DFU 14.2->15.2 (BL+SD+App)

RE: DFU 14.2->15.2 (BL+SD+App)

Henrik — Fri, 22 Feb 2019 11:04:34 GMT

AH!

Thank you for the help! I interpreted the "--sd-id 0xAF,0xBF" flag wrong when I first read the documentation. If I changed it to only "--sd-id 0xAF" in my initial post it worked!

RE: DFU 14.2->15.2 (BL+SD+App)

AndreasF — Fri, 22 Feb 2019 10:31:29 GMT

Hi again Henrik.

Thanks for the clarification :-)

I have ran a test now, with success.

Can you try to follow this procedure?

1. Create a key.pem file.

Use the command

nrfutil keys display --key pk --format code private.pem

To display it on a code format and paste this code into the dfu_public_key.c file in both SDK 14.2 and SDK 15.2

2. Build the bootloader in SDK 14.2 with the dfu_public_key.c file in use.

Build the bootloader in SDK 15.2 with the same dfu_public_key.c file in use.

3. Generate the DFU package with the following command:

nrfutil pkg generate --hw-version 52 --sd-req 0x9D,0xAF --application-version 1 --application <app_file_name>.hex --softdevice <s132_v6.1.0_name>.hex --bootloader <bootloader_with_s132_name>.hex  --bootloader-version 2 --sd-id 0xAF --key-file priv.pem dfu_package.zip

Where you change <app_file_name>.hex, <s132_v6.1.0_name>.hex, and <bootloader_with_s132_name>.hex with the correct file names.

4. Flash 1 device with the bootloader from SDK 14.2 and SoftDevice S132 5.0.0 and reset the device.

Open the nRF Connect BLE Application and Connect to the "DfuTarg" (or what name you have given to the bootloader)

And select the .zip file.

First the SoftDevice and Bootloader are transferred:

Then the Application, and here you can see that the transfer was a success:

Best regards,

Andreas

RE: DFU 14.2->15.2 (BL+SD+App)

Henrik — Fri, 22 Feb 2019 08:20:37 GMT

Hi Andreas,

Sorry for the unclear post, I hope this will make things clearer :)

You wish to do a DFU upgrade where you go from SDK 14.2 to 15.2?

Exaclty.

Which chip/board do you have?

Custom board with an nRF52832_xxaa.

Which SoftDevice are you going from in SDK 14.2?

S132, 5.0.0

Which SoftDevice are you going to in SDK 15.2?

S132, 6.1.0

BR Henrik

RE: DFU 14.2->15.2 (BL+SD+App)

AndreasF — Fri, 22 Feb 2019 08:07:18 GMT

Hi Henrik.

Can we clarify some points?

You wish to do a DFU upgrade where you go from SDK 14.2 to 15.2?

Which chip/board do you have?

Which SoftDevice are you going from in SDK 14.2?

Which SoftDevice are you going to in SDK 15.2?

To do a DFU upgrade where you go from one SDK to another, and also change SoftDevice, you need the following things in the DFU package:

Bootloader with the new SoftDevice
Application with the new SoftDevice
The new SoftDevice

Looking at your nrfutil command it looks like you want to use SoftDevice S132 v6.1.0 in your new Application?

Best regards,

Andreas