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I like to get some data out of my Servo driver (Bergerda SDF20NK9). 
Followed all instructions according documented Mesa Modbus. Created an sdf_modbus.so (I made an exact copy as discribes in Mesa Modbus documentation.
If I execute: 'halcmd loadrt sdf_modbus' I get the following error: undefined symbol: hm2_pktuart_aetup_rx

I have seen this thread:  Mesa modbus and pktUart  where the same error message was reported by  Donno  but I can't reproduce his solution. 
I use a Mesa 7i96s card.

Who can help me out?

well I'm saved because I see that you are starting to lose patience,
 but I'm not fired because I have the emergency stop that does not unlock but I think I know where it comes from,
 for info I went to debian 12 with linuxcnc 2.9.4 while I was on mint with linuxcnc 2.9.0

 


Many thanks to you I will post my file and the 2 to 3 things that I know

Actually I think I have it all sorted out now...

JT

Good point, would you feel like reviewing and writing an intro and submit a pull request?

Hi Friends,

Circling back here.

I got my Z to home and jog the correct direction. I don't know what I had wrong but I tried a combination that worked and i am not going to touch it HAHA.

Thanks for your help.

Yeah well after some testing around it turns out that SPI wasn't an issue, the issue that stopped the drive from working was the fact that the raspi 5 couldn't provide stable enough voltage to the VIO of the drive, ive since set up 5 volts from an external power supply and it seems to be working.

Im having a different issue now where the motor itself doesn't spin, it just oscillates a bit depending on scale settings and that's about it, i have checked the motor coil connections and it seems like all the physical connections are fine but some part of the configs just doesn't let it run correctly.

Can I make a small suggestion. It's actually a problem many OS projects have. There's no real introduction. When you open the documentation you would expect something that gives you an idea if it's worth full to continue reading. But you step right into the installation. But I will evaluate further because the name looks promising to what I am looking for. Thanks for your efforts already of course cheers

Hi Friends,

Circling back here, it was a blown driver, I've it replaced and now the motor acts as expected. Thanks for the support, i am no longer having this issue.