DFU cycle testing

[ms360]

Hi ! 

I have 5 different bootloaders for 5 pieces of hardware that I would like to cycle test OTA DFU with BLE. 
I have some questions

• Why does nrfutil dfu ble require a COM port? the DFU IOS app does not, seems strange, and also fails because I don't have a COM port connected. 
• What's the shortest path to script a BLE DFU from either
  • Mac M2
  • RPI 5
  • Windows 10 machine

The COM port thing is holding me up in mac/windows. 
The RPI5 lack of modern python support + non x86_64 is making this seemingly simple task in to a can of worms  

[Menon]

Hello,

Sorry for the confusion, I was referring to the nRF Util command mentioned here.

Kind Regards,

Abhijith

[ms360]

As was I Abhijith! 

I am wondering how to use a built in BLE interface that I cannot see enumerated as a COM port. 
Is there a driver I need to install? 

You're using windows and it is on COM3, I don't see any BLE adapters as a COM port in windows, or a /dev/tty on mac or RPI linux. 

[ms360]

This is what I'm trying to figure out.

devzone.nordicsemi.com/.../nrfutil-with-the-builtin-ble-interface

[ms360]

So I took my pca10056 dev kit and flashed connectivity firmware on there. 
Then I got the dreaded No ping response after opening COM port. 
usbmodemFE813A68F73E1 is the native USB port of the pca10056. 

% nrfutil dfu ble -pkg V28.zip -ic NRF52 -p /dev/tty.usbmodemFE813A68F73E1  -n "devicename" -f    

Flashing connectivity firmware...

2025-02-10 07:48:42,602 No trigger interface found for device with serial number: FE813A68F73E, Product ID: 0x521B and Vendor ID: 0x1915

Traceback (most recent call last):

  File "nordicsemi/__main__.py", line 1555, in <module>

  File "click/core.py", line 1137, in __call__

  File "click/core.py", line 1062, in main

  File "click/core.py", line 1668, in invoke

  File "click/core.py", line 1668, in invoke

  File "click/core.py", line 1404, in invoke

  File "click/core.py", line 763, in invoke

  File "nordicsemi/__main__.py", line 1200, in ble

  File "nordicsemi/dfu/dfu.py", line 119, in dfu_send_images

  File "nordicsemi/dfu/dfu.py", line 88, in _dfu_send_image

  File "nordicsemi/dfu/dfu_transport_serial.py", line 214, in open

pc_ble_driver_py.exceptions.NordicSemiException: No ping response after opening COM port

[14696] Failed to execute script '__main__' due to unhandled exception!