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Rat Rig Community [Unofficial]•2y ago

MichaelKnight

Unable to read tmc uart 'stepper_z' register IFCNT

Hello, i have the vcore 3.0 500

steppers from ratrig
tmc 2209
btt skr pro 1.2
raspberry pi 3b
revo hemera xs
running klippers with mainsail

I've been setting up the machines and now i'm at the point where klippers will give me no error when i load it up I can heat up the bed and extruder, but when i try to do any move z, x, y or even extruder, i get the error in the title and all of the fans start spooling, then i have to reset the btt. Now, i'm not sure if i have 2 issues but......

I noticed that some of the little led lights that coincide with each driver are not all on ( or off ). The three on top for the z drivers are lit up red, the extruder is off, but the xy left led is on, while the right is off ( see pic ).
possible problem #1
---- so i did a bit of experimenting, and i unplugged my end stops, and now i have all lights on except for just the extruder led.
---- turns out it's the x end stop that makes the bottom led go off. i switched the wires, and same thing. plug in only the Y end stop and all lights on ( bottom 2 + the three top ones, no extruder light )
problem #2
---- I reboot the mcu and the extruder driver light will flash then back off again.
----i unplug the extruder stepper motor, and i pull out the stepper driver and now the led is on.

1. the error message? anyone know what happening?
2. is the extruder led light supposed to be off? shouldn't it be on?
3. shouldn't the 2 endstop leds be off when you cut off the diagnostic pins off the driver? ( read that somewhere )
4. anyone have the same setup that can verify the led status on all of the steppers?

2 steps forward, 1 step back
i hope someone can give some insight. thanks!