Just a theoretical: would the current Marlin dual endstop support work in combination with TMC2130 stallguard / sensorless homing?
Normally, for sensorless homing you would connect the DIAG1 of your TMC2130 to the corresponding endstops (S pin). Would the changes introduced to Marlin to support dual endstops work with this setup as well? Or would this require additional firmware changes?
Would this be something to play around with? Have some TMC2130’s on the way. Or is this just a bad idea? One potential problem I’m thinking of is tuning the homing sensitivity variables: might be difficult/impossible to differentiate between hitting the end of your axis and digging into your material.
P.S. new here on the forum, love the project. Awesome work Ryan!