Camera driver for UART or SPI on SPE

[tsuchieh.chen]

Hi,
I am trying to enable camera to work with Jetson Orin AGX devkit (SPE with RTOS firmware, not main CPU) by UART or SPI interface, but I can not find any document relating to this topic, would you help to point me to some direction? or I’ll need to modify SPE device tree and write custom driver by myself?
thanks.

[carolyuu]

Hi,

For the camera basic functionality first needs to check the device and driver configuration.
You can reference to below program guide for the detailed information of device tree and driver implementation.
https://docs.nvidia.com/jetson/archives/r36.3/DeveloperGuide/SD/CameraDevelopment/SensorSoftwareDriverProgramming.html?highlight=programing#sensor-software-driver-programming

Please refer to Applications Using V4L2 IOCTL Directly by using V4L2 IOCTL to verify basic camera functionality.
https://docs.nvidia.com/jetson/archives/r36.3/DeveloperGuide/SD/CameraDevelopment/SensorSoftwareDriverProgramming.html?highlight=programing#to-run-a-v4l2-ctl-test

Once confirm the configure and still failed below link help to get log and some information and some tips for debug.
https://elinux.org/Jetson/l4t/Camera_BringUp#Steps_to_enable_more_debug_messages

Thanks!

[tsuchieh.chen]

Hi,
thanks for the info, does these documents apply to SPE(Cortex R5) as well? as the document seems referring to kernel(Linux) on main CPU.

[ShaneCCC]

SPE don’t support camera.

Thanks