• RE: Voxl stuck in waiting after unbricking posted in VOXL m500 Reference Drone
  • RE: Unable to unbrick ModalAI Voxl m500

    Hi @ashwin-umdlife ,

    I un-deleted this post, I'm not sure if you meant to delete but was asked from our contact email to look at this post.

    OK, I think we have some timing issues possibly happening here.

    Let's work through this and see if we need to update our documentation.... there's a couple scenarios to work through so it's a little tricky.

    The idea here is that we want to mimic "holding down the volume-down key while powering on a phone and letting go right after you power on" and then run the command.

    So, let's try this:

    • have m500 powered off
    • have fastboot switch turned ON
    • have USB cable connected to m500, not the host (because VOXL can get a little power from USB, but not enough to boot)
    • have your terminal open and ready with sudo fastboot devices command waiting

    Now:

    • plug USB power in
    • power on m500
    • turn fastboot switch off and quickly run the command (hit ENTER on the terminal that has the command waiting)

    Repeat this several times if possible. If we ever detect a device in fastboot mode then we can next attempt to update the system image.

    posted in Ask your questions right here!
  • RE: Unable to unbrick ModalAI Voxl m500

    Hi @ashwin-umdlife ,

    Sorry this post is shown as 'deleted' for some reason, testing a response.

    posted in Ask your questions right here!
  • RE: RTK (without Qgroundcontrol) posted in Ask your questions right here!
  • RE: GPS Polling?

    @Chuck-Bokath Yes, we have done the same things before. Basically log a position and signal strength indication. What platform are you using? Typically, in a PX4 system, that information will be encapsulated in Mavlink messages. On our Voxl board we have an endpoint for all of those messages that come over a serial port that we then forward on over UDP to a ground control station. However, as @Alex-Gardner points out, that voxl-vision-px4 module will dump all of that raw information to a Linux pipe as it is passing through. And, as @Alex-Gardner also pointed out, there is some example code that shows how to listen to that pipe and parse the message.

    posted in Ask your questions right here!
  • RE: voxl-dfs-server failing to run

    Hi Lynn,

    That should be built in to system image 3.3 and shouldn't show up in opkg. Can you paste the output of voxl-version to make sure everything is set up properly. Additionally, you can check if the libraries exist manually in /usr/lib or /usr/lib64 by running:

    yocto:/usr$ find | grep -i opencl
    ./include/CL/opencl.h
    ./include/adreno/CL/opencl.h
    ./include/opencv4/opencv2/core/opencl
    ./include/opencv4/opencv2/core/opencl/opencl_info.hpp
    ./include/opencv4/opencv2/core/opencl/ocl_defs.hpp
    ./include/opencv4/opencv2/core/opencl/opencl_svm.hpp
    ./include/opencv4/opencv2/core/opencl/runtime
    ./include/opencv4/opencv2/core/opencl/runtime/opencl_clamdblas.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/opencl_svm_definitions.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/opencl_svm_hsa_extension.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/opencl_svm_20.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/opencl_clamdfft.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/opencl_gl.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/opencl_core.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/opencl_core_wrappers.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/opencl_gl_wrappers.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/autogenerated
    ./include/opencv4/opencv2/core/opencl/runtime/autogenerated/opencl_clamdblas.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/autogenerated/opencl_clamdfft.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/autogenerated/opencl_gl.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/autogenerated/opencl_core.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/autogenerated/opencl_core_wrappers.hpp
    ./include/opencv4/opencv2/core/opencl/runtime/autogenerated/opencl_gl_wrappers.hpp
    ./include/tensorflow-2-2-3/tensorflow/lite/delegates/gpu/cl/opencl_wrapper.h
    ./lib/libOpenCL.so
    ./lib64/libOpenCL.so
    ./share/cmake-3.3/Help/module/FindOpenCL.rst
    ./share/cmake-3.3/Modules/FindOpenCL.cmake
    ./share/licenses/opencv4/opencl-headers-LICENSE.txt
    yocto:/usr$
    
    posted in Modal Pipe Architecture (MPA)
  • RE: GPS Polling?

    If you don't need to manually sample the hardware, voxl-vision-px4 publishes the GPS data to the file system to /run/mpa/vvpx4_gps_raw_int in our MPA format. You can use voxl-inspect-gps to see a viewer friendly terminal output displaying current gps information, and the source serves as a good example of how you could use the information in a c/++ program on voxl.

    posted in Ask your questions right here!
  • RE: GPS Polling?

    You mean attach an external GPS receiver and talk to it over a UART?

    posted in Ask your questions right here!
  • RE: docker fills up /data, prevents code from running

    System image 3.3.0 increases the number of inodes on /data to 3M. However, that may require that /data is completely wiped when you install it.

    posted in Ask your questions right here!
  • RE: RTK (without Qgroundcontrol)

    Ah, okay, I see. We do have some internal example code that takes RTCM data from the Internet and sends it into PX4. Let me see if I can make that public.

    posted in Ask your questions right here!