Jetson-io.py on Jetpack 4.6

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
1

I am trying to configure the pins to use the spi1 to connect an OLED screen to my Jetson nano. When I try to run jetson-io.py, a grey screen flashes and takes me back to the terminal. The error I get is:
Multiple DTBs found for NVIDIA Jetson Nano Developer Kit!
Although I have one file in /boot/dtb/ named: kernel_tegra210-p3448-0000-p3449-0000-b00.dtb

Any idea how to solve this issue?

2

I am facing the same exact problem, and I have been searching for solutions for days and nothing worked.

4

Hi,
Do you mean you observe the issue while executing jetson-io.py on default image? Or after you have generated the dtb through jetson-io.py, reboot the device and then hit the issue?

5

Hello, I am facing the same issue.
I first run jetson-io.py on the default image with Jetpack 4.6, enabling PWM and SPI.
I have rebooted the device and then hit the issue.

I managed to solve this thanks to the solution in Jetson-io dtc.py bug

c = get_compatible(dtbo).split() → c = get_compatible(dtbo)
and
for c_str in c: → for c_str in c.split():

Hope it helps !

6

hello dodo.ibt,

thanks for sharing,
the changes to fix an error when get_compatible(dtbo) returns None has already check-in to rel-32 code-line,
since the latest L4T release is r32.7.1, you may moving to the latest release for confirmation.
thanks

8

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