Meant to say; The onboard (built in) parallel port of a mother board isn't a 
PCI device so lspci -v won't show anything about it.
This command should show your built in parallel port address.
cat /proc/ioports | grep parport

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-----Original Message-----
From: Todd Zuercher <to...@pgrahamdunn.com>
Sent: Tuesday, January 02, 2024 11:04 AM
To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net>
Subject: Re: [Emc-users] PCIe parallel port card suggestion

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The onboard (built in) parallel port of a mother board isn't a PCI device so 
won't show anything about it.
This command should show your built in parallel port address.
cat /proc/ioports | grep parport


Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-----Original Message-----
From: Tomaz T. <tomaz_...@hotmail.com>
Sent: Tuesday, January 02, 2024 8:16 AM
To: Enhanced Machine Controller (EMC) <emc-users@lists.sourceforge.net>
Subject: Re: [Emc-users] PCIe parallel port card suggestion

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>But; why doesn't the onboard port work? It really would be expected to.

lspci - did not return any useful information about onboard lpt

dmesg did:
[    5.032598] ppdev: user-space parallel port driver
[    5.036312] parport_pc 00:01: reported by Plug and Play ACPI
[    5.036380] parport0: PC-style at 0x378, irq 5 [PCSPP,TRISTATE,EPP]

[    5.140591] lp0: using parport0 (interrupt-driven).

anyway, then I tried to run Lcnc (2.9.2):

Note: Using POSIX realtime
PPMC: bus 0 epp_dir = 0
PPMC: bus 1 epp_dir = 0
PPMC: bus 2 epp_dir = 0
PPMC: checking EPP bus 0 at port 0378
PPMC: slot 0: ID code: 54 Univ. PWM Controller
PPMC:  exporting UxC digital inputs
PPMC:  exporting UxC digital outputs
PPMC:  exporting PWM generators
PPMC: exporting encoder pins / params
read cache bitmap: 00007fff
write cache bitmap: f0ff2000
PPMC: slot 2: ID code: 43 Univ. Stepper Controller
PPMC:  exporting UxC digital inputs
PPMC:  exporting UxC digital outputs
PPMC:  slave UxC addr 26
PPMC:  slave UxC # 8
PPMC:  exporting step generators
PPMC: exporting encoder pins / params
read cache bitmap: 00007fff
write cache bitmap: ffffa000

BUT there is no position feedback from any encoder!

PS. Wiring is OK as machine works on Lcnc 2.7 (on different/older computer).


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