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]

Does it works using SDK v13?

[tesc]

The patch is based on SDK v12.1.0. It will not work on other SDK releases. If you need to base it on another version of the SDK then you must port this patched version to the target SDK on your own.

[bjorn-spockeli]

The patch is SDK v12.1.0 specific, however it might work with SDK v13, but I have not tried that.

[MarcoTull]

@tesc I want to port it to another SDK version

@bjorn-spockeli Thank for the info now it is more clear for me

Marco

[tesc]

@marcotull Hi, I have given this some more thought, and it is definitely best to keep it at the SDK and SoftDevice it was originally made for. Porting it would quickly require changes in pc-ble-driver as well. You may have a wish to do all development using the same SDK, I can see great value in that, but in this case it simply is not worth the effort. If you miss functionality in the current version then please let us know, so that we can consider it for future releases.