Adding custom handler in BLE host mode with external MCU

Hi Dialog team,

I am trying to understand how can I add custom handler to the empty_template_ext. Basically we have STM32 as external processor. We are using UART for communication between STM32 and DA14585 with GTL protocol. We want to operate BLE in scanner/observer mode

With the existing code, I could get BD Address, scan for nearby devices. Now to build the application, we are looking for some custom implementation. Say we want to send a command from STM32 to DA14585 to blink LED, read some GPIO status, how can I achieve this.

From what I understand, we need a custom task and task_id, may be an entry function which receives this message and execute. I am not sure if this is limited to profiles.

Please let me know if my understanding is right.

提前谢谢!