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ModalAI Forum

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  3. HITL with voxl 2

HITL with voxl 2

Scheduled Pinned Locked Moved Ask your questions right here!
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  • Tamas Pal 0T Offline
    Tamas Pal 0T Offline
    Tamas Pal 0
    wrote on last edited by
    #11

    For 3.3v J18 jst port which port of ftdi cable should be used, CTS# or RTS# ?

    Eric KatzfeyE 1 Reply Last reply
    0
    • Tamas Pal 0T Tamas Pal 0

      For 3.3v J18 jst port which port of ftdi cable should be used, CTS# or RTS# ?

      Eric KatzfeyE Offline
      Eric KatzfeyE Offline
      Eric Katzfey
      ModalAI Team
      wrote on last edited by
      #12

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

      Tamas Pal 0T 1 Reply Last reply
      0
      • Eric KatzfeyE Eric Katzfey

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

        Tamas Pal 0T Offline
        Tamas Pal 0T Offline
        Tamas Pal 0
        wrote on last edited by
        #13

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

        Eric KatzfeyE 1 Reply Last reply
        0
        • Tamas Pal 0T Tamas Pal 0

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

          Eric KatzfeyE Offline
          Eric KatzfeyE Offline
          Eric Katzfey
          ModalAI Team
          wrote on last edited by
          #14

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

          1 Reply Last reply
          0
          • Tamas Pal 0T Offline
            Tamas Pal 0T Offline
            Tamas Pal 0
            wrote on last edited by
            #15

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

            Eric KatzfeyE 1 Reply Last reply
            0
            • Tamas Pal 0T Tamas Pal 0

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

              Eric KatzfeyE Offline
              Eric KatzfeyE Offline
              Eric Katzfey
              ModalAI Team
              wrote on last edited by Eric Katzfey
              #16

              @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
              0
              • Tamas Pal 0T Offline
                Tamas Pal 0T Offline
                Tamas Pal 0
                wrote on last edited by Tamas Pal 0
                #17

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

                Eric KatzfeyE 1 Reply Last reply
                0
                • Tamas Pal 0T Tamas Pal 0

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

                  Eric KatzfeyE Offline
                  Eric KatzfeyE Offline
                  Eric Katzfey
                  ModalAI Team
                  wrote on last edited by
                  #18

                  @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.

                  Tamas Pal 0T 1 Reply Last reply
                  0
                  • Eric KatzfeyE Eric Katzfey

                    @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.

                    Tamas Pal 0T Offline
                    Tamas Pal 0T Offline
                    Tamas Pal 0
                    wrote on last edited by
                    #19

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

                    Eric KatzfeyE 1 Reply Last reply
                    0
                    • Tamas Pal 0T Tamas Pal 0

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

                      Eric KatzfeyE Offline
                      Eric KatzfeyE Offline
                      Eric Katzfey
                      ModalAI Team
                      wrote on last edited by
                      #20

                      @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
                      0
                      • Tamas Pal 0T Offline
                        Tamas Pal 0T Offline
                        Tamas Pal 0
                        wrote on last edited by Tamas Pal 0
                        #21

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

                        Eric KatzfeyE 1 Reply Last reply
                        0
                        • Tamas Pal 0T Tamas Pal 0

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

                          Eric KatzfeyE Offline
                          Eric KatzfeyE Offline
                          Eric Katzfey
                          ModalAI Team
                          wrote on last edited by
                          #22

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

                          1 Reply Last reply
                          0
                          • Taylor PresleyT Offline
                            Taylor PresleyT Offline
                            Taylor Presley
                            wrote on last edited by
                            #23

                            @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.

                            Tamas Pal 0T 1 Reply Last reply
                            1
                            • Taylor PresleyT Taylor Presley

                              @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.

                              Tamas Pal 0T Offline
                              Tamas Pal 0T Offline
                              Tamas Pal 0
                              wrote on last edited by Tamas Pal 0
                              #24

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

                              1 Reply Last reply
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