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    HITL with voxl 2

    Ask your questions right here!
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    • E
      Eric Katzfey ModalAI Team @Tamas Pal 0
      last edited by 26 Aug 2022, 16:11

      @Tamas-Pal-0 For UART it is just GND, TX, and RX

      T 1 Reply Last reply 29 Aug 2022, 02:29 Reply Quote 0
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        Tamas Pal 0 @Eric Katzfey
        last edited by 29 Aug 2022, 02:29

        @Eric-Katzfey you mean we only have to connect 3 pins in j18 port ?

        E 1 Reply Last reply 29 Aug 2022, 15:24 Reply Quote 0
        • E
          Eric Katzfey ModalAI Team @Tamas Pal 0
          last edited by 29 Aug 2022, 15:24

          @Tamas-Pal-0 Yes, the fourth pin is power and we don't want that one.

          1 Reply Last reply Reply Quote 0
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            Tamas Pal 0
            last edited by 31 Aug 2022, 05:45

            Is there any way to verify that FTDI cable is connected properly with J18 port ?

            E 1 Reply Last reply 31 Aug 2022, 16:32 Reply Quote 0
            • E
              Eric Katzfey ModalAI Team @Tamas Pal 0
              last edited by Eric Katzfey 31 Aug 2022, 16:33 31 Aug 2022, 16:32

              @Tamas-Pal-0 The easiest way would be to recompile the modalai_dsp PX4 driver to add more debug messages. But if you aren't comfortable with that then we'll need to come up with something else.

              1 Reply Last reply Reply Quote 0
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                Tamas Pal 0
                last edited by Tamas Pal 0 1 Sept 2022, 05:17 1 Sept 2022, 05:17

                How to do that? Is there any other way to this ?

                E 1 Reply Last reply 1 Sept 2022, 16:16 Reply Quote 0
                • E
                  Eric Katzfey ModalAI Team @Tamas Pal 0
                  last edited by 1 Sept 2022, 16:16

                  @Tamas-Pal-0 The simulator will be sending heartbeat messages out over the serial cable. You can use the screen program to see if anything is coming from voxl 2 in the serial cable.

                  T 1 Reply Last reply 2 Sept 2022, 05:30 Reply Quote 0
                  • T
                    Tamas Pal 0 @Eric Katzfey
                    last edited by 2 Sept 2022, 05:30

                    @Eric-Katzfey How to use screen program in this case ?

                    E 1 Reply Last reply 2 Sept 2022, 16:36 Reply Quote 0
                    • E
                      Eric Katzfey ModalAI Team @Tamas Pal 0
                      last edited by 2 Sept 2022, 16:36

                      @Tamas-Pal-0 screen is just a standard Linux program. There are many ways to check the output of the serial port. To start, you could always just do cat /dev/ttyUSB0 and see if anything is coming out. This post shows how to get a hex dump: https://superuser.com/questions/1402386/view-serial-device-output-in-console-in-hex

                      1 Reply Last reply Reply Quote 0
                      • T
                        Tamas Pal 0
                        last edited by Tamas Pal 0 6 Sept 2022, 14:29 6 Sept 2022, 14:28

                        The problem is solved. The problem was with ftdi cable. Thank you for your valuable inputs

                        E 1 Reply Last reply 6 Sept 2022, 15:24 Reply Quote 0
                        • E
                          Eric Katzfey ModalAI Team @Tamas Pal 0
                          last edited by 6 Sept 2022, 15:24

                          @Tamas-Pal-0 Excellent! How were you able to determine that it was the cable?

                          1 Reply Last reply Reply Quote 0
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                            Taylor Presley
                            last edited by 8 Jan 2023, 18:38

                            @Eric-Katzfey @Tamas-Pal-0 For future users troubleshooting HITL setup, I was having the same issue as above. This cable would not allow me to set the latency or share data with the VOXL 2 through J18 port, but this cable works as intended.

                            T 1 Reply Last reply 9 Jan 2023, 05:56 Reply Quote 1
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                              Tamas Pal 0 @Taylor Presley
                              last edited by Tamas Pal 0 9 Jan 2023, 06:02 9 Jan 2023, 05:56

                              @Taylor-Presley Right. Some cables work some don't.

                              1 Reply Last reply Reply Quote 1
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