DFU serial / USB serial unable to test and verify

[PeteKcSum]

Hi Nordics,

I have been trying out the SDK 15.2 DFU using serial /  usb serial based on this

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v15.0.0%2Fsdk_app_serial_dfu_bootloader.html&cp=4_0_0_4_3_4

Both of which have not been successful.

Testing the USB serial , at least i managed to install the drivers for the SDFU and tried to run the command

nrfutil dfu usb-serial -pkg app_dfu_package.zip -p COM14 -b 115200

to update a precompiled HRS app from the dfu test images folder. It failed with the following response.

As for the serial, didnt even get to install the CDC ACM USB class drivers, so cant test anything.

Any help will be appreciated, thx.

[Sigurd]

Hi,

What command did you use to generate the DFU package ? From the error-code it looks like you forgot to use --sd-req , or that you provided the wrong --sd-req value.

By default, SDK 15.2 uses s140_nrf52_6.1.0, so try using --sd-req 0xAE when generating the package with nrfutil pkg generate

[PeteKcSum]

Hi Sigurd,

the following command was used to generate the pkg

nrfutil pkg generate --hw-version 52 --application-version 1 --application hrs_application_s140.hex --sd-req 0xAE --key-file private.key app_dfu_package.zip

FYI, i am using a 3rd party nrf52840 board for all the testing. details as follows.

https://www.waveshare.com/wiki/File:NRF52840-Eval-Kit-Schematic.pdf

thx

[Sigurd]

Are you sure that your using s140_nrf52_6.1.0 ? 

If you connect a debugger, and use the nRF Connect for Desktop Programmer app, you can read the SoftDevice version that is flashed to the chip.