PCIE to PCI Adapters

I wish I had seen this sooner. I gave up late at night an re installed windows and mach3 just because I really needed to get other stuff moving.and needed parts made.

I think I'll come back to this later with another pc, or maybe a mesa card.
but who knows I'm stubborn as hell so might be sooner.

TL;DR to anyone in the future wondering about PCIe to PCI adapters do they work? sorta. found my card and all details looked correct but i couldn't move steppers with it or even get the parport tester working so beats me.

ThyerHazard wrote:

I wish I had seen this sooner. I gave up late at night an re installed windows and mach3 just because I really needed to get other stuff moving.and needed parts made.

I think I'll come back to this later with another pc, or maybe a mesa card.
but who knows I'm stubborn as hell so might be sooner.

TL;DR to anyone in the future wondering about PCIe to PCI adapters do they work? sorta. found my card and all details looked correct but i couldn't move steppers with it or even get the parport tester working so beats me.
 

That Oxford chip has 4 serial ports and 1 parallel. It seems that there is room for 2 serial ports on the card but the components are not there.
It also seem that at least the pcie-pci bridge is working or else the card would not be found and no drivers loaded (no lspci for the bridge to know which one it is).

Take a look at  this post of my test.
That sunix 2 port parallel card reported 4 io- ports (correct, 2 ports and each has 2 addresses) (e000, e010, e020, e030) and parport driver used the same addresses (upper ones). In linuxcnc we have to use the lower ports.
Your card reports addresses 3000, 3040, 3048 and the parport driver is using 3028. Sounds a bit strange and it may be that this particular card does not work with linux at all even it has a supported chip (which is configurable...).

Thanks for the reply ISS, 

In the end i went back to LinuxCNC (I had to go on a literal tolkien level adventure into the Australian outback involving getting l lost and losing all phone signal and having to climb a tree to make a phone call to meet up with a strange hippy dude who sold me a Dell Optiplex 980 with a built in par port)

I hooked it up and straight away got the parport working, and then the oxford parport also worked via PCI (NO ADAPTER) and to ad icing to the cake the max jitter after disabling multi-core, front USB ports and Audio is sub 8000

Very happy at the moment, wishing it was the weekend so I could built the rest of the cabinet out, 
Thanks again for all the help guys If I have any other issues or updates I'll start a new thread as it will be off topic. hope it helps people in the future though.
 

ThyerHazard wrote:

Thanks for the reply ISS, 

In the end i went back to LinuxCNC (I had to go on a literal tolkien level adventure into the Australian outback involving getting l lost and losing all phone signal and having to climb a tree to make a phone call to meet up with a strange hippy dude who sold me a Dell Optiplex 980 with a built in par port)

I hooked it up and straight away got the parport working, and then the oxford parport also worked via PCI (NO ADAPTER) and to ad icing to the cake the max jitter after disabling multi-core, front USB ports and Audio is sub 8000

Very happy at the moment, wishing it was the weekend so I could built the rest of the cabinet out, 
Thanks again for all the help guys If I have any other issues or updates I'll start a new thread as it will be off topic. hope it helps people in the future though.

 

With parallel control you are interested more on the base thread jitter which is ~37000. Set up step timings based on that, not 8000.

I suggest checking lspci now for the oxford card, does it show same or different ports than with the adapter ?
Also parport driver messages (same port or different) ?
Just to be sure what the card tells...

 

awww spewing I was stoked for a minute thought I had really good jitter.... oh well guess I'll keep trying things to get it lower.

including a photo of lspci -V Its changed 

Forgive my silly questions, I downloaded 
(LinuxCNC 2.9.2  Debian 12 Bookworm PREEMPT-RT ISO )

and when I look at the one below it marked RTAI

(LinuxCNC 2.9.2 Debian 12 Bookworm RTAI)

There is no hyperlink to download it like there is with the PReempt one am I missing something? I have a list of the older builds is it one of those? sorry again for the dumb questions just super new and don't want to mess it up. Also when I'm actually in the bios selecting the OS to install am I clicking the one marked (live) or just the regular install, On the current set up I just ran the regular install because I assumed the LIVE would just be running the OS of the USB drive for testing? 

Thanks again, included photos of the pages I'm looking at.

LinuxCNC 2.9.2 Debian 12 Bookworm RTAI

The more adventurous can install the Bookworm ISO and then install the experimental RTAI kernel as described in 2.9 documents The kernel-mode RTAI installation can not be used with Mesa Ethernet-interfaced cards. In addition to the RTAI kernel you will also need the rtai-modules package and the linuxcnc package. Both can be downloaded by adding the linuxcnc 2.9-rt package repository as described in the link above.

Here's the link
linuxcnc.org/docs/stable/html/getting-st...nate_install_methods

So if I'm understanding this right, Since I'm already running the LinuxCNC 2.9.2 Debian 12 Bookworm PREEMPT-RT ISO I just need to run the


sudo apt-get install linux-image-rt-amd64
uname -v
chmod +x linuxcnc-install.sh
sudo ./linuxcnc-install.sh
Sudo apt-get update
sudo apt-get install linuxcnc

Obviously following the instructions while I go and thats all I'm doing? Sorry again I just finished a 15 hour shift so my brain is running on like 4 IQ right now