I am trying to get some definitive information about using the Raspberry Pi Camera V2 on the Nvidia Jetson Nano. There is a lot of information out there but it is confusing and sometimes contradictory.
What I believe to be fact:
The Nano will not work with Pi Camera V1 (the OV5647 chip). It DOES work with Pi Camera V2 (the imx219 chip)
The following command shows video from camera in a window. The image has very low latency, but is quite grainy:
gst-launch-1.0 nvarguscamerasrc ! 'video/x-raw(memory:NVMM),width=3820, height=2464, framerate=21/1, format=NV12' ! nvvidconv flip-method=2 ! 'video/x-raw,width=960, height=616' ! nvvidconv ! nvegltransform ! nveglglessink -e
Dmesg reports some errors with the imx219. Is this normal, or do I have a hardware problem ?
dmesg | grep imx219 [ 1.256995] imx219 7-0010: tegracam sensor driver:imx219_v2.0.6 [ 1.281750] imx219 8-0010: tegracam sensor driver:imx219_v2.0.6 [ 1.305103] imx219 8-0010: imx219_board_setup: error during i2c read probe (-121) [ 1.305137] imx219 8-0010: board setup failed [ 1.305243] imx219: probe of 8-0010 failed with error -121 [ 1.468690] vi 54080000.vi: subdev imx219 7-0010 bound
I don’t get this, but some people report the message:
tegra-vii2c 546c0000.i2c: no acknowledge from address 0x10
Can I confirm device is working using i2c-detect ? i2c-detect -y 7 and i2c-detect -y 8 do not show any devices. Is that correct ?
Cheese does not find the Pi camera. I believe that this is normal and true for everybody, because the csi camera is not a Video For Linux device or a UVC device. This despite installing v4l-utils package as suggested by some.
guvcview does find the camera but is unable to display video. It reports:
Device: vi-output, imx219 7-0010
Frame rate: 21/1 fps
Resolution: 3264 x 2464
Camera Output: RG10 10 bit Bayer RGRG/GBGB (Unsupported)
The problem appears to be that guvcview does not understand the RG10 format. Is there any way to fix that ? Do I need to install something to be able to view the camera output in cheese or guvcview ?