OTA DFU application firmware by BLE central device

[chapman]

I want to upgrade a BLE peripheral firmware (nrf52840)  by using another nrf52840 as BLE central.

Do you have any idea how I can do that?

I know how to use android to upgrade the ble peripheral, but I have no idea how to do it by a nrf52840. 

Is there any actual DFU flow about what to  write on DFU characterisitcs ?

Thank you.

Regards, 

Chapman 

[bjorn-spockeli]

HI Chapman. 

I am afraid that we do not have any examples that implement a DFU controller on a nRF52 device, we only have DFU Target examples. 

You can find the documentation on the DFU Protocol over BLE on our Infocenter, see DFU protocol and BLE Transport Layer. This includes Message Sequence diagrams that are very usefull, see Message sequence charts.

Best regards

Bjørn

[Duy]

Hi Chapman,

You can have a look at this similar thread, hope it will work for you.

Best regards,

    duy