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    CAN connectivity: Duet 3 MB6HC to EXP3HC

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    • dc42undefined
      dc42 administrators @kroybal
      last edited by dc42

      @kroybal said in CAN connectivity: Duet 3 MB6HC to EXP3HC:

      The light is not on for the 45 sec duration, then flickers for about 3 seconds before syncing up with the MB.

      Thanks, that confirms that either the new firmware does not fix the slow crystal oscillator startup issue on your board, or the built-in on-chip RC oscillator is way out of calibration. If it's the oscillator startup time that's causing the problem then I should be able to fix it in firmware.

      I would like to try one more firmware change before we swap your board. As you are US-based, I will work on this tonight, so that I should be able to send you updated firmware before the end of your day.

      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

      kroybalundefined 1 Reply Last reply Reply Quote 0
      • kroybalundefined
        kroybal @dc42
        last edited by

        @dc42 Sure thing, I will be leaving the lab today in 15 minutes so I will likely get back to you by tomorrow. Hope that is not too much of an inconvenience.

        dc42undefined 1 Reply Last reply Reply Quote 0
        • dc42undefined
          dc42 administrators @kroybal
          last edited by

          @kroybal said in CAN connectivity: Duet 3 MB6HC to EXP3HC:

          @dc42 Sure thing, I will be leaving the lab today in 15 minutes so I will likely get back to you by tomorrow. Hope that is not too much of an inconvenience.

          OK, no problem. Thanks for your patience.

          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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          • dc42undefined
            dc42 administrators
            last edited by dc42

            I've updated just the EXP3HC firmware at https://www.dropbox.com/sh/qr98k8fbkj5ue0k/AABPawUF99QVzDrheBQBDSxia?dl=0. The M115 report for this version is:

            Duet EXP3HC firmware version 3.3beta (2021-02-01 22:29:11)

            Please install this firmware, verify the build time using M115, then check whether it solves the power-up issue. To be clear:

            • Once power is applied to the EXP3HC and its green 3.3V power LED illuminates, the red status LED should start flashing within less than a second, even if the CAN bus is not connected;
            • If the board is connected to a running Duet 3 main board via CAN running firmware 3.3beta, then the fast flashing should persist for one to two seconds before it changes to the 1Hz blink that indicates time sync with the main board has been achieved.

            If this doesn't solve the problem, then please let me know who you purchased the board from so that we can arrange a replacement and a return shipping label.

            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

            kroybalundefined 1 Reply Last reply Reply Quote 0
            • kroybalundefined
              kroybal @dc42
              last edited by

              @dc42
              IMG_2245-2.mp4

              I verified the build time. Following the firmware update the reset worked my first go at it, the second go at it took about 10 seconds before the LED powered on.

              The attached video is capturing the third and fourth attempt at resetting the board. I had to reduce quality and cut the video short but the fourth attempt was about 50 second connection, and I tried once more after that and it was immediate.

              If firmware updates have an effect on the behavior of the LED/connection, could that be suggesting that the board has the potential to work? I have have seen an improvement, we started at the range of 10-30 minutes to connect and now we're down to the range of immediately to 50 seconds tops.

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              • dc42undefined
                dc42 administrators
                last edited by

                Thanks, @kroybal. I think this board has potential to work, but you've suffered long enough. So I'd like to get a replacement sent to you, and the original one returned to me for further investigation. Who did you buy it from?

                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

                kroybalundefined 1 Reply Last reply Reply Quote 0
                • kroybalundefined
                  kroybal @dc42
                  last edited by

                  @dc42 I will get in touch with my boss and owner of the machine. I believe he got it from filastruder.

                  dc42undefined 1 Reply Last reply Reply Quote 0
                  • dc42undefined
                    dc42 administrators @kroybal
                    last edited by

                    @kroybal, was this resolved by exchanging the EXP3HC board?

                    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

                    kroybalundefined 1 Reply Last reply Reply Quote 0
                    • kroybalundefined
                      kroybal @dc42
                      last edited by

                      @dc42 I do not believe I was ever put into contact with filastruder, I suppose I was awaiting a response.

                      At any rate, I am back simply due to the same reasons stated above. We have made do with the bug (I am actively waiting for the sync LED as we speak) but I was curious of the latest Firmware updates, I believe I checked your account and checked the latest post that I could find in regards to firmware updates was your post from January 5th, 2021.

                      I am currently working with RepRapFirmware for Duet 3 MB6HC 3.2.2 (2021-02-11), I will have to uncover the EXP3HC firmware once its sync'd, however likely not necessary, it is still the same (if stated above.)

                      Anyways, I could attempt another firmware upgrade before going through the process of an exchange.

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

                        3.3 final was released not long ago, and 3.4 beta2 was released just the other day.

                        https://github.com/Duet3D/RepRapFirmware/releases/download/3.3/Duet2and3Firmware-3.3.zip

                        If that has no improvement, please send an email to warranty@duet3d.com and CC your reseller. Include a link to this forum thread and the details of your original purchase. You'll receive a reply with a form to fill out. We will make a note to have the board redirected back to DC42.

                        Z-Bot CoreXY Build | Thingiverse Profile

                        1 Reply Last reply Reply Quote 1
                        • kroybalundefined
                          kroybal
                          last edited by

                          Update:

                          I got in touch with Filastruder, turns out my warranty on the board was out of date. Not a problem, I purchased another MB6HC and its still encountering the same 30seconds to 45 minute sync time with the EXP3HC board.

                          Both are up to date firmware wise. Could it be the oscillator on the EXP3HC? I had a few other boards installed (now have been removed) so my serial port is 15 I suspect its not a problem regarding performance, but if it is I could dial that down now I have no other boards beyond the two stated.

                          M122 B0
                          === Diagnostics ===
                          RepRapFirmware for Duet 3 MB6HC version 3.4.1 (2022-06-01 21:09:01) running on Duet 3 MB6HC v1.01 or later (standalone mode)
                          Board ID: 08DJM-9P63L-DJ3T8-6J1D6-3SJ6L-1A73A
                          Used output buffers: 3 of 40 (15 max)

                          M122 B15
                          Diagnostics for board 15:
                          Duet EXP3HC rev 1.01 or earlier firmware version 3.4.1 (2022-06-01 21:15:27)

                          jay_s_ukundefined dc42undefined 2 Replies Last reply Reply Quote 0
                          • jay_s_ukundefined
                            jay_s_uk @kroybal
                            last edited by

                            @kroybal what bootloader is on the 3HC? It's reported as part of M122

                            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

                            1 Reply Last reply Reply Quote 2
                            • dc42undefined
                              dc42 administrators @kroybal
                              last edited by

                              @kroybal this will most likely be resolved by updating the bootloader on the 3HC.

                              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

                              kroybalundefined 1 Reply Last reply Reply Quote 0
                              • kroybalundefined
                                kroybal @dc42
                                last edited by

                                @jay_s_uk

                                Thanks for the guidance! It was out of date.

                                @dc42 said in CAN connectivity: Duet 3 MB6HC to EXP3HC:

                                @kroybal this will most likely be resolved by updating the bootloader on the 3HC.

                                This resolved my issue, when I updated the firmware and forgot to do the bootloader as well.

                                Appreciate the help!

                                1 Reply Last reply Reply Quote 2
                                • kroybalundefined kroybal has marked this topic as solved
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