Hi @Alex-Gardner,

We switched from using voxl-cross and using adjusted .sh files from voxl-vision-px4, to placing our script inside libvoxl_io and adjusting the install_deps and CMakeLists.txt file. Then we can use the 32bit compilers from libvoxl_io, instead of the 64bit compiler from voxl-vision-px4 (we are not really using voxl-vision-px4 as a whole, we just copied some files for dependencies en building).

We added the libraries to install-deps, except modal-cv (because we don't need it) and that works. (Libvoxl_io is not among the installed libraries, because we placed our script inside libvoxl_io itself)

But when we try to build it, it raises the following error:

In /usr/include there is a file called modal_pipe_common.h, but the error remains.

I also don't understand why the path in the error is: usr/include/c_library_v2/../modal_pipe_server.h, and not: usr/include/modal_pipe_server.h

Is placing our script inside libvoxl_io like this the right path?
How can we fix the error?

I tried it on Ubuntu 20.04 as well, but it gave the same message as in Ubuntu 22.04. I also tried it with an older commit from the voxl-docker repository, but that also gave the same message. Does it have to do with the files that need to be downloaded and put in `cross_toolchain/downloads? Do I need to install something else?

Hi,

I was trying to install voxl-hexagon on Ubuntu 22.04, when I got this message:
When I tried to run ./installsdk.sh --APQ8096 --arm-gcc /opt/ manually, I got the following message:
Can you help me with this?

Hi @modaltb

We are using a controller connected to an air unit, which is connected to J12 (yellow connector) of the flight core on a VOXL CAM.

voxl-version result:

Hi,

We're using a modal_pipe to receive mavlink messages. We get the right messages, but sometimes different messages are received (like: 47941, 15297, 18170, 48032 etc. instead of 994, 1494 or 1994). When we connect the VOXL to QGroundControl, RC_CHANNELS doesn't show the random messages (only 994, 1494 or 1994).

Different data types all show the same random values.

Can you help us with this?

Hi @Alex-Gardner,

We switched from using voxl-cross and using adjusted .sh files from voxl-vision-px4, to placing our script inside libvoxl_io and adjusting the install_deps and CMakeLists.txt file. Then we can use the 32bit compilers from libvoxl_io, instead of the 64bit compiler from voxl-vision-px4 (we are not really using voxl-vision-px4 as a whole, we just copied some files for dependencies en building).

We added the libraries to install-deps, except modal-cv (because we don't need it) and that works. (Libvoxl_io is not among the installed libraries, because we placed our script inside libvoxl_io itself)

But when we try to build it, it raises the following error:

In /usr/include there is a file called modal_pipe_common.h, but the error remains.

I also don't understand why the path in the error is: usr/include/c_library_v2/../modal_pipe_server.h, and not: usr/include/modal_pipe_server.h

Is placing our script inside libvoxl_io like this the right path?
How can we fix the error?

Hi @Alex-Gardner,

Thank you for your reply.

We changed the find_library-line and now he is able to find the .so-file. It now says the .so-file is the wrong format, which is correct according to your second point.

For your second point: which libraries below can be build/run 32bit and which ones can't?
libmodal-json
libmodal-pipe
librc-math
libmodal-cv
voxl-mpa-tools
voxl-mavlink

For the 64bit with 32bit helper service solution: we already made a pipe where we receive mavlink messages from using pipe_validate_mavlink_message_t in _data_from_px4_helper_cb.
Can we use this pipe for the writing with voxl_io, or do we need to make a new one?
And how can we write through the pipe with voxl_io, because we checked libmodal_pipe but couldn't find anything for that?
Do we need to make another script with voxl_io functionalities and run it at the same time as the current mavlink message receiving script and communicate between them using a pipe?

We are looking at different types of solutions, so we looking forward to your reply.

Hi @Alex-Gardner,

I'm not entirely getting what you are saying.

In the build_deps file we only added the following line:

In CMakeLists.txt (from the same folder as the script) we added:
find_library(LIBAPQ8096_IO libapq8096_io LIBVOXL_IO libvoxl_io HINTS /usr/lib64)
and

When we try to build these files in voxl-cross, we get the errors from the earlier post.

Do we need to add anything else, or delete something?

Thank you, we put the code in _data_from_px4_helper_cb and we are able to get specific mavlink messages now.

We added libapq8096_io to the install_build_deps.sh and the CMakeLists.txt file. When we #include <voxl_io.h> and add voxl_i2c_init(i2c_bus); to the script and try to build it, the following error is raised:

But when we add voxl_i2c_init(); without an argument, it says:
So the script seem to be connected to libapq8096_io.

We tried to build it in voxl-cross, because voxl-vision-px4 is built in voxl-cross. But libapq8096_io is built in voxl-hexagon. Does the "undefined reference" problem have to do with the different compilers? If so, how can we change the compiler?

Hi @Alex-Gardner,
We resolved the issue using this forumpost:
https://forum.modalai.com/topic/1050/position-flight-is-not-available-after-firmware-update?_=1658251944919

Thanks for the help

Hi @Alex-Gardner,

We recently flashed the voxl to 3.8.0. When we noticed voxl-vision-px4 we reflashed it again with and without wipe, to see if that would resolve it.

Outputs:
voxl-version

voxl-inspect-services

journalctl -u voxl-vision-px4

Thanks in advance!