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I can try duplicating this later today.

I used this two cables for connection. 

eusurplus.com/index.php?route=product/pr...t_id=108&search=db25
eusurplus.com/index.php?route=product/pr...t_id=109&search=db25

Thank you for your answer.

I would try:

config="sserial_port_0=00000000"

Might also be a DB25 cable issue, not all adapters are wired correctly for this use.

Hi,I am retrofitting a CNC lathe with LinuxCNC and I have the following Mesa hardware:

• 1x Mesa 7i97T
• 1x Mesa 7i74
• 4x Mesa 7i84U
• IDC26 to DB25 adapter
• DB25 male-male 1:1 cable between 7i97T P2 and 7i74
• standard straight-through CAT5e cables between 7i74 and 7i84U

The problem is that none of the 7i84U boards are detected over Smart Serial.The 7i97T is reachable at:I am using firmware:MD5:I also verified the firmware in flash with:and I get:gives only:but no 7i84U devices are listed.I tested 7i84U boards on CH1 and CH2 of the 7i74 with the same result.On the 7i84U:

• W3 = LEFT / operate mode / 2.5 Mbaud
• VIN = about 28 V
• VFIELD A = about 28 V
• VFIELD B = about 28 V
• CR2 ON
• CR7 ON
• CR5 red ON
• CR6 green OFF / never blinks

On the 7i74:

• CR1 is ON
• I initially measured only about 4.5 V
• I changed it to external regulated 5 V supply
• now TB1 measures 5.08 V
• the problem is still exactly the same

I checked the RJ45 cable and it is straight-through:I also tested the 7i97T P2 interface with W21 UP and P2 disconnected:Result:So that test appears to pass. also shows the expected Smart Serial signals: on the 7i97T and  for the 7i74 channels.I also tried loading HostMot2 manually:The 7i97T loads and registers normally, but the 7i84U is still not detected.Everything is new hardware.At this point I suspect either the 7i74 itself, the IDC26/DB25 path between P2 and the 7i74, or something I am missing in the Smart Serial configuration.Does anyone have a known-good 7i97T + 7i74 + 7i84U setup and can tell me what I should test next?In particular:

• Is 

  sserial_port_0=x0xxxxxx

   correct for a 7i84U connected to CH1 of the 7i74?
• Is there a direct test for TX/RX on the 7i74 without an oscilloscope?
• Are there any jumpers/settings on the 7i74 or 7i84U that I may have missed?

Thanks.

Should be this week.
 

beep boop... 

I have tried lcec configgen xml
Now I have got a new xml file as attached, but LinuxCNC doesn't start.
 

Typical of Python, the message is absolutely true and absolutely useless...
ValueError: invalid literal for int() with base 10: '' means that you are trying to use an empty string as an int variable, but it doesn't tell you where that empty string came from.
Of course, you can look for the cause for a long time and finally find that, for example, the disk is damaged...
I see that you have a very old Linux with Python 2.7 and instead of repairing this museum, you would be better off installing a new system on new hardware.
It may be easier, and it will definitely be better.

   
Sorry about that. Ive attached pics here.

Спасибо большое. На плату залита прошивка с сайта mesa (7i98_5abobx3d.zip - bit and pin), хотя плата неоригинальная. Приложил файлы с фото платы и распиновкой: old - что сейчас пока установлено, new - как нужно. Свободные пины на P3 буду использовать по концевики,  HOME, Estop и переключатели.

I decided to wait for the next batch of boards to come out. Any estimation when they will be available?

-Use a DVM to check if the ground is properly connected.
-A quick test, make another config with PncConf, but invert all stepgen output pins.
Upload the config files here sop we can have a look, and some pictures of the wiring.

Upload the pictures here, not on plasmaspider.

I am using direct UDP to the board instead. Thanks for the input!

hi ive got this working flawlessly on my scylla btt board took 3 days drop us a message on here if u still looking .