I'm using RS485 driver on NRF51822 uart. I started software developing with ble_uart exapmle. RS485 as always has direction control inputs. Before data transfer to uart I have to switch driver on transmitting, after transfer complete over uart I have to switch driver on receiving. I can't find transfer complete event. At this time I'm using for experiments APP_UART_TX_EMPTY, but it's not what I need. APP_UART_TX_EMPTY event occurs when FIFO is empty, but last byte transmission is not completed.
