Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
Collapse
Brand Logo

ModalAI Forum

  1. ModalAI Support Forum
  2. Ask your questions right here!
  3. Not going in Position mode

Not going in Position mode

Scheduled Pinned Locked Moved Ask your questions right here!
29 Posts 7 Posters 6.2k Views 5 Watching
  • 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.
  • G Offline
    G Offline
    gauravshukla914
    Regular
    wrote on last edited by
    #18

    @tom I did that. I flashed with the image that you asked me to. Unfortunately the problem is still there. I'm able to see the odometry on my terminal once I do the "voxl-version-px4 -o". But no luck with the QgroundControl. Basically the same problem!

    adb shell
    / # voxl-version
    cat: /etc/modalai/voxl-software-bundle-version.txt: No such file or directory
    --------------------------------------------------------------------------------
    system-image:    ModalAI 3.2.0 BUILDER: ekatzfey BUILD_TIME: 2021-02-05_19:54
    kernel:          #1 SMP PREEMPT Fri Feb 5 20:03:22 UTC 2021 3.18.71-perf
    factory-bundle:  1.0.1 (Yocto installation)
    --------------------------------------------------------------------------------
    architecture:    aarch64
    processor:       apq8096
    os:              GNU/Linux
    --------------------------------------------------------------------------------
    voxl-suite:
    Package: voxl-suite
    Version: 0.3.4
    Depends: voxl-utils (>= 0.6.0), libmodal_json (>= 0.3.4), libmodal_pipe (>= 1.7.8), librc_math (>= 1.1.4), libvoxl_io (>= 0.5.4), mavlink-camera-manager (>= 0.0.1), opencv (>= 4.5.1), openmp (>= 10.0.1), voxl-camera-server (>= 0.5.6), voxl-dfs-server (>= 0.0.7), voxl-docker-support (>= 1.1.1), voxl-gphoto2 (>= 0.0.5), voxl-hal3-tof-cam-ros (>= 0.0.5), voxl-imu-server (>= 0.7.8), voxl-modem (>= 0.11.0), voxl-mpa-tflite-server (>= 0.0.2), voxl-mpa-tools (>= 0.1.6), voxl-nodes (>= 0.1.3), voxl-qvio-server (>= 0.2.1), voxl-rtsp (>= 1.0.3), voxl-streamer (>= 0.2.1), voxl-vision-px4 (>= 0.8.1), voxl-vpn (>= 0.0.3)
    Status: install user installed
    Section: base
    Architecture: all
    Maintainer: james@modalai.com
    MD5Sum: e1e5bf1a125affe5036099f6ce895bed
    Size: 1818
    Filename: voxl-suite_0.3.4.ipk
    Description: meta-package for voxl-suite stable release
    Installed-Time: 1622142966
    
    Package: voxl-suite
    Version: 0.2.0
    Depends: docker, imu_app (= 0.0.6), libvoxl_io (= 0.5.2), voxl-cam-manager (= 0.2.2), voxl-docker-support (= 1.1.1), voxl-hal3-tof-cam-ros (= 0.0.2), voxl-modem (= 0.10.0), voxl-nodes (= 0.0.8), voxl-rtsp (= 1.0.2), voxl-utils (= 0.5.2), voxl-vision-px4 (= 0.6.8), voxl_imu (= 0.0.4), voxl-time-sync (= 0.0.1), voxl-vpn (= 0.0.2), librc_math (= 1.1.2), libmodal_pipe (= 1.2.2), modalai-vl (= 0.1.3)
    Status: unknown ok not-installed
    Section: base
    Architecture: armv7a
    Maintainer: james@modalai.com
    MD5Sum: af706cd3c1ea59f274f2ed9b93141f1d
    Size: 870
    Filename: voxl-suite_0.2.0.ipk
    Description: meta-package to install all of the voxl-suite
    
    1 Reply Last reply
    0
    • tomT Offline
      tomT Offline
      tom
      admin
      wrote on last edited by
      #19

      @gauravshukla914 Can you post your voxl-vision-px4 conf file?

      cat /etc/modalai/voxl-vision-px4.conf

      1 Reply Last reply
      0
      • G Offline
        G Offline
        gauravshukla914
        Regular
        wrote on last edited by
        #20

        @tom said in Not going in Position mode:

        cat /etc/modalai/voxl-vision-px4.conf

        cat /etc/modalai/voxl-vision-px4.conf
        /**
         * VOXL Vision PX4 Configuration File
         *
         */
        {
        	"qgc_ip":	"192.168.100.174",
        	"en_localhost_mavlink_udp":	true,
        	"en_secondary_qgc":	false,
        	"secondary_qgc_ip":	"192.168.1.214",
        	"qgc_udp_port_number":	14550,
        	"localhost_udp_port_number":	14551,
        	"en_vio":	true,
        	"en_voa":	false,
        	"en_send_vio_to_qgc":	true,
        	"en_send_voa_to_qgc":	false,
        	"en_adsb":	true,
        	"adsb_uart_bus":	7,
        	"adsb_uart_baudrate":	57600,
        	"px4_uart_bus":	5,
        	"px4_uart_baudrate":	921600,
        	"offboard_mode":	"off",
        	"follow_tag_id":	0,
        	"en_apriltag_fixed_frame":	false,
        	"fixed_frame_filter_len":	5,
        	"en_transform_mavlink_pos_setpoints_from_fixed_frame":	true
        }
        
        1 Reply Last reply
        0
        • G Offline
          G Offline
          gauravshukla914
          Regular
          wrote on last edited by
          #21

          @tom @modaltb @Jeremy-Schmidt is there anything else I can send?

          1 Reply Last reply
          0
          • Chad SweetC Offline
            Chad SweetC Offline
            Chad Sweet
            ModalAI Team
            wrote on last edited by
            #22

            @gauravshukla914 see this post here. In there case they had the same symptom. To fix, they made sure voxl-imu-server and voxl-camera-server were running on boot and feeding the data to voxl-qvio-server

            1 Reply Last reply
            0
            • G Offline
              G Offline
              gauravshukla914
              Regular
              wrote on last edited by
              #23

              @Chad-Sweet I made sure this, but still no luck with the local position ned and its still failing to go into position mode. I have attached the screenshots.
              @modaltb @tom @Jeremy-Schmidt is there a way we can set up a screen share for this? I think it'd be great if we can do that and may be together we can come up with a solution for this.qgc.png voxl.png

              1 Reply Last reply
              0
              • Cliff WongC Offline
                Cliff WongC Offline
                Cliff Wong
                ModalAI Team
                wrote on last edited by
                #24

                Can you report what your EKF2_AID_MASK is set to in PX4 and post the value? thanks.

                1 Reply Last reply
                0
                • G Offline
                  G Offline
                  gauravshukla914
                  Regular
                  wrote on last edited by gauravshukla914
                  #25

                  @Cliff-Wong its set to 280. I have also posted the PX4 param above somewhere in the beginning and you can have a look at that too.

                  Cliff WongC 1 Reply Last reply
                  0
                  • Chad SweetC Offline
                    Chad SweetC Offline
                    Chad Sweet
                    ModalAI Team
                    wrote on last edited by
                    #26

                    Have you changed the firmware in some way? This is not normal behavior. You could try going to original firmware and settings: https://docs.modalai.com/flight-core-firmware/

                    1 Reply Last reply
                    0
                    • G gauravshukla914

                      @Cliff-Wong its set to 280. I have also posted the PX4 param above somewhere in the beginning and you can have a look at that too.

                      Cliff WongC Offline
                      Cliff WongC Offline
                      Cliff Wong
                      ModalAI Team
                      wrote on last edited by
                      #27

                      @gauravshukla914
                      thanks, if you are using standard firmware as Chad mentioned in the following post, PX4 (not voxl) selectively stops certain position updates in order to trigger specific logic in ECL. Saying that, the behavior you're seeing appears just like aid mask (280) is being ignored. If you watch this: https://drive.google.com/file/d/15MPZeez2zgfBQySNgxlsEqq3Ttj34b7M/view?usp=sharing I think I recreated your behavior as described (note "afla" = udp). Thus, you may want to explicitly set aid_mask/reboot to confirm the same behavior which will help us narrow down the problem to mavlink (possible crc issue) or px4-general logic.

                      If you are using custom firmware, it very likely the aid mask param is not setting the internal modes properly.

                      1 Reply Last reply
                      0
                      • G Offline
                        G Offline
                        gauravshukla914
                        Regular
                        wrote on last edited by
                        #28

                        @Chad-Sweet No I have not changed the firmware. The firmware version is 1.11.3. I have also attached the picture of it in my previous comments. We are running out of ideas now.

                        @Cliff-Wong - Thanks for the video. We did set the aid mask explicitly to 280 multiple times and rebooted PX4, but still no luck

                        1 Reply Last reply
                        0
                        • James StrawsonJ Offline
                          James StrawsonJ Offline
                          James Strawson
                          ModalAI Team
                          wrote on last edited by
                          #29

                          Do you have a GPS/Mag plugged in? If not please try plugging in a GPS/Mag and set the PX4 parameter SYS_HAS_MAG to 1. There is a PX4 bug that prevents VIO-only operation if a magnetometer is missing, even if the magnetometer is not in use.

                          We've been trying to get the bugfix approved and merged into PX4 master for over a year now but it seems to be a lost cause. For now our own branch of PX4 has the bugfix along with some custom tools for our ESCs. If your system starts working again with the magnetometer then we know somehow a standard PX4 image got onto your flight core instead of one of our own.

                          Regards,
                          James

                          1 Reply Last reply
                          0

                          Hello! It looks like you're interested in this conversation, but you don't have an account yet.

                          Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.

                          With your input, this post could be even better 💗

                          Register Login
                          Reply
                          • Reply as topic
                          Log in to reply
                          • Oldest to Newest
                          • Newest to Oldest
                          • Most Votes


                          ModalAI
                          Categories Recent Tags ModalAI.com Docs
                          © 2026 ModalAI® · Accelerating autonomy for smaller, smarter, safer drones · Powered by NodeBB
                          • Login

                          • Don't have an account? Register

                          • Login or register to search.
                          • First post
                            Last post
                          0
                          • Categories
                          • Recent
                          • Tags
                          • Popular
                          • Users
                          • Groups