How are the TMC2660 drivers hooked up?
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I see that the DuetWiFi uses the TMC2660 stepper drivers. These drivers have a number of features, including stall detection. Are these available to the firmware? I guess the easiest way would be if all the drivers were accessible over SPI? Or is only step/direction available?
Presumably one would need to modify the firmware, that's not a problem.
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The drivers are connected by SPI. For reference the full electronics source are available here:
https://github.com/T3P3/Duet/tree/master/DuetWifiv1.0The firmware wish list forum is where to discuss implementation of stall guard etc in firmware. I know David has it.on the list as part of the overall work on managing stepper power as part of advanced power management.
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Thanks! I tried looking at the schematics but got nothing but blank outlines; I assume it's because my Kicad is set up wrong (never used it before).
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Tony, are you going to put a pdf schematic on github too?
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Done:
https://github.com/T3P3/Duet/blob/master/DuetWifiv1.0/DuetWifi_Schematic.pdf
For KiCAD you need to use at least version 4.0.2. The custom parts are in the distribution on Github, you might need to point your libraries path at that, I thought it was relative within the project but maybe its not.
edit: added a page to the wiki that links to the source files:
https://duet3d.com/wiki/Source_Files
