Topics created by joe

@john
We compared the baseboards of the J401 and J401B and found no differences. Regarding the earlier issue with the J401, we suspect that the USB hub chip, which is mounted on the same I2C bus as the camera, was intercepting responses for the I2C address 0x3b. This aligns with your hypothesis.

Could you visually inspect the J401B and check if there are any version or sub-model changes in the USB hub chip compared to the J401?

Regarding your intention to test the response issue at address 0x22, you do not need to recompile the device tree blob (dtb). You can directly use the command i2cdetect -y -r i2cnum to perform the test.

@joe The RAW-MIPI-AR0234M is a MONO camera that has no color information and therefore does not support the UYVY data format. Please refer to this link below:
https://wiki.veye.cc/index.php/Mv_series_camera_appnotes_4_jetson#Configuring_global_variables

@joe The software part of the work seems fine. Next, we need to check if the hardware connections are correct, paying particular attention to the orientation of the FFC cable.

@joe yes