bit of a loss with what to do. I am
> afraid that the breakout board I was trying to use might have messed up the
> parallel port card, so I'm a little afraid to plug it into a known good
> working machine.
>
>
Well, first thing is to put some LEDs on the outputs and use a par port test
program to see what is going on. Some boards have several modes (SPP, BiDir,
EPP, ECP) that turn different driver strengths on.
And, probably some of these PCIe clone cards may just not work completely. I
am most involved with EPP mode, and there certainly are some cards out there
that just don't work. Also, some cards are totally non-standard register
arrangement, and will only work with the maker's Windows driver supplied on a
disc.
Jon
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