Bluetooth functionality not working on my BC805M nrf52805

[Quetzacoal]

Hello,

I am uploading my code with a basic URI to be advertised by the chip.

I am able to build and upload the code for the nrf52832 in my nrf52 DK, the program works normally.

I do the same for the BC805M using the build configuration in the image, the project builds and flashes normally and I can see it is in the memory. However there is no bluetooth activity after.

Is there something I should take into account after flashing the program? Any special configuration for the nrf52805 to enable bluetooth?

Thank you

[Simonr]

Hi

On your BCM805 board, have you connected an external LF 32.768 kHz crysatl to pins 13 and 14? Our samples uses the external LF crystal by default, so if you haven't that would explain why the radio won't work. You can add this to your prj.conf file to use the internal RC oscillator instead: CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y

Best regards,

Simon

[Quetzacoal]

I think the problem is not about the bluetooth, the board will just simply not respond, not outputing the prints nor logs using RTT.

Flashing works fine as I can see the program loaded in the board using nrf connect programmer.

I feel like the board is not running the code at all.

My current board connection is this one

[Quetzacoal]

I am trying to upload a simple program for debugging, I part from the logger example which works for the inbuild nrf52832 in the nrf52 dk board.

My configuration file looks like this

compilation works

flashing also works

But RTT console shows nothing

[Quetzacoal]

I have finally solved my problem by combinining 2 solutions

1. Flashing the merged.hex file, you can find this file in the build folder.

2. Creating child_image folder and creating a file mcuboot.conf with the following line, you can follow this link for more information https://devzone.nordicsemi.com/f/nordic-q-a/93347/enabling-mcuboot-does-not-run-application

CONFIG_CLOCK_CONTROL_NRF_K32SRC_RC=y