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    Duet3 : DCS is not started

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    • reFlexlab
      reFlexlab last edited by

      Hello everyone,

      I have been trying for 3 days know to make DuetWebControl work and I always get the same message :"Failed to connect to Duet, please check your connection (DCS is not started)."

      here is what I am currently using (Duet3 MB6HC + RPI4).

      • Fresh SD card with : 2021-02-15-DuetPi.img installed
      • I have successfully run
        sudo apt update
        sudo apt upgrade
      • I have also tried to install the last Duet Firmware using BOSSA which went ok.
      • I have no SD card in my Duet (only in the Pi)
      • I am powering the Duet from a usb Hub (My jumper for 5v selection is well setup
      • My Diag led is constantly blinking.

      Do you have any idea on what I should do ?

      Thanks 🙂

      @ reFlexLab Paris # MMMM project
      Modular Multimaterial Multiprocess Manufacturing

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      • jay_s_uk
        jay_s_uk last edited by

        can you get the duet 3 up and running in standalone mode and confirm you are running the latest firmware? i.e. 3.2.2

        Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF

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        • reFlexlab
          reFlexlab last edited by

          There is no other way to see which firmware is install on the duet other than switching to standalone mode?

          In order to switch in standalone mode, il need to prepare a SD card with the good structure and send a M115 via BOSSA right?

          @ reFlexLab Paris # MMMM project
          Modular Multimaterial Multiprocess Manufacturing

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

            @reFlexlab said in Duet3 : DCS is not started:

            In order to switch in standalone mode, il need to prepare a SD card with the good structure and send a M115 via BOSSA right?

            If the RRF version is recent then any SD card will do, even a blank one. Connect using YAT or another terminal emulator.

            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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            • reFlexlab
              reFlexlab last edited by

              Hello,
              I have just run the Duet 3 in standalone mode and connected myself via Yat and sended a M115 command, here is what i get :

              M115
              FIRMWARE_NAME: RepRapFirmware for Duet 3 MB6HC FIRMWARE_VERSION: 3.2.2 ELECTRONICS: Duet 3 MB6HC v1.01 or later FIRMWARE_DATE: 2021-02-11
              ok

              @ reFlexLab Paris # MMMM project
              Modular Multimaterial Multiprocess Manufacturing

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              • chrishamm
                chrishamm administrators last edited by

                That's looking good so it sounds like you may have a dodgy connection between the Duet and the Pi. And of course make sure to remove the microSD card again from the Duet before you power it up for SBC mode.

                When you have the Pi started and you see the error message again, please do the following:

                1. Press F11 to leave fullscreen mode
                2. Open a terminal
                3. Run sudo journalctl -u duetcontrolserver -ef
                4. Check what error message is reported when DCS starts

                Duet software engineer

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

                  Thank you Chris,

                  Here is the error message that I get :

                  "Could not connect to duet (Timeout while wainting for transfer ready pin)"
                  duetcontrolserver .service : Failed with result 'protocol'

                  @ reFlexLab Paris # MMMM project
                  Modular Multimaterial Multiprocess Manufacturing

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                  • reFlexlab
                    reFlexlab @chrishamm last edited by

                    @chrishamm IMG_20210217_151538.jpg

                    @ reFlexLab Paris # MMMM project
                    Modular Multimaterial Multiprocess Manufacturing

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                    • jay_s_uk
                      jay_s_uk last edited by

                      can you post a photo of the connection between the duet and the SBC?

                      Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF

                      reFlexlab 1 Reply Last reply Reply Quote 0
                      • chrishamm
                        chrishamm administrators last edited by

                        Yes, I suppose there is a problem with the connection of pin 22 from the Duet to the Pi. Any chance you can measure the continuity of that particular pin of the ribbon cable?

                        Duet software engineer

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

                          @jay_s_uk IMG_20210217_153611.jpg IMG_20210217_153639.jpg

                          @ reFlexLab Paris # MMMM project
                          Modular Multimaterial Multiprocess Manufacturing

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                          • reFlexlab
                            reFlexlab @chrishamm last edited by

                            @chrishamm Apparently, there is continuity .

                            Here what we used to check it .

                            IMG_20210217_154404.jpg IMG_20210217_154446.jpg

                            @ reFlexLab Paris # MMMM project
                            Modular Multimaterial Multiprocess Manufacturing

                            chrishamm 1 Reply Last reply Reply Quote 0
                            • chrishamm
                              chrishamm administrators @reFlexlab last edited by

                              @reFlexlab Thanks for test this. There are a few more things you can try next to help identify if the problem is the Duet or the Pi:

                              1. Please check the continuity of that particular pin with the ribbon cable connected to both sides, that is to the Duet and to the Pi.
                              2. With the ribbon cable disconnected from the Pi, connect pin 1 of the RaspPi (3.3V) to pin 22 of the expansion header. Then run gpioget gpiochip0 25 from a terminal. It should output 1 to indicate that the transfer ready pin reads +3.3V. If it reads 0 even with the cable connected, the Pi is damaged and you should replace it.
                              3. If it worked, power up the Duet via USB and turn it around. You can then measure the voltage between GND and TfrRdy (pin 22), which should again read +3.3V.

                              Duet software engineer

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                              • reFlexlab
                                reFlexlab last edited by

                                @chrishamm said in Duet3 : DCS is not started:

                                0

                                Thank you , I have tested this setup and the Terminal output 0, when i test for the Raspberry Pi.

                                I have also tested the tension between Ground and PIN 22 on the expension Header of the Duet, which output 0 volt

                                I will send you the photo of our setup.

                                @ reFlexLab Paris # MMMM project
                                Modular Multimaterial Multiprocess Manufacturing

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                                • reFlexlab
                                  reFlexlab last edited by

                                  IMG_20210218_182508-min.jpg IMG_20210218_182503-min.jpg

                                  @ reFlexLab Paris # MMMM project
                                  Modular Multimaterial Multiprocess Manufacturing

                                  chrishamm 1 Reply Last reply Reply Quote 0
                                  • chrishamm
                                    chrishamm administrators @reFlexlab last edited by chrishamm

                                    @reFlexlab You are not testing with the right pins (see https://pinout.xyz/pinout/pin22_gpio25#) because your cable is connected to GND. When you connect the jumper cable to the +3.3V pin, make sure you do not connect it to +5V, else you'll break your Pi. The previous photo looks OK though.

                                    If the TfrRdy pin on the Duet stays at 0V even with no SD card in the Duet and RRF 3.2.2 running, I suspect the board is damaged. If you can confirm that you probed the correct pin on the Duet side, I suggest you do a warranty exchange.

                                    Duet software engineer

                                    reFlexlab 2 Replies Last reply Reply Quote 0
                                    • reFlexlab
                                      reFlexlab @chrishamm last edited by

                                      @chrishamm
                                      Hello,
                                      1 - I will test with a new raspberry Pi this afternoon to see if it changeg anything.

                                      2 - I will send you a photo of my experimental setup to check the Trfdy Pin is working on the Duet.

                                      If the board is damaged, How its working to make a waranty exchange ?

                                      Tom

                                      @ reFlexLab Paris # MMMM project
                                      Modular Multimaterial Multiprocess Manufacturing

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                                      • reFlexlab
                                        reFlexlab @chrishamm last edited by

                                        @chrishamm
                                        Hello Chris,

                                        1- I have retested the Raspberry Pi with the right pin using the

                                        gpioget gpiochip0 25
                                        

                                        here are the results

                                        IMG_20210225_093759-min.jpg IMG_20210225_093750-min.jpg

                                        2 - Regarding the Duet, I have tested the TrfRdy Pin again and it seems to display 0 V.
                                        I think the Duet is Borken.

                                        IMG_20210224_190202-min.jpg IMG_20210224_190018-min.jpg

                                        I think i know why this happened :

                                        I use a power a 24V MeanWell power supply, I think i reversed the VIN + and - . But after reading the How To destroy your Duet I saw that modern power supply could not cause this because of a protection.

                                        Thank you for your Help.

                                        Tom

                                        @ reFlexLab Paris # MMMM project
                                        Modular Multimaterial Multiprocess Manufacturing

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                                        • toy4x4
                                          toy4x4 last edited by

                                          Just pointing out I have this same issue and the exact same results with all the testing as the above. I a nutshell, the Duet3 no longer outputs 3.3v to signal the PI on pin 22.

                                          Board bought May 11th from Filastruder. Was getting ready to print my 4th Benchy on a new system. Had turned the system off (Duet3 powers PI). When I turned it back on, it no longer worked.

                                          Phaedrux 1 Reply Last reply Reply Quote 0
                                          • Phaedrux
                                            Phaedrux Moderator @toy4x4 last edited by

                                            @toy4x4 Perhaps best to start a new thread so we can investigate.

                                            Z-Bot CoreXY Build | Thingiverse Profile

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                                            • AurĂ©
                                              Auré last edited by

                                              Hello,

                                              I don’t understand because I have 3,3v beetwen ground and pin 22 and I have DCS error. This error appear after maybe I made a mistake, I have duet 3 with pi 3b+ and I send a Duet3Firmware_MB6HC.bin with DWC with the system page….. I think I m lost (Sorry for my english)

                                              Phaedrux 1 Reply Last reply Reply Quote 0
                                              • Phaedrux
                                                Phaedrux Moderator @Auré last edited by

                                                @auré Please start a new thread with more details.

                                                Z-Bot CoreXY Build | Thingiverse Profile

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