DFU procedure

RE: DFU procedure

Nabil — Thu, 07 Dec 2017 09:08:42 GMT

Thanks for the post.

I think that it's already done

RE: DFU procedure

Hung Bui — Tue, 05 Dec 2017 00:26:15 GMT

Hi Nabil,

Please describe what exactly you want to do ?

Just for your information, I have a blog here. Maybe it's useful for you.

RE: DFU procedure

Nabil — Mon, 04 Dec 2017 13:52:37 GMT

For information I'm working with (to programm softdevice + custom bootloader ) :

flash_custom: 
	@echo custom temporary flash soft_dfu: 
	mergehex --merge /%WORKSPACEDIR%/nRF52832/nRF5_SDK_11.0.0/components/softdevice/s132/hex/s132_nrf52_2.0.0_softdevice.hex _build/nrf52832_xxaa_s132.hex --output SD_BL.hex
	nrfjprog --program SD_BL.hex -f nrf52 --chiperase
	nrfjprog --reset -f nrf52

RE: DFU procedure

Nabil — Mon, 04 Dec 2017 13:49:53 GMT

Thank you very much for your help.

The only thing know is to work with SDK12 to get security level.

RE: DFU procedure

Hung Bui — Wed, 29 Nov 2017 13:24:13 GMT

Hi Nabil,

What exactly do you want ?

You can enter bootloader mode again by holding button 4 on the board when resetting.

If you want to enter bootloader without pressing the button, you would need to implement DFU buttonless service into your application. Basically it's about sending BLE command to tell the application to switch to bootloader.

You can have a look here.

dfu_dual_bank_ble_s132_pca10040.hex is a precompiled hex with the softdevice bundled and the softdevice is the same as s132_nrf52_2.0.0_softdevice.hex