UART connection with Jetson Xavier NX with EN715 carrier board: Minicom not transmitting keystrokes

[kiddo.seamus]

I have been trying to connect to my Jetson Xavier NX connected to the AverMedia EN715 companion board via a UART connection. For this I have connect the board to my computer via the FTDI TTL-232R-3V3 USB to serial cable. I have configured minicom to use the /dev/ttyUSB0 port.

When I connect the Jetson to my computer via this cable and power it on, I can see the boot sequence through minicom. It boots successfully until it gets to the part where it asks for a password. Here I try and enter a password through my computer keyboard, but this does not get passed through. In fact none of my keystrokes do.

Does anyone know why this might be? Could this be a minicom issue or is there an issue with my connection? Everything looks right and the fact that I can see that the jetson is booting leads me to believe at least part of the connection must be working.

Thanks for your help!

[KevinFFF]

Hi kiddo.seamus,

@kiddo.seamus

Here I try and enter a password through my computer keyboard, but this does not get passed through. In fact none of my keystrokes do.

Do you mean that you could not enter anything through keyboard in the console?

Could you help to disable flow control in minicom?

$sudo minicom -s
-> Serial port setup
-> Hardware Flow Control : No

[kiddo.seamus]

That was it!

Thanks so much!