limited motion when testing in Stepconf Wizard

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01 Jun 2021 21:27 #210916 by jruffsr
I had to replace my PC for my Light Machines CNC. I am using the same PCI parallel port card.
Here are what is listed when I checked parallel port information.
jruff@jruff-HP-ProDesk-600-G1-SFF:~$ cat /proc/ioports | grep parport
0000-0000 : parport0
0000-0000 : parport0
jruff@jruff-HP-ProDesk-600-G1-SFF:~$ lspci -vv
02:00.0 Parallel controller: Oxford Semiconductor Ltd Device c110 (prog-if 02 [ECP])
Subsystem: Oxford Semiconductor Ltd Device c110
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 16
Region 0: I/O ports at e010
Region 1: I/O ports at e000
Capabilities: <access denied>
Kernel driver in use: parport_pc

I have set the port ti 0xe010 and receive no error on startup of LinuxCNC. But I am unable to get any motion in JOG.
When I run Stepconf Wizard and test the X,Y,Z axis, I can see the motor make one "step" It moves the same direction Whether I click on < or >.
Please advise how to determine what could be causing this.
Thanls

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01 Jun 2021 21:52 #210921 by BigJohnT
Replied by BigJohnT on topic limited motion when testing in Stepconf Wizard
Often this is because step and direction pins are reversed.The direction pin will send only one pulse each time it changes direction.

JT

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02 Jun 2021 14:21 #210998 by jruffsr
is there a document that details these pin outs? is it correct, I would need to update the pinouts in Stepconf Wizard?
Thank you for the quick response

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02 Jun 2021 22:46 #211035 by BigJohnT
Replied by BigJohnT on topic limited motion when testing in Stepconf Wizard
The Stepconf Tool will show what pin is used for each step and direction. You can search online for a parallel port pin location to verify you have the hardware connected to the correct pin.

linuxcnc.org/docs/2.8/html/hal/parallel-port.html

JT

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