older 5i25 with 7i76 not working with Linuxcnc 2.9.8

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13 Jan 2026 15:23 #341346 by Lockomat
Hi Guys,

tried to update a system with Mesa 5i25/7i76 kit, running well on wheezy 2.7 to 2.9.8.

The hostmot driver seems to have problems to see the cards. Maybe they are too old? (10-12 Years)
lspci shows a device called "DPIO 2718:5125", mesaflash does not find the 5i25
pncconf seems to see the cards and uses the correct config and mesa tabs.
But Linuxcnc doesn't start because of unknown pins(?) in the hal file
I have attached hal and ini... (See comments in hal where the wrong entries are)

Do you experienced guys see whats wrong here?

Thanks in Advance and best Regards
Stefan
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13 Jan 2026 15:55 #341348 by tommylight
Can you post whet the exact error is?

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13 Jan 2026 16:00 - 13 Jan 2026 16:37 #341349 by PCW
If mesaflash does not find the card, that seems more like a hardware/BIOS issue

Also:

setp hm2_5i25.0.dpll.01.timer-us -50
setp hm2_5i25.0.stepgen.timer-number 1

Will fail on a 5I25 that does not have a DPLL module,
so you might try commenting those lines out.


 
Last edit: 13 Jan 2026 16:37 by PCW.

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