run linuxcnc from the command line, read the error messages and try to fix them. If you can't share the message and your config here.

Short description:
Machine is equipped with integrated ethercat servosteppers, homing by Linuxcnc, not driver internally.
Every work fine but not first homing.
When I perform homing immediatelly after launch Linuxcnc I get some errors, mostly position error.
When I wait several seconds, for the DRO values changed, homing go normally.
It is my first machine with real position feedback and I have no idea what is the reason.
This is not gmoccapy problem, axis works the same.

Okay, ich muss schauen, wie das geht. Ich melde mich, wenn ich es umgesetzt habe. 

Hey, 

ich habe zwar nicht die gleichen Treiber, aber ich habe einfach 5 V draufgegeben und der Treiber war gesperrt. 
Demnach müsste nur ein digitaler Ausgang deiner Mesa-Karte auf ENA+ gelegt werden und der entsprechende GND des digitalen Ports der ESA auf ENA-. 

Wenn der digitale Port dann HIGH ist, müsste der Treiber gesperrt sein. 

Gruß Mücke 

Wie zu erwatren ist ein Fehler aufgetreten  

Error
Kunena Internal Error: Please contact the site administrator to fix this issue!

 Ist eventuell etwas intern mitgeloggt worden? 

 

Dec 27 it looks like from github. Actually, the bug shouldn't affect you.
A negative refClockSyncCycles value should switch on the PLL and synchronize servo loop time with DC time.
You can always check the lcec.pll-* hal variables. If some of them move, it's on.
refClockSyncCycles is how often the master sends a synchronization signal to the slaves to compensate for clock drift.
I use 1000 because the slaves' DC clock run pretty accurate as it is. Many people use 1 as value.
I have not seen that any number is better than the other, maybe there is, but feel free to use any number you prefer.



 

Now as in just recently or in the patch from last year? or reaaally recently
Also, what does the refClockSyncCycles value do and is there any baseline on what to set it at?

There was a bug with "-1", fixed now but it sounds like you have it.
Use a positive value in refClockSyncCycles and set syncToRefClock="true"
and that should hopefully fix it.

I currently have refClockSyncCycles="-1" which according to the docs you linked above, means its enabled for backwards compatibility. Sadly, I have these mentioned issues where the axis starts clunking randomly (on a random axis) after some time. Its a fresh install from end of january. Does SyncToRefClock still need to be set?

Better yet, enable synchronization with syncToRefClock="true"
github.com/linuxcnc-ethercat/linuxcnc-et...s.md#master-settings

The refClockSyncCycles is how often to synchronize the clocks between the slaves
which is something different altogether, and doesn't help this problem.

Never mind. 

I was trying the entire weekend to make the drives work but still no success. Basically I started from scratch and cloned "linux-cia402" from RodW github page. Then executed "ethercat pdos" and the drives return PDO mapping 1701h and 1B01h. Next, following the manual and the mapping for 1701h and 1B01h, I wrote the .xml and .hal files. In the .xml file, I tried to set the data type for each pin as per the manual but the lcec components does not like s16, u16 and u8, anyway I changed them to s32. LinuxCNC opens and loads the configuration but when I try to home, a following error occurs.

In the terminal I observed a weird output when execute "ethercat pdos" after LinuxCNC has started - there is no names on the right of the PDOs, look at the attached pdos.txt file.

Also the synchronization error  and 1 datagram unmatached warning appeared again.

In the beginning of the .xml file I tried to set the PDO mapping using "sdoconfig" but it does not seem to help either.