Topics created by aetherialdesign

@aetherialdesign thanks for reporting the fix appears to have worked. I am closing the github issue we opened for this:
https://github.com/Duet3D/RepRapFirmware/issues/1081

T3P3 created this issue in Duet3D/RepRapFirmware closed 3.6.b3 mainboards as expansion boards disconnect during printing #1081

@aetherialdesign if you haven't already done so, make sure there is a delay command (e.g. G4 S2) near the start of the main board config.g file, before any command that refers to the expansion board. This is to make sure that the expansion board has time to start up and switch into expansion mode before the main board tries to communicate with it.

Awesome, thanks!
The short answer I glean here is that options exist for the setup I wanted to do and it isn't exactly reinventing the wheel. But there are some minor potential issues with setup that may/may not be addressed in coming releases.

Guess that's enough to start working towards laying out the CAD. And choose which board gets dedicated to the application down the road.

Note to repairer for this board: check the BAT40V diodes and mosfet gate series resistors. If those are OK then replace the output mosfets for that phase.