DSPS Connection port indication problem

Hi,

I use Murata module Type ZY (DA14580) daughter board with P2ML3078 evaluation board.
I connected the evaluation board to STM32L152 discovery evaluation board.
I use SPI (from STM as master) to load the code to the device, and use USART for communication with the device.

When I load the DSPS code to the device I manage to connect to a smart phone and start USART communication.
I try to add IO port indication to know if the device is connected (in my final design I will use P1_0 to signal the host MCU (STM) that the device is connected so USART communication will happen only if connection is active).

I did the following changes to the DSPS code:

In function "main_func“我添加以下行后调用toperiph_init()function.

GPIO_SetPinFunction(GPIO_PORT_1, GPIO_PIN_0, OUTPUT, PID_GPIO);
GPIO_SetInactive(GPIO_PORT_1, GPIO_PIN_0);


At the end of the functions "app_disconnect_func" and "app_adv_start" I added the following line so the port will be low when the device is not connected.

GPIO_SetInactive(GPIO_PORT_1, GPIO_PIN_0);


At the end of the function "app_connection_func" I added the following line so the port will be high when the device is connected.

GPIO_SetActive(GPIO_PORT_1, GPIO_PIN_0);


After adding these lines I no longer able to find the device on my phone.
Ideas?
Thank you