Custom EtherCAT device

Tady wrote:

Care to share the product info? Price?

www.ti.com/video/6174380675001

Very intersting device, but its hard to source and expensive and the pin count is too big (176 pins) or it's a BGA package. Not really good for a hobby. Also I'm familiar with STM32 programming or Arduino so I would need to learn the TI sprcific registers, their IDE and a their programmer would be needed. And I don't know their gotchas with there MCUs

Well it works. There were two problems. First I browsed trough the source of linuxcnc-ethercat and found that instead of halType="float" I needed to use halType="float-ieee".
Second thing is that "github.com/sittner/linuxcnc-ethercat.git" has a bug, but there is a fork that has this fixed but it was not merged. I used "github.com/djsftree/linuxcnc-ethercat.git" and it work like a charm
RODW maybe you should change your tutorial to use this repo?

Great you got it going. I had In my sticky, I added a spoiler that included an update to one of sitners files.
My guess Is the second repo has copied that fix. (I helped him out a bit off forum)
I did not want to deviate too far from the normal repos like Sittner's

I understand and I'm with you 100%. If you lnow him off forum maybe you can ask him for the fix? So nobody euns in to similar problems?

Some people have got it going with sitners version so I have been a bit careful here.
Recently I found Sitners version worked but when I ran it, it errored so I rebuilt it with the changes and it worked.
I have thought of forking his repo and making the changes but I have a few things to do  before I get back to Ethercat.

If you want another challenge write a Linuxcnc custom homing module for Ethercat cia402 drives
I started than the devs changed the core code....

I have absolutley no knowlidge of the CIA402 protocol, and i have no drives

May be worth look at this
github.com/kubabuda/ecat_servo

If you ask me you should clone his repo. I think there is not much activity there and some fixes have been submitted, but none if them were implemented or at least commented on why not

I found this.. A bit misleading. There is no servo code there only the implementation for CIA. This is based on easycat library, its the same as mine. I only ported it to STM32Cube. But yes ok I see it has 402 implementation. Ehat I don't understand is why is there an extra module for linuxcnc to use the CiA protocol.. Isn't this only a definition of the PDOs?