Hi, I’m trying to get the J44 serial working. Right now, the GPIO serial (J41) has no issue working (/dev/ttyTHS1), but /dev/ttyTHS1 is not even passing the “loopback tx to rx” test, and always appears as off in Minicom for example. Do I need to disable something that is using this serial port? My…

J44 serial not working

linuxdev March 4, 2020, 8:44pm 4

Try to also jumper CTS and RTS. If flow control is on, then missing this would block traffic.

Jetson Nano isn't respond when plugin UART jumps on J44