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  • PCW
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14 Mar 2025 14:43
Replied by PCW on topic 7i95 randomly throws error with raspi b

7i95 randomly throws error with raspi b

Category: Driver Boards

I think it was the wording "reset". To actually reset a 7I95T
you need to cycle the power (or issue a reset command but
LinuxCNC never does this)

If this is a real time error, it may be that the servo thread period
needs to be increased to say 2 ms as 1 ms is marginal on a RPI4.
  • atrex77
  • atrex77's Avatar
14 Mar 2025 14:36

Developing a Raspberry Pi Pico-based I/O Board for LinuxCNC

Category: General LinuxCNC Questions

Hi everyone,
I recently ran a benchmark test on my LinuxCNC setup to measure the data request speed, and I thought I’d share the results with you all. I’d love to hear your thoughts or any suggestions for further optimization!
The setup was connected as follows: [Linux 4.19.0-27-rt-amd (core i5) PC (3 byte send 5 byte receive)] -> [switch (TL-SG1005D)] -> [W5100S-Pico]. This was a non-realtime throughput measurement, and the result I got was a stable 2500 requests/second, which I think is pretty solid. I’m curious about your experiences—has anyone else done similar benchmarks, and what do you think of this performance?

Thanks in advance for your input!

 
  • PCW
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14 Mar 2025 14:23
Replied by PCW on topic Mesa modbus and pktUart

Mesa modbus and pktUart

Category: Other User Interfaces

If you ever set the update rate to 0, you can never change it again or the driver will hang (this is a known bug)
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