Hello, I am making a board coupled to a NanoPi Neo Core, and a RS485 converter to its UART2. The chip is a MAX1478 and I use the RTS (PA2).   this is my armbianEnv verbosity=1 bootlogo=false disp_mode=1920x1080p60 overlay_prefix=sun8i-h3 overlays=cpu-clock-1.2GHz-1.3v i2c0 i2c1 uart1 uart2 usbhost0 usbhost1 usbhost2 rootdev=UUID=a37457d6-57d2-4f17-a684-157b1a309a73 rootfstype=ext4 user_overlays=neo-core-stable-mac double-spi ds1307 param_uart2_rtscts=1 param_uart3_rtscts=1