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    M569 for choosing stealth chop is not working

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    • Skimmy
      Skimmy last edited by

      If I do send

      M569 P0 S0 D3

      via console, I get the error message:

      Error: M569: Driver 0 does not support mode 'stealthChop'

      But the docs clearly say that the DUET uses TMC2660 and lists TMC2660 as stealth chop capable. Am I missing something?

      Im running the latest firmwares with a DUET + DUEX5:

      Firmwarename: RepRapFirmware for Duet 2 WiFi/Ethernet
      Firmware Elektronik: Duet WiFi 1.02 or later + DueX5
      Firmware Version: 2.02(RTOS) (2018-12-24b1)
      WiFi Server Version: 1.22
      Web Interface Version: 1.22.6

      my blog: https://www.well-engineered.net

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      • nhof
        nhof last edited by

        Stealth chop is for the TMC2224 drivers on the Duet Maestro.

        The TMC2660 drivers on the Duet 2 do not have stealth chop capability.

        1 Reply Last reply Reply Quote 0
        • Skimmy
          Skimmy last edited by

          ah, thx for clarifying. Then, the docu is a bit misleading 😕

          https://duet3d.dozuki.com/Wiki/Gcode#Section_M569_Set_motor_driver_direction_enable_polarity_and_step_pulse_timing

          Dnn (firmware 2.0 and later, only applies to TMC2660 and TMC22xx stepper drivers) Driver mode: 0=constant off time, 1=random off time, 2=spread cycle, 3=stealthChop or stealthChop2. The default is spreadCycle for TMC2660 drivers and stealthChop2 for TMC22xx. In stealthChop mode the drivers will switch over to spreadCycle automatically at high speeds, see the V parameter.

          my blog: https://www.well-engineered.net

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          • nhof
            nhof last edited by

            I updated the docs to clarify that mode 3 only applies to the TMC22xx drivers.

            seraser 1 Reply Last reply Reply Quote 1
            • seraser
              seraser @nhof last edited by

              @nhof OK, 22xx is not 2208 with external adapte, so I think no support for 2208

              Thank you

              dc42 1 Reply Last reply Reply Quote 0
              • dc42
                dc42 administrators @seraser last edited by

                @seraser said in M569 for choosing stealth chop is not working:

                @nhof OK, 22xx is not 2208 with external adapte, so I think no support for 2208

                Thank you

                Duet Maestro supports two external TMC2208 or TMC2224 drivers. Duet WiFi and Ethernet only support TMC2660 and dumb step/direction/enable drivers.

                Duet WiFi hardware designer and firmware engineer
                Please do not ask me for Duet support via PM or email, use the forum
                http://www.escher3d.com, https://miscsolutions.wordpress.com

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                • seraser
                  seraser last edited by

                  Ok, thank you, but is strange, to much over extrusion with defaults settings.

                  dc42 1 Reply Last reply Reply Quote 0
                  • dc42
                    dc42 administrators @seraser last edited by

                    @seraser said in M569 for choosing stealth chop is not working:

                    Ok, thank you, but is strange, to much over extrusion with defaults settings.

                    Are the microstepping jumpers set correctly for x16 ? Have you set the correct steps/mm ?

                    Duet WiFi hardware designer and firmware engineer
                    Please do not ask me for Duet support via PM or email, use the forum
                    http://www.escher3d.com, https://miscsolutions.wordpress.com

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                    • seraser
                      seraser last edited by

                      Ohh, you are right, maybe my jumpers, three inserted and I now think only two are needed for TMC2208, I will check.

                      Thank you.

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