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  3. Motor issues when running ESC calibration

Motor issues when running ESC calibration

Scheduled Pinned Locked Moved ESCs
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  • Alex KushleyevA Alex Kushleyev

    @Alexander-Saunders , the file should be saved in the same directory where you are running the calibration script from (current directory). here is the line of code in the calibration script, which saves the figure right before trying to plot it in a browser.

    Alex KushleyevA Offline
    Alex KushleyevA Offline
    Alex Kushleyev
    ModalAI Team
    wrote on last edited by
    #30

    here is the calibration result i got with my setup (and the a0, a1, a2 params are already in the xml file i linked before):

    1d3b2a05-695e-4aa3-8a95-7cb3242644d9-image.png

    rdjarvisR 1 Reply Last reply
    0
    • Alex KushleyevA Alex Kushleyev

      here is the calibration result i got with my setup (and the a0, a1, a2 params are already in the xml file i linked before):

      1d3b2a05-695e-4aa3-8a95-7cb3242644d9-image.png

      rdjarvisR Offline
      rdjarvisR Offline
      rdjarvis
      Regular
      wrote on last edited by
      #31

      @Alex-Kushleyev after uploading the new params you sent the ESC no longer communicates with the VOXL2.

      The ESC board is no longer recognized by VOXL2. All hardware is set up properly.
      Screenshot 2024-04-17 110112.png

      voxl_uart_read_byte bus 12 is not initiated

      Please point us in the right direction.

      Alex KushleyevA 1 Reply Last reply
      1
      • rdjarvisR rdjarvis

        @Alex-Kushleyev after uploading the new params you sent the ESC no longer communicates with the VOXL2.

        The ESC board is no longer recognized by VOXL2. All hardware is set up properly.
        Screenshot 2024-04-17 110112.png

        voxl_uart_read_byte bus 12 is not initiated

        Please point us in the right direction.

        Alex KushleyevA Offline
        Alex KushleyevA Offline
        Alex Kushleyev
        ModalAI Team
        wrote on last edited by
        #32

        @rdjarvis , the latest params switched baud rate from 250k to 2mbit, but that should not be an issue. You should make sure voxl esc param in px4 is 20000000.

        Please try voxl-esc python tools directly and make sure px4 is disabled when you run them (instead of running the voxl-esc wrapper like you did).

        Sometimes stopping px4 gets the dsp in a weird state, in which case you can disable px4 from autostart, reboot and then do a voxl-esc-scan.py

        rdjarvisR Alexander SaundersA 2 Replies Last reply
        0
        • Alex KushleyevA Alex Kushleyev

          @rdjarvis , the latest params switched baud rate from 250k to 2mbit, but that should not be an issue. You should make sure voxl esc param in px4 is 20000000.

          Please try voxl-esc python tools directly and make sure px4 is disabled when you run them (instead of running the voxl-esc wrapper like you did).

          Sometimes stopping px4 gets the dsp in a weird state, in which case you can disable px4 from autostart, reboot and then do a voxl-esc-scan.py

          rdjarvisR Offline
          rdjarvisR Offline
          rdjarvis
          Regular
          wrote on last edited by
          #33

          @Alex-Kushleyev Copy all, we will try. Thank you.

          1 Reply Last reply
          2
          • Alex KushleyevA Alex Kushleyev

            @rdjarvis , the latest params switched baud rate from 250k to 2mbit, but that should not be an issue. You should make sure voxl esc param in px4 is 20000000.

            Please try voxl-esc python tools directly and make sure px4 is disabled when you run them (instead of running the voxl-esc wrapper like you did).

            Sometimes stopping px4 gets the dsp in a weird state, in which case you can disable px4 from autostart, reboot and then do a voxl-esc-scan.py

            Alexander SaundersA Offline
            Alexander SaundersA Offline
            Alexander Saunders
            Contributor
            wrote on last edited by
            #34

            @Alex-Kushleyev

            For the esc tools, we were running the commands from /usr/share/modalai/voxl-esc-tools. To clarify, for the baud rate changes, do you want 2,000,000 or 20,000,000. We will try the tools again and confirm px4 is stopped via systemctl stop voxl-px4.

            Alex KushleyevA 1 Reply Last reply
            1
            • Alexander SaundersA Alexander Saunders

              @Alex-Kushleyev

              For the esc tools, we were running the commands from /usr/share/modalai/voxl-esc-tools. To clarify, for the baud rate changes, do you want 2,000,000 or 20,000,000. We will try the tools again and confirm px4 is stopped via systemctl stop voxl-px4.

              Alex KushleyevA Offline
              Alex KushleyevA Offline
              Alex Kushleyev
              ModalAI Team
              wrote on last edited by
              #35

              @Alexander-Saunders, my bad too many zeros. 2,000,000 (2Mbit)

              Alex KushleyevA Alexander SaundersA 2 Replies Last reply
              0
              • Alex KushleyevA Alex Kushleyev

                @Alexander-Saunders, my bad too many zeros. 2,000,000 (2Mbit)

                Alex KushleyevA Offline
                Alex KushleyevA Offline
                Alex Kushleyev
                ModalAI Team
                wrote on last edited by Alex Kushleyev
                #36

                The screen shot in earlier post today shows running “voxl-esc” which is a wrapper for the python tools, sometimes it is easier just to use python tools directly, but make sure they are latest version. the version in /usr/share/modalai is probably not latest. Normally you dont need to update the tools but if something is not working as expected, it is good to try the latest.

                rdjarvisR 1 Reply Last reply
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                • Alex KushleyevA Alex Kushleyev

                  The screen shot in earlier post today shows running “voxl-esc” which is a wrapper for the python tools, sometimes it is easier just to use python tools directly, but make sure they are latest version. the version in /usr/share/modalai is probably not latest. Normally you dont need to update the tools but if something is not working as expected, it is good to try the latest.

                  rdjarvisR Offline
                  rdjarvisR Offline
                  rdjarvis
                  Regular
                  wrote on last edited by
                  #37

                  @Alex-Kushleyev Screenshot 2024-04-17 113251.png

                  We verified PX4 was not running.

                  systemctl stop voxl-px4

                  1 Reply Last reply
                  2
                  • Alex KushleyevA Alex Kushleyev

                    @Alexander-Saunders, my bad too many zeros. 2,000,000 (2Mbit)

                    Alexander SaundersA Offline
                    Alexander SaundersA Offline
                    Alexander Saunders
                    Contributor
                    wrote on last edited by
                    #38

                    @Alex-Kushleyev

                    No worries. We also verified if the issue was with the particular param file and ran the command to upload a different one. No luck with that and we still receive the same error (Bus 12, ESC not detected, etc)

                    Alex KushleyevA 1 Reply Last reply
                    1
                    • Alexander SaundersA Alexander Saunders

                      @Alex-Kushleyev

                      No worries. We also verified if the issue was with the particular param file and ran the command to upload a different one. No luck with that and we still receive the same error (Bus 12, ESC not detected, etc)

                      Alex KushleyevA Offline
                      Alex KushleyevA Offline
                      Alex Kushleyev
                      ModalAI Team
                      wrote on last edited by
                      #39

                      @Alexander-Saunders

                      Can you please try voxl-esc tools from dev branch on github? Instead of /usr/share/modalai/voxl-esc-tools

                      Alex KushleyevA 1 Reply Last reply
                      0
                      • Alex KushleyevA Alex Kushleyev

                        @Alexander-Saunders

                        Can you please try voxl-esc tools from dev branch on github? Instead of /usr/share/modalai/voxl-esc-tools

                        Alex KushleyevA Offline
                        Alex KushleyevA Offline
                        Alex Kushleyev
                        ModalAI Team
                        wrote on last edited by
                        #40

                        Also, which SDK are you using? i am surprised to see this issue.

                        Also, can you please double check the ESC bootup sequence:

                        • apply power
                        • 4 blue leds flash quickly for 1 second, then turn off
                        • 4 blue leds blink twice
                        • motor makes a quick chirp (three tones based on the latest params that provided)
                        rdjarvisR Alex KushleyevA 2 Replies Last reply
                        0
                        • Alex KushleyevA Alex Kushleyev

                          Also, which SDK are you using? i am surprised to see this issue.

                          Also, can you please double check the ESC bootup sequence:

                          • apply power
                          • 4 blue leds flash quickly for 1 second, then turn off
                          • 4 blue leds blink twice
                          • motor makes a quick chirp (three tones based on the latest params that provided)
                          rdjarvisR Offline
                          rdjarvisR Offline
                          rdjarvis
                          Regular
                          wrote on last edited by
                          #41

                          @Alex-Kushleyev ESC gave

                          4 LEDs quickly flashing
                          4 LEDs flash 3 times
                          Motor chirps

                          rdjarvisR Alex KushleyevA 2 Replies Last reply
                          1
                          • rdjarvisR rdjarvis

                            @Alex-Kushleyev ESC gave

                            4 LEDs quickly flashing
                            4 LEDs flash 3 times
                            Motor chirps

                            rdjarvisR Offline
                            rdjarvisR Offline
                            rdjarvis
                            Regular
                            wrote on last edited by
                            #42

                            @rdjarvis Screenshot 2024-04-17 115253.png

                            1 Reply Last reply
                            1
                            • Alex KushleyevA Alex Kushleyev

                              Also, which SDK are you using? i am surprised to see this issue.

                              Also, can you please double check the ESC bootup sequence:

                              • apply power
                              • 4 blue leds flash quickly for 1 second, then turn off
                              • 4 blue leds blink twice
                              • motor makes a quick chirp (three tones based on the latest params that provided)
                              Alex KushleyevA Offline
                              Alex KushleyevA Offline
                              Alex Kushleyev
                              ModalAI Team
                              wrote on last edited by
                              #43

                              One more suggestion, it often helps to use a direct connection between the ESC and your linux PC and run the voxl-esc tools there. This way you can see the plots instantly during testing and also if there are some issues with communication to the ESC, you can always connect it to the PC and check the ESC that way.

                              Do you have a USB to serial adapter cable that plugs into the ESC <-> PC ?

                              rdjarvisR 1 Reply Last reply
                              0
                              • rdjarvisR rdjarvis

                                @Alex-Kushleyev ESC gave

                                4 LEDs quickly flashing
                                4 LEDs flash 3 times
                                Motor chirps

                                Alex KushleyevA Offline
                                Alex KushleyevA Offline
                                Alex Kushleyev
                                ModalAI Team
                                wrote on last edited by
                                #44

                                @rdjarvis said in Motor issues when running ESC calibration:

                                @Alex-Kushleyev ESC gave

                                4 LEDs quickly flashing
                                4 LEDs flash 3 times
                                Motor chirps

                                OK that is good!

                                1 Reply Last reply
                                0
                                • Alex KushleyevA Alex Kushleyev

                                  One more suggestion, it often helps to use a direct connection between the ESC and your linux PC and run the voxl-esc tools there. This way you can see the plots instantly during testing and also if there are some issues with communication to the ESC, you can always connect it to the PC and check the ESC that way.

                                  Do you have a USB to serial adapter cable that plugs into the ESC <-> PC ?

                                  rdjarvisR Offline
                                  rdjarvisR Offline
                                  rdjarvis
                                  Regular
                                  wrote on last edited by
                                  #45

                                  @Alex-Kushleyev, yes we have the USB/Serial connector.

                                  Alex KushleyevA 1 Reply Last reply
                                  0
                                  • rdjarvisR rdjarvis

                                    @Alex-Kushleyev, yes we have the USB/Serial connector.

                                    Alex KushleyevA Offline
                                    Alex KushleyevA Offline
                                    Alex Kushleyev
                                    ModalAI Team
                                    wrote on last edited by
                                    #46

                                    @rdjarvis , ok great. Lets take a step back and just make sure you can talk to the ESC from the PC.

                                    I will test SDK 1.2.0 to make sure it works fine with voxl-esc tools with my esc.

                                    rdjarvisR Alexander SaundersA 2 Replies Last reply
                                    0
                                    • Alex KushleyevA Alex Kushleyev

                                      @rdjarvis , ok great. Lets take a step back and just make sure you can talk to the ESC from the PC.

                                      I will test SDK 1.2.0 to make sure it works fine with voxl-esc tools with my esc.

                                      rdjarvisR Offline
                                      rdjarvisR Offline
                                      rdjarvis
                                      Regular
                                      wrote on last edited by
                                      #47

                                      @Alex-Kushleyev Copy all, thank you

                                      1 Reply Last reply
                                      0
                                      • Alex KushleyevA Alex Kushleyev

                                        @rdjarvis , ok great. Lets take a step back and just make sure you can talk to the ESC from the PC.

                                        I will test SDK 1.2.0 to make sure it works fine with voxl-esc tools with my esc.

                                        Alexander SaundersA Offline
                                        Alexander SaundersA Offline
                                        Alexander Saunders
                                        Contributor
                                        wrote on last edited by
                                        #48

                                        @Alex-Kushleyev

                                        Also to confirm, I followed the README from dev branch to update.

                                        Alex KushleyevA 1 Reply Last reply
                                        0
                                        • Alexander SaundersA Alexander Saunders

                                          @Alex-Kushleyev

                                          Also to confirm, I followed the README from dev branch to update.

                                          Alex KushleyevA Offline
                                          Alex KushleyevA Offline
                                          Alex Kushleyev
                                          ModalAI Team
                                          wrote on last edited by
                                          #49

                                          @Alexander-Saunders , thank you for confirming. I see that you are using SDK 1.2.0, which is very recent, so it already has (almost) the latest voxl-esc tools.

                                          I am in the process of testing the tools on voxl2 using SDK 1.2.0, please try to connect to your PC directly and this should properly detect your ESC.

                                          rdjarvisR 1 Reply Last reply
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