Bluetooth device not found when runningthe peripheral bluetooth example on nrf5340 custom board

[Candela]

Hello,

I am using a custom board designed with nrf53. I have connected my board to the PC and the board is recognised properly. I can see the type of MCU (NRF5340) and its serial number in Visual Studio Code. I have tried flashing the BLE peripheral example in the board. The code seems o be flashing correctly (see picture below), but when I try searching for the BLE device, nothing appears.

I have tried it in the 7002_EVK and it works fine.
Does anyone know what could be happening? Do I have to include any internal flash configuration or something similar first ?

Thanks!

Candela

[Håkon Alseth]

Hi,

 

Does your design have DCDC inductors in place, and/or external 32k source?

 

If you do not have a 32k source, please add this to the default configuration for your board (for both app core and net core):

CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y

 

Similar with the DCDC settings if no inductors are in-place:

https://github.com/nrfconnect/sdk-zephyr/blob/v3.3.99-ncs1/boards/arm/nrf5340dk_nrf5340/Kconfig#L8-L21

 

Kind regards,

Håkon