Error problem hm2 5i25 7i77 analogout scalemax not found ?

  • GDTH
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28 Jun 2025 11:38 #330951 by GDTH
Currently in my phone so I cannot add configs and such.
However, I redid the wiring on my devices and afterwards I no longer can connect to it. It cannot find the analog part of the 7i77. So the 5i25 is set up as 7i77 + 7i76.

The leds look alright and I have nothing to believe anything is broken. I can find Stephens and encoders through halrun. This makes me believe that it can see the cards.

Does anyone have ideas? What is wrong or I could do to troubleshoot?

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  • tommylight
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28 Jun 2025 12:02 #330953 by tommylight
Moved to "driver boards".
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What does mesaflash --readhmid return?
Check the manual on how the jumpers should be set
Check the DB25 cable if it has continuity between all pins, some cables have only 8 wires so wont work
Check the power supplies, 7i77 must have 5V and 24V power for everything to work
And make sure the 7i77 is connected to the correct header on 5i25, there are firmwares that change ports, for some reason...

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28 Jun 2025 13:07 #330954 by PCW
Seeing the encoders or stepgens just means the 5I25 configuration contains
encoders and stepgens. You would need to verify they they work by actually
testing the encoders/step/dir signals. As tommylight suggests, sounds like a
jumper/connections issue.
 
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  • GDTH
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28 Jun 2025 15:54 #330960 by GDTH
The thing is, it worked before. So i would be weird that i would need to change the jumpers.

To make some progress i swaped to a different computer with a 6i25. This one works with the cards. So the problem is not with the 7i77 or 7i76.
Im planning to put the 5i25 into a different pc, one that is a bit newer. I have reason to believe that the pci slot is 100%.

However, like you said it can see the stepgen but not the analog. i also found that weird.

Thanks :)

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28 Jun 2025 16:02 #330962 by PCW
The stepgen is in the FPGA card so it will show up regardless of whether
the daughtercard is present or not (the daughter card just buffers the stepgen signals)
 

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