Retrofit Gloria Europa 2/40 machining centre

That would use standard 7I77+7i76 firmware

backtime wrote: So here we go, the boards are a 6i25 + 7i76 + 7i77 + 7i84. With this i can put my machine on service.

Now i have a question, for this combination i need a custom firmware?

No, that will work with a stock firmware, there is one for 5i25 (the 6i25 uses 5i25 firmware) and 7i76 + 7i77. The 7i84 will be auto-detected.

You will need one of these: www.amazon.co.uk/StarTech-Profile-Bracke...parallel+port+header (or similar) to connect to the second header.

Yes, even PCW had confirmed to me that the stock firmware is suitable and we already have the IDC-26 adapter, now we wait for the cards to arrive.

Thanks to everyone.

I finally have the time to continue with the work of retrofit and I would need some information.

I bought a mini-ITX Asus H170I PLUS-D3 motherboard, very nice board, i have disabled all power
management features and audio and left enabled ethernet, integrated wifi and onboard GPU, stock
linuxcnc 2.7 is installed on SSD.

Now with this configuration and isolcpus=1 on linux command line i have very good jitter:
servo thread max jitter: 8230
base thread max jitter: 7892
even if the overall performance is not so good under heavy load.

With same configuration but without isolcpus command line option i have this jitter values:
servo thread max jitter: 24000
base thread max jitter: 28550
and the overall performance is very good

This last values are too hight for software stepper but i use mesa cards for step generation and encoder count,
so are the last values suitable for mesa or i have to go with isolcpus?

Thanks for replies.

As a rough rule for mesa systems at 1 KHz servo thread:

50000 ns latency is OK for the standard position mode stepgen

100000 ns latency is OK if the PID stepgen setup is used in HAL

500000 ns latency is OK if a firmware with DPLL + PID stepgen are used

So I would definitely _NOT_ use isolcpus, it will do nothing but make the system slower

Thank you for fast response PCW, i'll go without isolcpus.