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  • PCW
  • PCW's Avatar
08 May 2025 13:31
Replied by PCW on topic mesa 7i90hd

mesa 7i90hd

Category: Driver Boards

You can read the current firmware pinout and change the installed firmware with mesaflash

something like:

sudo mesaflash --device 7i90hd --epp --addr 0x378 --readhmid

To read the currents firmwares pinout.

or

sudo mesaflash --device 7i90hd --epp --addr 0x378 --write 7i90_epp_svst8_12_2x7i47.bit

To change the firmware to 7i90_epp_svst8_12_2x7i47.bit






 
  • fery15sty
  • fery15sty
08 May 2025 12:32
Replied by fery15sty on topic Axis Position Logger

Axis Position Logger

Category: AXIS

can this g2/g3 line use radius type R and not use i, j, k?

 
  • DarkPhoinix
  • DarkPhoinix
08 May 2025 12:18 - 08 May 2025 12:21
Replied by DarkPhoinix on topic [SOLVED]linuxcnc Latency test ambiguous results

[SOLVED]linuxcnc Latency test ambiguous results

Category: General LinuxCNC Questions

BIOS configuration:
 
  • DarkPhoinix
  • DarkPhoinix
08 May 2025 11:58 - 08 May 2025 12:00
Replied by DarkPhoinix on topic [SOLVED]linuxcnc Latency test ambiguous results

[SOLVED]linuxcnc Latency test ambiguous results

Category: General LinuxCNC Questions

I've tried everything:
in the ini I put:
#SERVO_PERIOD = 1000000
SERVO_PERIOD = 2600000
#SERVO_PERIOD =  700000
#SERVO_PERIOD =  777777
#SERVO_PERIOD = 1000000
kernel parameters:
#GRUB_CMDLINE_LINUX_DEFAULT="quiet isolcpus=2,3 r8168.EEE=0 pcie_aspm=off nohz_full=2,3 acpi_irq_nobalance noirqbalance irqaffinity=0 processor.max_cstate=0 intel_idle.max_cstate=1"

#WORKS WELL#GRUB_CMDLINE_LINUX_DEFAULT="quiet isolcpus=2,3 r8168.EEE=0 pcie_aspm=off nohz_full=2,3"

#GRUB_CMDLINE_LINUX_DEFAULT="quiet splash isolcpus=2,3 r8168.EEE=0 pcie_aspm=off nohz_full=2,3 acpi_irq_nobalance noirqbalance irqaffinity=0 processor.max_cstate=0 intel_idle.max_cstate=1 radeon.dpm=0 idle=poll"

#GRUB_CMDLINE_LINUX_DEFAULT="quiet splash isolcpus=2,3 r8168.EEE=0 pcie_aspm=off nohz_full=2,3 acpi_irq_nobalance noirqbalance irqaffinity=0,1 processor.max_cstate=0 intel_idle.max_cstate=1 radeon.dpm=0 idle=poll"

#GRUB_CMDLINE_LINUX_DEFAULT="quiet splash isolcpus=2,3 r8168.EEE=0 pcie_aspm=off nohz_full=2,3 acpi_irq_nobalance noirqbalance irqaffinity=0,1 processor.max_cstate=0 intel_idle.max_cstate=1 idle=in"

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash isolcpus=2,3 r8168.EEE=0 pcie_aspm=off nohz_full=2,3 irqaffinity=0,1 processor.max_cstate=0 intel_idle.max_cstate=1 idle=poll"

it doesn't work, I get improvements and delays in the error but while using YouTube sooner or later the job fails.
I'm understanding that LinuxCNC only works with specific hardware systems and it's not possible to use it everywhere. I have also tried 3 completely different hardware setups, and the other 2 have impressive latencies.
One of which is new hardware with integrated video card, Alder Lake N95 CPU, and 16GB of RAM.
So the question is: what hardware supports LinuxCNC? What hardware should a user buy who wants to use LinuxCNC?
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