I’m looking for informations about the use of an RS485 translator with the UART interface. In detail, for RS485 there is the needing to handle a PIN called DE/REn (example component SN65HVD75). this pin determinates if RS485 transceiver is in TX mode or RX mode.
I’m looking to understand if UART of Jetson Nano handle this pin with RTS (with different behaviour of standard uart). I read this
My question is: could the kernel handle this pin? How to impement RS485? Is there a needing to use a GPIO different from RTS to handle this?