nrfutil v0.52 dfu serial / ble - HCI packet in terminal

[Vicnet]

Hi,

I'm using nrfutil to update my nRF52832.

I change target from nRF51822 to nRF52832 and I want be able to bootload my target through own master.

In past, I used hci_dfu_send_hex.py in verbose mode to convert hex file in HCI packet frame.

I would make the think nrfutil.

Can you tell me how can I print in console HCI packet into dfu_transport_serial / send_packet() function?

DFU based on SDK 11.0

[Vicnet]

Could tell me if the nrfutil v0.52 is able to make DFU BLE OTA ?

When I get help with command: nrfutil dfu ble --help. The ble command is not available.

HCI packet generated.51b

---

I modify the nrfutil code v0.52 to add BLE OTA DFU functionality.

I have an error during "compilation":

  File "nordicsemi/__main__.py", line 346, in ble
    ble_backend = DfuTransportBle(serial_port=str(port),target_device_addr=str(a
ddress))
TypeError: Can't instantiate abstract class DfuTransportBle with abstract method
s get_last_error, get_received_response, is_waiting_for_notification, send_contr
ol_data, send_packet_data

main.py
Any idea?

---

I found the solution to generate HCI packet. I have removed the communication protocol BLE / UART and replace sending abstract method by printing packet in terminal

[bjorn-spockeli]

No, pc-nrfutil v0.5.2 supports legacy BLE and serial DFU packet generation, but you can only perform serial DFU with v0.5.2. The ble option was not added until v1.5.0.

[Vicnet]

In 1.5.0 version, the BLE is not legacy ? Only for "modern firmware packages" ? BLE Secure?

[bjorn-spockeli]

Yes it does not support legacy DFU, this is stated on the pc-nrfutil github page, here is the link.

Version 0.5.2 generates legacy firmware packages compatible with nRF SDK 11.0 and older.
Versions 1.5.0 and later generate modern firmware packages compatible with nRF SDK 12.0 and newer

[Vicnet]

Do you have any suggestion to generate HCI packet for BLE OTA? My code is based on legacy DFU (SDK 11.0).

[bjorn-spockeli]

Do you mean generating a firmware packet(i.e. zip-file) for BLE OTA DFU? If so, then you can do that with nrfutil v0.5.2, but you cannot perform the actual update using nrfutil. You have to use our nRF Connect or nRF Toolbox apps for Android/iOS.