New and Working RTAI debs for 2.9

More
9 months 2 weeks ago #341408 by tommylight
Base period is in the .ini file inside your configuration folder, usually
/home/cnc/linuxcnc/configs/sim.axis
instead of cnc you will have your user name
As for latency screenshots, see those colorful vertical lines on both sides of the graph? Those mean there are latency excursions outside the visible area, so add --show at the end of latency-histogram line and test again.

Please Log in or Create an account to join the conversation.

More
9 months 2 weeks ago #341428 by cnbbom
I hope I got it right this time.image missing /media/kunena/emoticons/laughing.png

Please Log in or Create an account to join the conversation.

More
9 months 2 weeks ago #341431 by tommylight
Code:
[EMCMOT] EMCMOT = motmod COMM_TIMEOUT = 1.0 BASE_PERIOD = 46872 SERVO_PERIOD = 1000000
Your base period is set at 46872, strange for sure, but i am pretty sure LinuxCNC will round it to something divisible from 1000000. Set it to 50000.
Still i do not think that is the main issue, it seems your PC has some strange and huge excursions in latency, so, did you disable in BIOS:
turbo
speed step
power saving options
TPM if any
PCI-E aggressive power saving (no idea what name is used in some boards)
C states
etc.
Be as it may, for that PC and since you need RTAI, use the Wheezy ISO as is, granted you do not need any missing features from it.
You can download and test Wheezy without installing it, see how that works out.

Please Log in or Create an account to join the conversation.

More
9 months 2 weeks ago #341436 by cnbbom

tommylight post=341431 userid=17274

Code:
[EMCMOT] EMCMOT = motmod COMM_TIMEOUT = 1.0 BASE_PERIOD = 46872 SERVO_PERIOD = 1000000 Your base period is set at 46872, strange for sure, but i am pretty sure LinuxCNC will round it to something divisible from 1000000. Set it to 50000.
 

Será que estou inserindo valores incorretos para o Jitter Máximo do Período Base ao configurar uma máquina no Assistente de Configuração do Motor de Passo?

Please Log in or Create an account to join the conversation.

More
9 months 2 weeks ago - 9 months 2 weeks ago #341465 by NWE
Latency test is only used for testing the pc, don't use the jitter value for BASE_PERIOD, try 50000.
Last edit: 9 months 2 weeks ago by NWE.

Please Log in or Create an account to join the conversation.

More
9 months 2 weeks ago #341515 by cnbbom
tommylight and NWE

Well, with a value of 46872, Linux CNC runs at maximum speed, but if I change it to 50000 I get an error message.

I'd also like to ask a question: on a normal machine that is acceptable for running Linux CNC, what are the minimum and maximum acceptable values ​​for BASE_PERIOD?

Please Log in or Create an account to join the conversation.

Time to create page: 0.069 seconds
Powered by Kunena Forum