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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...

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?

Compress your config folder and post it here.

I'm doing some boards up that will use shift registers so I will do some testing, and see what happens. Worst case is I design it so that the shift register outputs aren't enabled until Linuxcnc is started and communicating with the FPGA. 

Cheers.
Russell.

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899usd for spindle + 6 tool holder
if you want vfd and accessories please contact me

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I am trying to set a scara robot with a remora card, conected by ethernet, i can made to can work with the 4 motors that i need but when i try to put the scarakins. the joints work quite well,but when i home it i cannot move the axis on x and z. and i dont have any idea why this is happening.
 

yeah that should be the only option he needs in the INI file, the one in [TRAJ] LINEAR UNITS

the ai shit up your ini file. you need to fix these sections. I dont know what angular inch U axis is or a linear spindle.

Does it include the speed controller or just the spindle?

I succeeded LC10E driver homing with incremental encoder + origin, limit switch with my own homing codes.

I added HOME_FINAL_VELOCITY to the AXIS_X / JOINT_0 section(s). I set it to match the value for the HOME_SEARCH_VEL and HOME_LATCH_VEL. I also increased the HOME_OFFSET to -.500000 to make sure there was some visible movement. Nothing changed - it locked up trying to move the axis.

Here is that section of the INI file - in case any of the other entries look odd.

#*** AXIS_X *******************************
[AXIS_X]
MAX_VELOCITY = 1.0
MAX_ACCELERATION = 30.0
MIN_LIMIT = -0.01
MAX_LIMIT = 8.0

[JOINT_0]
TYPE = LINEAR
HOME = 0.0
MIN_LIMIT = -0.01
MAX_LIMIT = 8.0
MAX_VELOCITY = 1.0
MAX_ACCELERATION = 30.0
STEPGEN_MAXACCEL = 37.5
SCALE = 8000.0
FERROR = 0.05
MIN_FERROR = 0.01
HOME_OFFSET = -.500000
HOME_SEARCH_VEL = -0.050000
HOME_LATCH_VEL = -0.050000
HOME_FINAL_VELOCITY = -0.050000
HOME_IGNORE_LIMITS = YES
#******************************************

Should be done in CAM, not in LinuxCNC.
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Seems strange to do that on every cut, although i had a Hypertherm that would need a bit of a pause only on short cuts, but 3 sec. max. so i added that to Inkscape.

It is almost certainly pssible, but probably not particularly easy to set up.

Why did you decide to switch from Mach 3 to LinuxCNC?

Set the HOME_FINAL_VELOCITY to something smaller.
If they are not in the ini file, add them for each joint.

I'm not sure if you were asking me to upload a video to YouTube showing what is happening - but that's what I did. The video link is here:

youtube.com/shorts/D5WTf5WWpfo

It's very hard to 'see' or hear - but as part of the homing function, the axis slowly approaches the limit switch, then moves away, then back and finally 'jumps' away from the switch.

I tried changing the MAX_ACCELERATION setting in the .INI - in both the AXIS_X and JOINT_0 sections. I halved them but it made no difference. I also attempted to move the sliders at the bottom of the LinuxCNC screen (below the jog section) way down one at a time - but that made now changes.

If I try to run even a simple shape (gcode for a small rectangle) it just 'locks up' like you see in the video when I attempt to press the 'SHIFT-(any arrow).

I'm just buffalo'd - I cannot figure it out.

Arden