currently I am using the sc16is752 to add a few extra UART's. This is working great. So, I have an extra ttySC0 and ttySC1.
At the moment they work as rs232. I really want to change to rs485 to allow communication by Modbus RTU.
I know the theory that the RTS-flag must be set to switch between transmitting and receiving, but I don't know how to activate it in the overlay (or somewhere else).
Can someone help me activating the rs485 RTS feature?
Thanks in advance.