Detection of data transmission failure due to BLE disconnection during data transmission

[musashiyama]

I am using STM32WB5MMGH6 as slave and communicating with host using BLE. I would like to ask a question here: He has read AN5270 and is considering a method for the user to detect when data transmission fails due to BLE disconnection etc. during data transmission. However, this is my first time using BLE and STM32, so I can't decide which is better or how to use them. If anyone knows, please let me know.
what i want to know is

・Notification of completion of data packet transmission from slave
or
・Get the status of the buffer sending data from the slave

The tool used is STM32CubeIDE, which uses MX to automatically generate the FW. thank you.

[Issamos]

Hello @musashiyama 

I suggest you to try both of them to find the best configuration for your project.

Best regards.

II

[musashiyama]

I'm sorry for trying to tell you everything, but there are two ・Notification of completion of data packet transmission from slave or ・Get the status of the buffer sending data from the slave Could you please tell me where to look on AN5270 to try it out? Thank you.