SDK12.2.0 & nrf52-DK: Receive bulk data from android app over nordic uart service

[nileshwaghmare3081]

Hello,

I've got some trouble using Nordic Uart Services,

I am using ble_app_uart example and after connection receiving bulk data from mobile app & sending it on UART, but nRF device is able to receive only 1749 bytes.

Whereas device is able to send bulk data to android app. nus_data_handler() should be called when data is received using nus services but its not happening after 1749 bytes .

Where am I making mistake ?

Thanks.

[Martin Lesund]

Hi Nilesh,

 I do not know where you have made the mistake by just the things you are describing.

Are you using an unmodified "ble_app_uart" example and using nRF connect on the mobile side?

Have you tried debugging your code?

A sniffer log from when this is happening would be helpful.

 

[nileshwaghmare3081]

Hi Martin,

I am not using an unmodified "ble_app_uart" example I have made some changes. My device is not freezing ,device is able to send data to app .

Tomorrow I will post sniffer log. nus_data_handler is not getting called where as android app is sending data to ble.

thanks.

[nileshwaghmare3081]

Hi Martin,

I have solved the problem, "p_nus->tx_handles.value_handle" value was changing at runtime.

Thanks for the reply.