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    Duet 2 Ethernet and SBC

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    Beta Firmware
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    • SAtechundefined
      SAtech
      last edited by

      Well it seems that by twisting MOSI, MISO, and SCK with ground has basically solved my issue. I am now getting NO errors, and I can print successfully. Seems there was significant crosstalk in the lines.

      The only thing that is a little troublesome is sometimes the movement is quite jerky. Like in a long travel move it will just stop for a few ms and resume, as if the duet is choking on step generation. I don't think this is happening, but that's how I can best describe it.

      A Former User? wilrikerundefined 2 Replies Last reply Reply Quote 0
      • wilrikerundefined
        wilriker @arhi
        last edited by

        @arhi said in Duet 2 Ethernet and SBC:

        and 8 MHz should be a brieze ...

        Just as a benchmark: the maximum the Duet can achieve reliably is around 27MHz.

        Manuel
        Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
        with probably always latest firmware/DWC (incl. betas or self-compiled)
        My Tool Collection

        1 Reply Last reply Reply Quote 0
        • A Former User?
          A Former User @SAtech
          last edited by

          @SAtech said in Duet 2 Ethernet and SBC:

          as if the duet is choking on step generation

          should show up in M122?

          1 Reply Last reply Reply Quote 0
          • wilrikerundefined
            wilriker @SAtech
            last edited by

            @SAtech said in Duet 2 Ethernet and SBC:

            The only thing that is a little troublesome is sometimes the movement is quite jerky. Like in a long travel move it will just stop for a few ms and resume, as if the duet is choking on step generation. I don't think this is happening, but that's how I can best describe it.

            If that persists please open a new thread (since this one is getting very long and a bit hijacked 😉 ) and include your config.g as well as the M122 output that @bearer mentioned and a sample GCode file.

            Manuel
            Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
            with probably always latest firmware/DWC (incl. betas or self-compiled)
            My Tool Collection

            1 Reply Last reply Reply Quote 0
            • wilrikerundefined
              wilriker
              last edited by

              @smoki3 After what felt like ages (sorry for that) I finally got to rig up a Duet 2 + DueX5 + SBC. It's just a bench setup but at least I attached steppers, a thermistor and a PT1000. I intentionally ran all stepper wires over the SPI wires but I cannot see a single checksum error or any problems at all.

              wiringmess.jpg

              Did you retest with latest RRF 3.2-beta2? If you still experience your problems please provide me with your full 0:/sys directory contents as well as all possibly other required macros and a GCode file so I can try to reproduce it.

              Manuel
              Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
              with probably always latest firmware/DWC (incl. betas or self-compiled)
              My Tool Collection

              smoki3undefined jlipavsky79undefined 2 Replies Last reply Reply Quote 0
              • smoki3undefined
                smoki3 @wilriker
                last edited by

                @wilriker I have only tested with 3.2 beta 1.

                Have you tried stall detection on a core xy? The tool changer has 6 axis and all are homed with stall detection.

                If I find some time I will assemble my duet Ethernet again to check if its fixed on beta 2.

                wilrikerundefined 1 Reply Last reply Reply Quote 0
                • wilrikerundefined
                  wilriker @smoki3
                  last edited by

                  @smoki3 As you can see it's simply something cobbled together on my desk. It is configured as a simple 3 axis Cartesian and is only pseudo-homed using G92 XYZ. So maybe that is the problem already. If possible you could test if it works for you if you use G92 as well. Maybe it's just stallDetect that fails.

                  Manuel
                  Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                  with probably always latest firmware/DWC (incl. betas or self-compiled)
                  My Tool Collection

                  smoki3undefined 1 Reply Last reply Reply Quote 0
                  • smoki3undefined
                    smoki3 @wilriker
                    last edited by

                    @wilriker said in Duet 2 Ethernet and SBC:

                    @smoki3 As you can see it's simply something cobbled together on my desk. It is configured as a simple 3 axis Cartesian and is only pseudo-homed using G92 XYZ. So maybe that is the problem already. If possible you could test if it works for you if you use G92 as well. Maybe it's just stallDetect that fails.

                    As far I remember homing was one of the main issue. But let me check again with beta 2. I will come back to you

                    wilrikerundefined 1 Reply Last reply Reply Quote 0
                    • seraserundefined
                      seraser
                      last edited by seraser

                      Can anybody explain me advantages of sbc attached to duet?

                      A Former User? arhiundefined jay_s_ukundefined 3 Replies Last reply Reply Quote 0
                      • wilrikerundefined
                        wilriker @smoki3
                        last edited by

                        @smoki3 said in Duet 2 Ethernet and SBC:

                        As far I remember homing was one of the main issue. But let me check again with beta 2. I will come back to you

                        I tried stallGuard as endstop now (manually blocking the motor shafts) and still no problems. So maybe putting the LinuxInterface into its own FreeRTOS task solved it eventually. Looking forward to your feedback.

                        Manuel
                        Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                        with probably always latest firmware/DWC (incl. betas or self-compiled)
                        My Tool Collection

                        smoki3undefined 1 Reply Last reply Reply Quote 0
                        • A Former User?
                          A Former User @seraser
                          last edited by

                          @seraser said in Duet 2 Ethernet and SBC:

                          Can anybody explain me advantages of sbc attached to duet?

                          for now not much more than being able to run DWC on a hdmi touch screen instead of paneldue (and more flexible networking as you'll have both wifi and ethernet).

                          but as plugins are added to DSF it will offer added functionality (and of course its easier to develop your own stuff on the pi rather than in the reprap firmware)

                          1 Reply Last reply Reply Quote 0
                          • arhiundefined
                            arhi @seraser
                            last edited by

                            @seraser said in Duet 2 Ethernet and SBC:

                            Can anybody explain me advantages of sbc attached to duet?

                            none attm

                            probbly "plugins" in future, plugins that will be capable of modifying g-code real time while printing (like octoprint for e.g.)

                            1 Reply Last reply Reply Quote 0
                            • seraserundefined
                              seraser
                              last edited by

                              Thank you @bearer and @arhi so I will not play with my rasp4.

                              1 Reply Last reply Reply Quote 0
                              • jay_s_ukundefined
                                jay_s_uk @seraser
                                last edited by

                                @seraser the wifi is much better using an SBC than the wifi onboard. That's about it

                                Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                                seraserundefined arhiundefined 2 Replies Last reply Reply Quote 0
                                • seraserundefined
                                  seraser @jay_s_uk
                                  last edited by

                                  @jay_s_uk I know WiFi is weak in duetwifi so I've installed wifi repetier near for three printers with duetwifi, thank you.

                                  1 Reply Last reply Reply Quote 0
                                  • arhiundefined
                                    arhi @jay_s_uk
                                    last edited by

                                    @jay_s_uk rpi's wifi is not that good neither 😄

                                    1 Reply Last reply Reply Quote 0
                                    • smoki3undefined
                                      smoki3 @wilriker
                                      last edited by

                                      @wilriker so I assembled again my duet 2 ethernet/sbc today to my tool changer. I tried beta 2 and self compiled version from today. Both are not working. Still not able to home my axis. The printer is hanging for ever.

                                      I still get some of these in my console:

                                      	Warning: Lost connection to Duet (Timeout while waiting for transfer ready pin)
                                      

                                      Please find attached the macros and config

                                      https://drive.google.com/file/d/1FoRAUD1e0sretY_o9-dE64mefawPdo6K/view?usp=sharing
                                      https://drive.google.com/file/d/1e9l60tG5hqTCH676g0_RTc9dDypd09Uk/view?usp=sharing

                                      jay_s_ukundefined arhiundefined 2 Replies Last reply Reply Quote 0
                                      • jay_s_ukundefined
                                        jay_s_uk @smoki3
                                        last edited by

                                        @smoki3 that error pretty much always points to a wiring issue.
                                        We get that a lot on the LPC/STM port when new users first start out so I would go back to inspecting your wiring.

                                        Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is

                                        smoki3undefined 1 Reply Last reply Reply Quote 1
                                        • arhiundefined
                                          arhi @smoki3
                                          last edited by

                                          @smoki3 are you using duex too? if I remember correctly duet2+sbc is not working if you use duex too ... I might be wrong

                                          smoki3undefined 1 Reply Last reply Reply Quote 0
                                          • gloomyandyundefined
                                            gloomyandy
                                            last edited by

                                            @smoki3 "Warning: Lost connection to Duet" may mean that the firmware has stopped responding. Are you getting any sort of firmware reset/crash?

                                            smoki3undefined 1 Reply Last reply Reply Quote 0
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