Problem with GXC-MIPI-IMX662

[veye_xumm]

@alex_ai
Good news — I've found a solution to the issue. The camera's MIPI signal needs to be switched to continuous clock (non-discontinuous) mode. You can do this by running the following command: https://wiki.veye.cc/index.php/Gx_mipi_i2c.sh_user_guide#nondiscontinuousmode — or alternatively by setting register 0x44c in veye_viewer.
After making the change, please use the paramsave command to save the settings to the camera.

[alex_ai]

Hi @veye_xumm
I tried to set value to 1

rms@raspberrypi10:~/source/raspberrypi_v4l2/gx_i2c_tools $ ./gx_mipi_i2c.sh -r nondiscontinuousmode -b 6
Read Nondiscontinuous_mode is 1

But when click "Start Show" - no video in veye_viewer (same as in python) just nothing happened (it works when back value to 0)

Maybe need also change some another parameter?

[veye_xumm]

@alex_ai

@alex_ai said:

./gx_mipi_i2c.sh -r nondiscontinuousmode -b 6

use -w, not -r.
-w means write.

[veye_xumm]

@alex_ai
No need to set it up manually anymore! We've updated the driver, so just grab the latest code, compile it, and install it.
https://github.com/veyeimaging/raspberrypi_v4l2

[alex_ai]

@veye_xumm said:

use -w, not -r.

Yes, I know, I just wanted to confirm that nondiscontinuousmode is set to 1 :

Read Nondiscontinuous_mode is 1

I installed new driver and no differences - no video for value 1

My PiOs : 6.18.39+rpt-rpi-2712
dmesg log:

[    2.624024] gxcam 10-003b: veye gx series camera driver version: 01.00.04
[    2.624247] gxcam 10-003b: no reset gpio provided
[    2.685103] gxcam 10-003b: camera is: GXC-MIPI-IMX662
[    2.688265] gxcam 10-003b: VideoModeCap: 0x2
[    2.706466] gxcam 10-003b: gxcam_enum_controls success

example of veye_viewer and no video

[veye_xumm]

@alex_ai
Register 0x44c should indeed be configured to 1.
This is quite strange, as the image preview works perfectly on our end with the exact same configuration.

1. Are you viewing the image via remote desktop?
2. Under the same conditions, does setting register 0x44c to 0 produce an image (with jitter), while setting it to 1 results in no image at all?

[alex_ai]

@veye_xumm said:

Are you viewing the image via remote desktop?

yes, also just tried with hdmi - same

@veye_xumm said:

Under the same conditions, does setting register 0x44c to 0 produce an image (with jitter), while setting it to 1 results in no image at all?

yes, it works if set 0 with jitter and no image with value 1, I recorded video to demo

test_3x264.mp4.txt

[alex_ai]

Just tried to run it on Rpi4 (bookworm 6.12)
It is same: no image for setting 1 but for 0 - no jitter!

Probably this issue only for Rpi5 (trixie 6.18).

Not sure how it works for you with value 1, I tested on 2 devices and it same no image for value 1

[veye_xumm]

This post is deleted!

[veye_xumm]

@alex_ai

1. Roll back yesterday's driver update. For Raspberry Pi, keep using the MIPI clock discontinuous mode.
2. Upgrade the camera firmware. Please refer to this link: https://wiki.veye.cc/index.php/GX_camera_firmware_update_manual and update the camera to version GXC-MIPI-IMX662_C1.34_L2.19_20261014_upgrade.bin.

This should resolve your issue.

It appears that the piOS update changed the MIPI signal timing requirements on the Raspberry Pi 5 (which uses the RP1 chip to receive the MIPI signal).

[alex_ai]

@veye_xumm said:

This should resolve your issue.

The issue finally fixed, thank you for support!