nrf52 DK I2S Data over BLE Integration

RE: nrf52 DK I2S Data over BLE Integration

Einar Thorsrud — Wed, 26 Mar 2025 13:46:34 GMT

Hi,

I am sorry for mentionning Keil, I see now you are using Segger Embedded Studio. But the problem is the same, the ble_nus.c file needs to be added to the project. See here for how to add an existing .c file to the project.

PS: Header files are added differently, by adding the path contaning them to the include path:

PSS: If you are startging from scratch, I would advice using the nRF Connect SDK instead of the old nRF5 SDK that you are using now. See nRF Connect SDK and nRF5 SDK statement.

RE: nrf52 DK I2S Data over BLE Integration

Prasad_2001 — Wed, 26 Mar 2025 10:58:53 GMT

Hi, actually I am new in nrf so I don't have much idea about Kiel in this scenario. Please elaborate so I can show you that thing.
Here I have attached the screenshot of full build>

RE: nrf52 DK I2S Data over BLE Integration

Einar Thorsrud — Wed, 26 Mar 2025 08:57:11 GMT

Hi,

Have you added ble_nus.c to the Keil project as well? Can you show that with a screenshot and also upload the full build log so that I can see if it is compiled and if there are any relevant errors?

RE: nrf52 DK I2S Data over BLE Integration

Prasad_2001 — Wed, 26 Mar 2025 04:21:21 GMT

Thanks for the reply.
I have added the ble_nus.c to the project. Also I have enabled "BLE_NUS_ENABLED"(Check the images added).
I ran Rebuild, But still I am getting the same error.

->Added to path

-> BLE_NUS_ENABLED

RE: nrf52 DK I2S Data over BLE Integration

Einar Thorsrud — Mon, 24 Mar 2025 12:57:53 GMT

Hi,

I am adding your screenshot here to avoid the external service:

I see you get linker errors due to using ble_nus_on_ble_evt though it has not been compiled. So it looks like you have not added components/ble/ble_services/ble_nus/ble_nus.c to the project? That is where this is implemented, and it needs to be added. You also need to set BLE_NUS_ENABLED to 1 in your sdk_config.h.