DFU PROCESS

[SAIF]

Hi,

I am using  Nrf Sdk Mesh V3.1.0 with softdeviceS132 and sdk board Nrf52832 and esp module

I want to implement Dfu process for my devices preset in mesh network and for those devices i want to update firmware to only particular device without using nrf connect or any other APK

So My Dfu generated Zip package will be present in server and from server data will be send to ESP and from ESP through Serial Communication is send to One of my customized nrf52 board.Now that Customized nrf52 Board will be responsible to Update Other Device Firmware through Advertising.

So,Actually i need to know is there any particular method of such kind.

please help me to solve this.

Thank you in advance.

[Ans Hafeez]

First you need to burn bootloader which uses UART. for info

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

Now on other side needs to implement DFU master. DFU master could be any device with interface UART.

Just to grasp the process or understanding you can make your PC DFU master. You can use 

https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-Util

then use UART bridge like FT232 and perform DFU.

In your case you will need to implement DFU Master in ESP