ARMv7 still thrown

[AlexisTM]

Dear @josepqp,

CMake still throw armv7 at commit 55877bddf14dd5699662fd61478d421d68bfbc04 architecture, due to line 63.

Bypassed by adding at line 62 :

    elseif("${ARCH}" STREQUAL armv7)
      target_link_libraries(${arg}
        ${catkin_LIBRARIES}
        ${CMAKE_CURRENT_SOURCE_DIR}/lib/arm_32bit/libVimbaC.so
        ${CMAKE_CURRENT_SOURCE_DIR}/lib/arm_32bit/libVimbaCPP.so
      )

[miquelmassot]

Should be solved with last PR (#17).

[AlexisTM]

Thanks :D

NOTE : Tested and working for the 4ece0eec6ba999bab9dc2b2d3bbed9939eea32c6 commit on ROS indigo, under ubuntu 14.04 on the Odroid XU4 (armv7).

The image was not "good", luminosity was flickering, but I think this is just a parameter.

[miquelmassot]

@AlexisTM are you using fluorescent light?

[AlexisTM]

Not at all. Yet, the camera worked well on Windows, with Vimba Viewer.

The problem could be : MTU which was not updated, camera parameters or 50Hz flickering. I will investigate later.

[AlexisTM]

Problem resolved, the default exposure is 1000µS, which make oscillating luminosity due to the 50Hz of the alimentation of the neons.

Putting 10000µS corrects the problem.

[miquelmassot]

Thanks for reporting, @AlexisTM !

[josepqp]

@AlexisTM which Prosilica camera are you using ? Gigabit Ethernet ? I'm using a Gigabit Prosilica GC1380 on a Nvidia Jetson PC (Ubuntu 14.04 32 bits), and I have problems when I visualize images, basically it returns unexpected image size. Is it working ok for you ?

[AlexisTM]

I am using a MakoG 131B with GigE.

If there is an error like : "Image is wrongly formed: step < width * byte_depth * num_channels", then maybe you have set a too high streamrate for your connexion.

Are you sure the Jetson have Gigabit Ethernet?

[josepqp]

Yes it's Gigabit for sure, it's on the data-sheet and also I check it on the system.

I tried different values, but didn't worked. I contacted AVT, and they told me that soon they will publish a new AVT ARM 64 bits driver. I hope with the 64 bits system and driver it will work. For the moment I'm developing code using an x86_64 laptop.

[AlexisTM]

ARM 64 bits drivers won't help you, because you have a 32 bits ARM. The library won't launch at all.

Personnaly, I still have those malformed images, which does not happen on my computer (without ROS).

Maybe we should set SteamFrameRateConstrain in avt_vimba_camera.

hen enabled, the frame rate of the camera is constrained by available bandwidth. When disabled, the camera can image faster than it can send data.

When enabled, the frame rate of the camera is constrained by available bandwidth.
When disabled, the camera can image faster than it can send data.

It should avoid the camera to drop the end of the image if the last image is not sent yet.

[josepqp]

The nvidia jetson tx1 has an ARM 64 bits, that's why I tell you that may be it will improve. Is the old jetson tk1 that is only 32 bits.