Hello, I want to create a custom carrier board for the Jetson Orin NX with four cameras using the MIPI_CSI (2-lane) interface. It’s unclear how to properly connect CAM0/1_PWDN. For example, for the third and fourth cameras, it’s clear that pins 118 (CAM2_MCLK) and 216 (CAM3_MCLK) are used for the clock. Could you advise on how to proceed? Thank you for your help.
Please refer to Camera Module Hardware Design Guide for Jetson Orin NX for further guidance.Jetson Download Center | NVIDIA Developer
Wonderful answer. I wrote previously that no information according that, except what I found.
If you need independent control of power down for all 4 cameras then an I2C GPIO expander would be needed. Or you could share power down signal between two cameras depending on your use case.
Thank you. In case grouping camera it is clear: CaM1_PWDN to one group, CaM0_PWDN. In case I2C GPIO What should be on inputs only SDA and SCL? Now I have this schematic
This one is better.
CAM2_CLK is GPIO1,
CAM3_CLK is GPIO11.
(attachments)
MIPI_CSI2.pdf (629 KB)
You could also use any other unused GPIO’s if need independent camera power down control.
Thank you. So it could be GPIO06 and GPIO01.
GPIO001 you plan to use for CAM2_CLK, isn’t it?
Yes, it’s GPIO01 Camera #3( Generic clock output), GPIO11 Camera #4( Generic clock output)
GPIO06 and additional free GPIO would be required then for independent power down control of cameras.
ok, thank you