Please help me with generating init packet for DFU

[Raghu GS]

Hi, I need help for generating the init packet. I'm using SDK 11.0.0 , s130 on nrf51822. To build bootloader, I've used the sample bootloader with some include path changes for linking. I have my application code ready.

Both my bootloader and application code is working if i load my code through the PC version of Master Control Panel (10.0) since it will generate init packet internally and uploading firmware is successful.

But i want to use android version of NRF Tool - DFU, where i will have to generate distribution packet or application with init packet. I'm using the following command line :-

nrfutil.exe dfu genpkg --application nrf51422_xxac_s130.hex --application-version 0xffffffff --softdevice s130_nrf51_2.0.1_softdevice.hex --bootloader nrf51422_xxac.hex --dev-type 0xffff --dev-version 0xffff --sd-req 0xfeff TEST.zip

this cmd is successful, if i use those generated files for uploading, DFU will fail to upload. Can anyone help me to solve this problem, I'm i missing something or doing something wrong? Is every parameters in command correct? Is there any other alternate solution for uploading my application firmware using my android tab?

[bjorn-spockeli]

I think the softdevice requirement option is incorrect, i.e.

--sd-req 0xfeff should be --sd-req 0xfffe.

[Raghu GS]

Thank you, after changing --sd-req 0xfeff to --sd-req 0xfffe its working fine. I hope this will be useful for someone else too..

[bjorn-spockeli]

Happy to help. :) I would appreciate if you could mark the answer as correct ( click the checkmark in the circle to the left of the answer).