camera module connection with rockchip processor

[satishkatti]

camera module cam-6gy-152vis with rockchip rv1106g3 board

Below are the pin connections of the adapter board to rockchip let me know what is wrong in this like 
ffc cable is be have alternate connection at the ends of cable on that time if we reverse the cable first pin goes to 22nd pin vice versa.
now my problem is will camera module will on with this connection or no ?
Here are three things 
first image left side is adapter board schematic and right side rockchip ffc connection schematic
below is image has camera module pinout which is snapped on the adapter board

Unable to detect the i2c on the rockchip and unable turn on the camera ?
for more info i have attached full shematic of the both adapter board and rockchip.

Thank you

 

[michaeltang]

Hello Satishkatti,

Thank you for your interest in ST products and welcome to the ST Community.

Before checking the camera module itself, I would first suggest verifying the FFC/FPC cable orientation and the connector mating side on both ends. The cable has front/back sides, and the connector also has a defined contact orientation, so the pin mapping must be confirmed carefully according to the board setup.

I also noticed that on our adapter board (STEVAL-CAM-M0I) there is an I2C level shifter. Assuming the FPC side is a 3.3 V I/O domain and the signal is shifted to VDDIO (1.8 V) on camera module side, the FPC side I2C lines are pulled up to 3.3 V with 2.7 kΩ resistors.

On the platform side, I see MIPI_I2C_SDA' and MIPI_I2C_SCL' pulled up to 1.8 V with 4.7 kΩ resistors as well. So the connection and voltage-level compatibility between the two boards should be checked carefully.

Could you please confirm:
- FFC/FPC cable orientation and connector pin numbering
- Correct pin-to-pin mapping for I2C, power, reset, and clock signals
- Pull-up resistor placement and voltage levels on both sides
- Camera power rails and reset/power-down sequencing

If the I2C is not detected, this is more likely related to wiring or level mismatch than to the camera module itself.

Best regards,

Michael