DFU

RE: DFU

Amanda Hsieh — Tue, 20 Jul 2021 06:38:23 GMT

Please refer to Step 4 – Create a product release image including all components in the nRF52832-buttonless-dfu-development-tutorial.

-Amanda H.

RE: DFU

harrys — Tue, 20 Jul 2021 06:24:37 GMT

yes i found it when i program with pre compiled hex files.

what i am doing is

1. program the nrf52dk with ble_debug bootloader

2.then i programmed dk with "ble_app_dfu_buttonless" example in ble_peripherals.there is no advertisement of any data

RE: DFU

Amanda Hsieh — Tue, 20 Jul 2021 06:16:56 GMT

Hi,

Do you see the DFU icon as the following figure?

-Amanda H.

RE: DFU

harrys — Mon, 19 Jul 2021 14:37:01 GMT

hi,

i want to implement buttonless_dfu with my code.

as i found here

https://github.com/gamnes/nRF52832-buttonless-dfu-development-tutorial

buttonless example runs but it doesnot shows dfu icon

RE: DFU

Amanda Hsieh — Thu, 01 Jul 2021 06:31:36 GMT

Hi,

There is no such thing as " buttonless dfu bootloader". You need to do is to implement the buttonless service into your application(i assume it's a BLE application). The buttonless example provided in the SDK is an example of how to implement buttonlessDFU service into your application.

-Amanda H.

RE: DFU

harrys — Thu, 01 Jul 2021 06:18:04 GMT

i was looking for something that doesnot include button

RE: DFU

Amanda Hsieh — Thu, 01 Jul 2021 06:16:12 GMT

I think you are using BLE Secure DFU Bootloader and buttonless_dfu, so the bootloader supports that Button assignment. See BLE Secure DFU Bootloader-Button assignment.

-Amanda H.

RE: DFU

harrys — Thu, 01 Jul 2021 06:07:09 GMT

but i am working on buttonless_dfu.

RE: DFU

Amanda Hsieh — Thu, 01 Jul 2021 06:05:27 GMT

Holding Button 4 on the nRF52DK during startup makes the device enter DFU mode.

-Amanda H.

RE: DFU

harrys — Wed, 30 Jun 2021 13:45:36 GMT

i did buttonless_dfu code in nrf52dk .what happened it advertise "NORDIC_BUTTONLESS" and then i did another code with mobile app. how to get back to dfu mode

RE: DFU

Amanda Hsieh — Wed, 30 Jun 2021 06:13:51 GMT

In your command, modfiy "ble_app_blinky_pca10040_s132.hex" to ble_buttonless_dfu image. Also see nRF52832-buttonless-dfu-development-tutorial

-Amanda H.

RE: DFU

harrys — Tue, 29 Jun 2021 13:08:43 GMT

can you tell me how i can do the same with ble_buttonless_dfu example.

RE: DFU

harrys — Tue, 29 Jun 2021 12:51:56 GMT

yes it works. thank you

RE: DFU

Amanda Hsieh — Tue, 29 Jun 2021 12:23:24 GMT

Hi,

The segger will load the softdevice hex before programming the secure_bootloader_ble_s112_pca10040_debug if you check the log. That is the same as you did merge and program. You could press "build and run" in the segger for pca10040_s132_ble. It did the same thing.

-Amanda H.

RE: DFU

harrys — Tue, 29 Jun 2021 12:13:56 GMT

i have not merged softdevice hex file and secure bootloader dfu debug.hex in debug example .

i directly programmed it with SEGGER EMBEDDED STUDIO. and then programmed blinky.zip file with mobile app. and it works.

RE: DFU

Amanda Hsieh — Tue, 29 Jun 2021 11:56:47 GMT

The procedure and commands look correct. The same flow can work with "pca10040_s132_ble_debug", then it supposed to work with "pca10040_s132_ble".

-Amanda H.

RE: DFU

harrys — Tue, 29 Jun 2021 11:29:39 GMT

can you verify my steps.

1.merged hex file secure bootloader and soft device used with following command.

"mergehex -m C:/Users/techn/Desktop/dfu/secure_bootloader_ble_s132_pca10040.hex C:/Users/techn/Desktop/dfu/s132_nrf52_7.2.0_softdevice.hex -o C:/Users/techn/Desktop/d fu/bootloader.hex"

2.generated dfu pkg with following command.

"nrfutil pkg generate --hw-version 52 --application-version 1 --application ble_app_blinky_pca10040_s132.hex --sd-req 0x0101 --key-file private.key app_dfu_blinky.zip
Zip created at app_dfu_blinky.zip"

3.programmed generated dfu zip file with mobile app "nordic_connect".

4.after the programming done . nrf52dk advertise "dfutarg". can you tell any thing i am missing in these steps

RE: DFU

Amanda Hsieh — Tue, 29 Jun 2021 11:13:46 GMT

Hi,

They are almost the same except for the debug function, so pca10040_s132_ble should work. I have tested both can work. Erase the kit (nrfjprog --eraseall) before program the image.

-Amanda H.

RE: DFU

harrys — Tue, 29 Jun 2021 09:03:04 GMT

yes it works with "pca10040_s132_ble_debug". not with "pca10040_s132_ble".

RE: DFU

Amanda Hsieh — Tue, 29 Jun 2021 08:48:44 GMT

Hi,

Please use bootloader debuger version under SDK\nRF5_SDK_17.0.2\examples\dfu\secure_bootloader\pca10040_s132_ble_debug, and provide the log from J-Link RTT Vierwer or Segger.

I would suggest you compile the ble_app_blinky_pca10040_s132 project and test the image under nRF5_SDK_17.0.2\examples\ble_peripheral\ble_app_blinky\pca10040\s132\ses\Output\Release\Exe

-Amanda H.

RE: DFU

harrys — Tue, 29 Jun 2021 06:41:08 GMT

1.using mergehex to mergehex files

$ mergehex -m C:/Users/techn/Desktop/dfu/secure_bootloader_ble_s132_pca10040.hex C:/Users/techn/Desktop/dfu/s132_nrf52_
7.2.0_softdevice.hex -o C:/Users/techn/Desktop/dfu/bootloader.hex
Parsing input files.
Merging file "secure_bootloader_ble_s132_pca10040.hex" into output.
Merging file "s132_nrf52_7.2.0_softdevice.hex" into output.
Storing merged file.

2.command i am using for dfu pakage generate.

nrfutil pkg generate --hw-version 52 --application-version 1 --application ble_app_blinky_pca10040_s132.hex --sd-req 0x0101 --key-file private.key app_dfu_blinky.zip

Zip created at app_dfu_blinky.zip

RE: DFU

Amanda Hsieh — Mon, 28 Jun 2021 06:41:08 GMT

Hi,

What is the error message? Can you provide the log from the nrf mobile app and secure bootloader debug version?

How do you generate the update package? Please post the command you are using.

-Amanda H.

RE: DFU

harrys — Fri, 25 Jun 2021 14:01:25 GMT

i have merged the two hex files "secure bootloader dfu example code" and "softdevice_hex file". programmed it in nrf52dk.

now nrf52dk is advertising "dfuTarg". when i program the device (blinky_ble_code) with nrf mobile app. programming done but nrf52dk is still advertising "dfuTarg".

RE: DFU

Amanda Hsieh — Fri, 25 Jun 2021 12:49:19 GMT

Hi,

Check out https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/getting-started-with-nordics-secure-dfu-bootloader

-Amanda H.