Sherline steppers won't turn using PCI serial card

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10 years 5 months ago #74347 by jeff.hemphill@schaeffler.com
Sherline steppers won't turn using PCI serial card was created by jeff.hemphill@schaeffler.com
I just purchased a Sherline mill and set up Linux CNC on an Ubuntu 10.04 Lucid Linux PC. I installed a PCIe serial card which shows up in the port list below. I have blacklisted parport_pc. Linux CNC starts and the motor drivers lock the motors but I can't find any combination of addresses or configurations that will cause the motors to jog. I have tried: "loadrt hal_parport cfg="0x0378" and "0x0378 d800)". d400 causes a resource busy error message and Linux CNC won't start. I also tried changing the IO pins to "net Xstep parport.1.pin-03-out but got various "does not exist" error messages.

Below is the relevant portion of my config and IO ports. What can I try next?

Standard Pinot HAL Config:
Code:
# first load the parport driver loadrt probe_parport loadrt hal_parport cfg="d800" # default loadrt hal_parport cfg="0x0378" # # next connect the parport functions to threads # read inputs first addf parport.0.read base-thread 1 # write outputs last addf parport.0.write base-thread -1 # # finally connect physical pins to the signals #net estop-out => parport.0.pin-01-out net Xstep parport.0.pin-03-out net Xdir parport.0.pin-02-out net Ystep parport.0.pin-05-out net Ydir parport.0.pin-04-out net Zstep parport.0.pin-07-out net Zdir parport.0.pin-06-out net Astep parport.0.pin-09-out net Adir parport.0.pin-08-out # create a signal for the estop loopback net estop-ext <= parport.0.pin-10-in net estop-out <= iocontrol.0.user-enable-out net estop-out => iocontrol.0.emc-enable-in [b] Output from /proc/ioports:[/b] 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-0060 : keyboard 0064-0064 : keyboard 0070-0071 : rtc0 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 0170-0177 : 0000:00:14.1 0170-0177 : pata_atiixp 01f0-01f7 : 0000:00:14.1 01f0-01f7 : pata_atiixp 0376-0376 : 0000:00:14.1 0376-0376 : pata_atiixp 03c0-03df : vga+ 03f6-03f6 : 0000:00:14.1 03f6-03f6 : pata_atiixp 03f8-03ff : serial 040b-040b : pnp 00:0a 04d0-04d1 : pnp 00:0a 04d6-04d6 : pnp 00:0a 0800-089f : pnp 00:0a 0800-0803 : ACPI PM1a_EVT_BLK 0804-0805 : ACPI PM1a_CNT_BLK 0808-080b : ACPI PM_TMR 0820-0827 : ACPI GPE0_BLK 0900-090f : pnp 00:0a 0910-091f : pnp 00:0a 0ae0-0aef : pnp 00:0b 0b00-0b0f : pnp 00:0a 0b20-0b3f : pnp 00:0a 0c00-0c01 : pnp 00:0a 0c14-0c14 : pnp 00:0a 0c50-0c51 : pnp 00:0a 0c52-0c52 : pnp 00:0a 0c6c-0c6c : pnp 00:0a 0c6f-0c6f : pnp 00:0a 0cd0-0cd1 : pnp 00:0a 0cd2-0cd3 : pnp 00:0a 0cd4-0cd5 : pnp 00:0a 0cd6-0cd7 : pnp 00:0a 0cd8-0cdf : pnp 00:0a 0cf8-0cff : PCI conf1 0e80-0f5f : pnp 00:0b 7000-700f : 0000:00:11.0 7000-700f : ahci 8000-8003 : 0000:00:11.0 8000-8003 : ahci 9000-9007 : 0000:00:11.0 9000-9007 : ahci a000-a003 : 0000:00:11.0 a000-a003 : ahci b000-b007 : 0000:00:11.0 b000-b007 : ahci c000-cfff : PCI Bus 0000:01 c000-c0ff : 0000:01:05.0 d000-dfff : PCI Bus 0000:02 d400-d403 : 0000:02:00.0 d800-d8ff : 0000:02:00.0 d800-d807 : hal_parport d8c0-d8c7 : wch_ser d8c8-d8cf : wch_ser e000-efff : PCI Bus 0000:03 e800-e8ff : 0000:03:00.0 e800-e8ff : r8169 fe00-fefe : pnp 00:0a ff00-ff0f : 0000:00:14.1 ff00-ff0f : pata_atiixp

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10 years 5 months ago #74348 by andypugh
Replied by andypugh on topic Sherline steppers won't turn using PCI serial card
For a PCI port there might be clues from "lspci"

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10 years 5 months ago #74349 by jeff.hemphill@schaeffler.com
Replied by jeff.hemphill@schaeffler.com on topic Sherline steppers won't turn using PCI serial card
Sorry, I meant to include that. It's:

02:00.0 Serial controller: Device lc00:3250 (rev 10) (prog-if 05)
Subsystem: Device lc00:3250
Flags: fast devsel, IRQ 16
I/O ports at d800
Memory at fdef8000 (32-bit, prefetchable) [size=32k]
I/O ports at d400
Expansion ROM at fe9f0000 [disabled] [size=32k]
Capabilities: <access denied>
Kernel modules: wch

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10 years 5 months ago #74350 by andypugh
Replied by andypugh on topic Sherline steppers won't turn using PCI serial card
d800 does look like the likely candidate. Do you have any inputs that you can test? There are many possible causes of not-stepping.

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10 years 5 months ago #74398 by cncbasher
Replied by cncbasher on topic Sherline steppers won't turn using PCI serial card
a few poiinters , if you can start Linuxcnc and the motors lock and then come out of linuxcnc , and the motors clearly follow , then the chances are the parport is working , are you using any enable for the steppers , it may simply be reversed .
you shouldn't need to blacklist the parport_pc . and in fact you may need to re-install it .

the first point is to see if linuxcnc is controlling the parallelport , perhaps try testing one of the io , or estop and see if that works, this will say if it's a card communication problem or just a config change needed .
i may also say some pcie cards dont work with linuxcnc unfortunately ( i have a box full of ones that dont )

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10 years 5 months ago #74785 by jeff.hemphill@schaeffler.com
Replied by jeff.hemphill@schaeffler.com on topic Sherline steppers won't turn using PCI serial card
I fixed it by using a simple cable that has db25 LPT1 on one end and an IDC connector that plugs directly into the motherboard. It seems that when printer ports went out of style, many motherboard manufacturers left the pins on the motherboard. That port is 0378 and works fine. Thanks for the suggestions!

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10 years 5 months ago #74798 by andypugh
Replied by andypugh on topic Sherline steppers won't turn using PCI serial card

jeff.hemphill@schaeffler.com wrote: I fixed it by using a simple cable that has db25 LPT1 on one end and an IDC connector that plugs directly into the motherboard.


You can get these cheaply incorporating a PC case back-panel insert:
www.amazon.co.uk/Sourcingmap-Parallel-Fe...arallel+port+adaptor

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10 years 5 months ago #74932 by verticalperformance
Replied by verticalperformance on topic Sherline steppers won't turn using PCI serial card
Just an idle observation... In the first post you mention PCI Serial card. Typo? Did you mean parallel card? If it really was a serial card, that might be the issue :(

Most of the off the shelf sherline drivers use a parallel port, and as you seem to have got it working by using the motherboard native parallel port, it definitely is not a serial based stepper driver.

Enjoy the Sherline, I've been running a lathe and mill for 5 years or so now and have been very happy with them. If you ever want spindle control for the sherline, check out

Homman Designs DC-04 DigiSpeed SL

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