DFU Zephyr using USB

[MPDeveloper89]

Hello,

In my application I'm using NORA B106 and I would like to update the firmware using USB.

In my device there isn't any FTDI and I want to use the USB layer available in Zephyr.

Can you help me to understand what are the steps to implement the application?

I think that I need to : 

• Enable the usb software module using Kconfig ( I found the following example)
• Install the driver in Windows to recognize the device

Can I use Zadig?

I tried but no Virtual COM has been detected

• Flashing the software using dedicated tool.

Thank you a lot for your support.

MP

[Vidar Berg]

Hello,

Attached below is an example based on the "Hello world" sample that includes MCUBoot configured with serial recovery support over USB ACM if you want to give it a try. You should not need to install any additional USB drivers for this unless you are working on Windows 7 or older. But you will need to install 'MCUmgr', the command line tool to perform the update: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/services/device_mgmt/mcumgr.html#command-line-tool 

hello_word_w_serial_recovery_nrf53_SDKv2.2.0.zip

Otherwise, if you need to rely on the USB class, you can try the USB DFU Sample Application in Zephyr instead. 

Best regards,

Vidar

[MPDeveloper89]

Hello Vidar,

Thank you for feedback.

I load your example where I added my board:

But, during compilation I found some errors.

In prj.conf

In mcuboot.overlay

Do you know the possible root cause?

Thank.

MP

[Vidar Berg]

Hello,

Did you build the project with an older SDK version? I tested it with v2.2.0, but v2.3.0 should work too. 

Best regards,

Vidar

[MPDeveloper89]

I tried with version 1.9.

Then, I will test it with newer version (2.2.0 I think) and I back.

MP

[Vidar Berg]

Thanks for the update. Yes, this makes sense, the Kconfig symbol was not defined in SDK 1.9.