Following app displays "UART DataBits3 = 8", while 7 is expected
        UARTConfig.Builder builder = new UARTConfig.Builder().setDataBits(UARTConfig.DATABITS_7);
        UARTConfig config = builder.build();
        System.out.println("Config db = " + config.getDataBits());
        UART uart = DeviceManager.open(config);
        System.out.println("UART DataBits3 = " + uart.getDataBits());