Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    Turn off the motor UART mode

    Scheduled Pinned Locked Moved
    Using Duet Controllers
    2
    10
    251
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • Mejituuundefined
      Mejituu
      last edited by

      About duet3mini5plus how to turn off UART mode to use third-party closed loop.I have a duet3mini5plus. By blowing down the 2209 chip and leading out the corresponding drive pins, I can make the external third-party closed-loop move through these pins. However, due to the offset problem in the printing process due to UART mode, how can I set the motor drive to turn off UART to use the closed-loop. Excuse me, this m569 P0 0 S1 D4 can turn off UART mode directly, and whether m569 needs to be configured 1. How to configure m569 if necessary one.

      Mejituuundefined dc42undefined 2 Replies Last reply Reply Quote 0
      • Mejituuundefined
        Mejituu @Mejituu
        last edited by

        @mejituu About duet3mini5plus how to turn off UART mode to use third-party closed loop.I have a duet3mini5plus. By blowing down the 2209 chip and leading out the corresponding drive pins, I can make the external third-party closed-loop move through these pins. However, due to the offset problem in the printing process due to UART mode, how can I set the motor drive to turn off UART to use the closed-loop. Excuse me, this M569 P0.0 S1 D4 can turn off UART mode directly, and whether M569 .1needs to be configured. How to configure M569.1 if necessary one.

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

          @mejituu how many closed loop drivers do you want to use? The driver expansion connector has two sets of driver control pins that you can access, without needing to tap into the on-board driver signals.

          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

          Mejituuundefined 2 Replies Last reply Reply Quote 0
          • Mejituuundefined
            Mejituu @dc42
            last edited by

            @dc42 I need to use two closed-loop interfaces, but the closed-loop driver I use is used as an ordinary 4988 driver on duet3 motherboard. Can I ask whether these two interfaces can be used directly. My driver needs the six pins of "EN STP DIR COM VIN GND", which is equivalent to using the closed-loop as an ordinary driver

            1 Reply Last reply Reply Quote 0
            • Mejituuundefined
              Mejituu @dc42
              last edited by

              @dc42 @dc42 It seems that the external closed-loop driver connected to me does not use UART interface. It should not be affected by reason, unless reprofirmware is set and affected in this way. This may be a step timing problem. M569 P5 R1 T2. 5:2.5:5:0 ; Driver 5 requires high level active enable, 2.5us minimum step pulse, 2.5us minimum step interval, 5us dir setup time and no hold time. How large should I set? The line length is 1m. Is the default timing size of duet3 0.

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

                @mejituu what is the specification of the closed loop driver? Please provide a link to its manual.

                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

                Mejituuundefined 1 Reply Last reply Reply Quote 0
                • Mejituuundefined
                  Mejituu @dc42
                  last edited by

                  @dc42 The specification is the same as that of 4988, which is equivalent to an ordinary 4988 driver. UART cannot be used

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

                    @mejituu in that case you should use the two sets of step and direction signals that are present on the driver expansion connector. UART support on those two drivers is optional in RRF.

                    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

                    Mejituuundefined 1 Reply Last reply Reply Quote 0
                    • Mejituuundefined
                      Mejituu @dc42
                      last edited by

                      @dc42 Can you choose whether to use UART through which gcode codes of RRF?

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

                        @mejituu no you can't. RRF will use the UART if it detects that it is present. This means that for the two add-on drivers that you can connect via the stepper driver expansion header of the Duet 3 Mini, you can choose to use drivers with or without UART.

                        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

                        1 Reply Last reply Reply Quote 0
                        • First post
                          Last post
                        Unless otherwise noted, all forum content is licensed under CC-BY-SA