Which I2C channels can be used jointly with both MIPI buses?

2025-05-20 20:49

I am using two MIPI channels, M0 and M1, on RV1106G3.
An ordinary CSI-2 camera is connected to M0, and I have no questions regarding this channel.
For the M1 channel, I need to connect two cameras via a multiplexer:
- HDMI
- S-Video
Both video streams are converted into CSI-2 streams using interface conversion chips: TC358743XBG and ADV7280AWBCPZ-M-RL.
Both chips output a CSI-2 stream with all necessary signals required by the MIPI CSI-2 standard.
However, I don't understand how to connect the I2C bus for each camera.
Here are the specific questions I need clarity on:
- Can any of the I2C channels on RV1106 be used for communication over the MIPI bus, or are only specific I2C channels capable of doing this?
- Which I2C channel should I connect the cameras to?
Everything is illustrated in the attached screenshot.

2025-05-21 1:17

Hello, we do not provide technical support for hardware connections. This is because there are numerous factors to consider in hardware design. Any losses resulting from errors are beyond our responsibility. Additionally, based on your schematic, we cannot determine the model of the luckfox pico you are using.
The I2C and MIPI buses are different and have no connection. They are used in controlling the camera because I2C is required for some initialization and control flow operations.

2025-05-21 8:21

Anyway, thank you for your response.