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  • hitchhiker
  • hitchhiker
23 Mar 2025 21:24
Replied by hitchhiker on topic Raspberry Pi 4 and bad latency.. SOLUTIONS?

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

aaaah ok... i dont undeestand because i see in the middle the big Mountain.. but left and right only 2 small stripes...

i trust what you say but dont understand in all.
  • looping
  • looping
23 Mar 2025 15:23
Replied by looping on topic Trying out LinuxCNC on Raspberry PI5

Trying out LinuxCNC on Raspberry PI5

Category: General LinuxCNC Questions

Is it possible to use the Master version on a Pi5 ?
  • unknown
  • unknown
23 Mar 2025 15:04
Replied by unknown on topic Raspberry Pi 5 CNC configuration software

Raspberry Pi 5 CNC configuration software

Category: Show Your Stuff

Ok I see it's a windows EXE, correct ?

What Mesa boards does it cover ?
What issue were you having with the supplied tools with Linuxcnc ?
  • tommylight
  • tommylight's Avatar
23 Mar 2025 11:30
Replied by tommylight on topic Raspberry Pi 4 and bad latency.. SOLUTIONS?

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

Latency excursions beyond the visible graph area.
  • hitchhiker
  • hitchhiker
23 Mar 2025 08:13
Replied by hitchhiker on topic Raspberry Pi 4 and bad latency.. SOLUTIONS?

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

and what does this mean? thanks
  • Aciera
  • Aciera's Avatar
23 Mar 2025 07:52 - 23 Mar 2025 07:53
Replied by Aciera on topic Raspberry Pi 4 and bad latency.. SOLUTIONS?

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

same values or i am wrong??


Note the missing spikes (colored in blue/red) at the extreme left and right of the graph.
  • hitchhiker
  • hitchhiker
23 Mar 2025 07:47
Replied by hitchhiker on topic Raspberry Pi 4 and bad latency.. SOLUTIONS?

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

or a 7i92... i payed for both cards 100 euros...

so for my information... on a normal pc like optiplex 3020m or lenovo m73 tiny.. i have latency under 2000... but i never looked this way in the histogram.

can you explain me the spike?! please
  • rodw
  • rodw's Avatar
23 Mar 2025 07:27

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

Assuming you use the 7c81's FGPA for stepgen and don't sofware step, you don't need a base thread so latency requirements is much relaxed. I'd be happy with anything under 130,000 with 200,000 at a pinch
  • hitchhiker
  • hitchhiker
23 Mar 2025 06:35
Replied by hitchhiker on topic Raspberry Pi 4 and bad latency.. SOLUTIONS?

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

on ny m73 i have a jitter of 1000... so what is the reason thst you say that this latency is good???? thanks
  • diy
  • diy
23 Mar 2025 02:33

Raspberry Pi 5 CNC configuration software

Category: Show Your Stuff

Raspberry Pi 5 CNC Configuration Software Raspberry Pi 5 has much stronger performance than Raspberry Pi 4, and runs LINUXCNC software very smoothly. It is often difficult for enthusiasts to configure themselves. I have written this software, which allows users to simply fill in Raspberry Pi GPIO pins and export HAL files directly. Welcome to try it out. 
  • rodw
  • rodw's Avatar
22 Mar 2025 21:25

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

Your latency is a pass, move on
  • tommylight
  • tommylight's Avatar
22 Mar 2025 16:52
Replied by tommylight on topic Raspberry Pi 4 and bad latency.. SOLUTIONS?

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

Much better, move on to wiring and making chips!
Keep an eye when starting LinuxCNC if it complains about latency, it shows a warning usually when enabling it or later during use.
  • hitchhiker
  • hitchhiker
22 Mar 2025 14:25
Replied by hitchhiker on topic Raspberry Pi 4 and bad latency.. SOLUTIONS?

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

same values or i am wrong??


 


thanks
  • hitchhiker
  • hitchhiker
22 Mar 2025 13:59
Replied by hitchhiker on topic Raspberry Pi 4 and bad latency.. SOLUTIONS?

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

I forget 1 thing.. i use a 64gb micro sd card from the brand kexin from amazon.

amzn.eu/d/hXGglyV
  • tommylight
  • tommylight's Avatar
22 Mar 2025 13:56
Replied by tommylight on topic Raspberry Pi 4 and bad latency.. SOLUTIONS?

Raspberry Pi 4 and bad latency.. SOLUTIONS?

Category: Installing LinuxCNC

try this
latency-histogram --nobase --sbinsize 1000 --show
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