How to read the images from 2 Raspberry Pi camera Simultaneously on TX2-NX?？

[user42496]

Hi, everyone,

I have a custom board powered on TX2-NX which has 2 MIPI camera port. When connect 2 camera at same time, I can read images from either one camera by the following command:

gst-launch-1.0 nvarguscamerasrc sensor-id=0 ! 'video/x-raw(memory:NVMM), width=30, height=30, format=NV12, framerate=30/1' ! nvoverlaysink -e

I want to read the images from both 2 camera simultaneously. However, when I start the second camera after the first one is running, it turn an error:

This is the diagram of the multiplexer of the camera switch:

The diagram of CAM_MUX_SEL output pin from TX2-NX module:

The diagram of CSI signal which transport from MIPI port:

The diagram of two MIPI Camera:

Can someone tell me how to read the images from two camera device simultaneously?
Thanks a lot !

[ShaneCCC]

Using xvimagesink instead of nvoverlaysink like below.

gst-launch-1.0 nvarguscamerasrc sensor-id=0 ! 'video/x-raw(memory:NVMM), width=30, height=30, format=NV12, framerate=30/1' ! nvvidconv ! xvimagesink -e

[user42496]

@ShaneCCC , thanks for your reply.

I changed my plan to use one Respberry Pi and one Arducam, powered by Jetson Xavier-NX. My Jetpack version is 4.6.1, I was told that the driver of Respberry Pi (imx219) and Arducam (imx477) was installed officially since Jetpack version 4.6. (website)
However, after I flashed the board and connected the cameras, both of them didn’t work, no matter which driver I switch in jetson-io.py. I can’t even find any camera devices by using “ls /dev/video*” command. Can someone help me to solve this problem?

[ShaneCCC]

Please consult with Arducam for the driver support.