nrfutil DFU BLE and connectivity firmware

[MarcoTull]

Hey Guys,

I noticed when I use nrfutil DFU BLE command on the nRF52 DK the nrfutil program a "connectivity firmware" before the perform the DFU BLE to a Target device.

The issue I am facing is I am using a custom hardware with a different pinout that nRF52 DK and with no J-Link OB like the nRF5X DK boards. Making incompatible it with the "connectivity firmware"

Are there any documentation to use nrfutil DFU BLE using a custom hardware with no J-Link OB chip? or where can I find an using that firmware (I dont know the correct name) to edit the board.h and make it compatible with my hardware and be able to make BLE DFU from a window PC

Regards, Marco

[bjorn-spockeli]

Hi Marco,

in order to create connectivity firmware that is compatible with custom nRF52 hardware you have to apply the sdk121_connectivity.patch, found here in the pc-ble-driver GitHub repo, to the connectivity example in SDK v12.1.0. You can find the connectivity example in examples\ble_central_and_peripheral\ble_connectivity\pca10040\ser_s132_hci. You can then change the pinout in pca10040.h or create a custom_board.h to match your custom hardware.

Best regards

Bjørn

[MarcoTull]

@Terje SchjelderupTerje Thanks for the reply. Before I made any changes I am trying make to work the connectivity firmware with no luck. I am able to compile it using gcc, but when I runnrfutil DFU BLE it keeps programming other 'connectivity firmware' removing the one I programmed before

update:

I am getting the following error:

Thanks, Marco