BLE not working

[Alireza Asvadi]

Hi,

I have an nRF5340 DK, and my BLE project runs fine on it. However, when I flash the same code onto my custom board, bt_enable() returns error -11, which seems to be related to bt_hci_open(). Could you help me identify and fix the issue?

Thanks,

[runsiv]

Hi

Do you use internal or external LF crystal on the custom board?
If you use the internal ones the following to your prj,conf 

CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y

CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=n

and your config files for the radio core

Regards

Runar

[Alireza Asvadi]

I use external LF crystal in my custom board (I use MDBT53V-1M module). Also, I switched to the internal clock, 

CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=n

CONFIG_CLOCK_CONTROL_NRF_K32SRC_XTAL=y

I got the same error (-11).