PIN configuration

General Discussion
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1

Hi,

I’m playing with some serial periph on BBAI(AM57xx based) and faced a strange issue.
I’m trying to use UART3 which according to map should be on P9_21 and P9_22.
thus I’m using config-pin tool to set corresponding PINs to UART mode and thus S2 should be active now. But it isn’t. Nothing is being red from S2 by my program (as well as minicom displays nothing). I’m tried both Debian10+4.19 as well as Debian12+5.10 kernel. The same issue.

Just to confirm that my device is providing input to the bone, I connected it through USB-Serial converter, and that works perfectly fine.

Do I miss something in pinmux configuration?

2

Hello…I was unaware that config-pin worked on the BBAI.

Seth

P.S. I think whatever is available, is just that (available). No config-pin needed. I used to use the board and found that many of the files were located in /dev/bone/.