MIPI CSI camera dump image error with RAW12 sensor

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
1

I am use ov490 to generate RAW12 image and pass it to TX2 with MIPI.
Signal flow is below:
OV490(DVP)–>TI UB964EVM(MIPI CSI)–>TX2–>v4l2 dump image

I have used two method to dump image

  1. use v4l2-ctl
v4l2-ctl -d /dev/video0 --set-fmt-video=width=1280,height=720,pixelformat=RG12 --set-ctrl bypass_mode=0 --stream-mmap --stream-count=1 --stream-to=ov490_raw12.raw

ov490_raw12.raw has some content like “0000 0000”

  1. use yavta
./yavta /dev/video0 -c10 -n4 -s1280x720 -fSGRBG12 -Fov.raw

ov.raw-000000.bin has some content like “5555 5555”, sometimes ov.raw-000000.bin has whole correct image.

I assume both “0000 0000” and “5555 5555” are invalidate image content. I have no ideas what is the root cause? Maybe hardware issue (MIPI signal reliability), v4l2 paramter issue, driver or dts configuration issue?

I don’t know how to attach file here. If you need I can share ov490_raw12.raw&ov.raw-000000.bin.

2

Sorry， U can close this topic.

I found it maybe yavta issue. v4l2-ctl except the first image the other images are ok.

3

hello 53216142,

here’s known issue for TX2’s VI drivers,
could you please refer to Topic 1038067 and apply kernel changes to update your kernel driver.
thanks

4

@JerryChang Awesome, you save me from the world.
The problem is solved as expected.

Thanks very much!

5

@JerryChange Do you have any comment with [url]https://devtalk.nvidia.com/default/topic/1046021/jetson-tx2/mipi-csi-frame-rate-issue/[/url].

Thanks for your help.