RS485

NOTE: RS485_1 mux to the UART_RTS/CTS, default as RS485, if want UART_RTS/CTS, please check the 5.10.2 MYD-AM335X-J have two RS485, is ttyO2 and ttyO3.

• Connect the J18-1 and J18-2 to J18-4 and J18-5, Open the JP5 and JP7. Build and copy the uart_test from"/Examples/uart/", RS485 device node is ttyO2, please refer to uart for the test steps.

    # ./uart_test -d /dev/tty* -b 9600 & ./uart_test -d /dev/tty* -b 9600