I have nRF5340dk board and my question is that can I use only networking processor to run the BLE applications? If not why? As the Radio hardware is only connected to networking processor.

[ujur007]

I have nRF5340dk board and my question is that can I use only networking processor to run the BLE applications? If not why? As the Radio hardware is only connected to networking processor.

[Marjeris Romero]

Hi,

On nRF5340, the application core is responsible for starting the network core and connecting its GPIO pins. Therefore, to run any sample on nRF5340, the application core must be programmed, even if the firmware is supposed to run only on the network core, and the firmware for the application core must set CONFIG_BOARD_ENABLE_CPUNET to y. You can use the nRF5340: Empty firmware for application core sample for this purpose.

Samples that directly use the radio peripheral can run directly on the network core, for example the Radio Test sample. However, you must still program the application core to boot up the network core as explained above.

Best regards,

Marjeris