I send data from nRF Connect to nRF52 DK and this data transfer correctly. But i didn't find this data variable.

[electric eye]

Hi,

I am using SDK 17 version. The file name is ble_app_uart_pca10040. I send to data from nRF Connect app to nRF52 DK and this data reach correctly to nRF52. But i didn't find this data variable in ble_app_uart_pca10040 code file. Anyone can help me? 

Thank you.

[Karl Ylvisaker]

Hello,

The data is received by the application in the nus_data_handler function on the peripheral side, at line 196 of main.c

Best regards,
Karl

[electric eye]

I want to use printf function for this data variable. But i still don't find variable name. How can i use this variable in printf(variable); ? Thanks.

[Karl Ylvisaker]

Hello again,

The data will be available in the BLE_NUS_EVT_RX_DATA event as p_evt->params.rx_data.p_data (pointer to the data) and p_evt->params.rx_data.length (length of the data).

The standard logger output for the ble_app_uart example is through RTT, so you will need an RTT terminal like RTT Viewer from Segger to see these messages.
If you have set the logger level to debug the module itself will dump the raw binary values of the received transfer, with the calls to:

NRF_LOG_DEBUG("Received data from BLE NUS. Writing data on UART.");

NRF_LOG_HEXDUMP_DEBUG(p_evt->params.rx_data.p_data, p_evt->params.rx_data.length);

Best regards,
Karl