Factory programming of “Secure Serial Bootloader”

[beemavishnu]

Hello,

 

I am using nRF52840, SDK_16.0.0, S140 SoftDevice and Segger 4.16 for flashing the image.

 

As part of my Factory setup we want to download MBR, bootloader, SoftDevice and Application. Later in field we want to do DFU over UART.

 

1) For loading MBR and bootloader, I used “pca10056_uart” and loaded using Segger IDE. But at factory if I want to do the same do I need Segger/jtag interface or using nrfjprog can I flash “Secure Serial Bootloader” ?

2) For SoftDevice I used either nRFConnect Desktop tool or nrfjprog command line on my PC. Using test points I can do the same from Factory PC to nRF52840 chipset. But assume if I want to do on from Android phone whether you have any tools on Android.

 

Thanks & Regards

Vishnu Beema

[bjorn-spockeli]

Aha, then I understand. One of our FAEs has created a C port of nrfutil, see https://github.com/jimmywong2003/nrf-slim-serial-uart-dfu-host-c-code. I would guess it should be possible to adapt this to run on the Android device. 

The source code for nrfutil is available here and its mostly python, so you should be able to run this on the Android device also. 

Best regards

Bjørn