Hi, all:
I want to mircousb on orin agx for debug, but when i plugin the mircousb between orin and my host computer, in my computer their are four port appears.
the ttyACM0 is for the usb type-c beside the 40 pin.
the ttyACM1-4 are for the mircousb
so why there are so many ttyACM*, and what are their respective functions？
which ttyACM* port should be used as debug port and will print the boot process？
Hi mmcly,
J26 (USB micro-B port) → For Debug UART
It generate ttyACM0～ttyACM3. The UART is in ttyAMC0, you can see the uart log before system boot into desktop.
J40 (USB type-C port)
It generate ttyACM4. You can see the uart log after system boot into desktop.
Please refer detail from here: https://developer.nvidia.com/embedded/learn/jetson-agx-orin-devkit-user-guide/developer_kit_layout.html
thx carolyuu. it’s useful
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