What can I do if I want to dfu Bootloader and Application

RE: What can I do if I want to dfu Bootloader and Application

Jeong Hyun Seok — Thu, 12 Oct 2017 00:06:22 GMT

It is great help to me. Thank you Hung Bui. My company's app engineer is trying to make DFU BL first then APP

RE: What can I do if I want to dfu Bootloader and Application

Hung Bui — Wed, 11 Oct 2017 10:43:33 GMT

Hi Jeong,

I afraid BL+APP may not fully supported, my suggestion is to try BL update first and then do APP update separately. It may take some more time but it's the safest way of doing that.

To read out flash, you can use nrfjprog in command line simply write nrfjprog.exe --readcode filename.hex

RE: What can I do if I want to dfu Bootloader and Application

Jeong Hyun Seok — Wed, 11 Oct 2017 10:28:18 GMT

using J-Link, BL programing and Application is okey. no problem
Problem is wireless DFU to my customer's device, which is already around the world.
not tried to read hex out and compare. - could you let me know how to do it?

RE: What can I do if I want to dfu Bootloader and Application

Hung Bui — Tue, 10 Oct 2017 12:50:27 GMT

Hi,

Have you followed my suggestion to do BL and Application update separately first ? Update BL and then Application ?

Have you tried to flash your new application + new bootloader using the cable (not DFU) and verify that it's working ?

You mentioned device not working meaning DFU process worked ? Have you tried to read the hex out and compare to if you flash it using the cable ?

RE: What can I do if I want to dfu Bootloader and Application

Jeong Hyun Seok — Tue, 10 Oct 2017 01:06:00 GMT

Hung Bui.

After long holiday in Korea, I tried and failed.

Let me clear my situation.

My device has firmware with BL+APP+SD+ (SD130 v2.0.0, SDK11)
I make firmware with app_valid_setting_apply.hex which make Application running (not Bootloader)
I want to upgrage Bootloader and Application (watchdog timer added version) via DFU OTA (using nRF connect app of Android)
so, I make BL+APP zip file with nrfutil.exe

nrfutil.exe dfu genpkg --bootloader hex\inoon_wdt_dfu_dual_bank_ble_s130_pca10028.hex --application hex\nrf51822_xxac_s130_v3.1.8.hex hex\gper2_bl_app_v3.1.8.zip

did DFU, but device is not working

RE: What can I do if I want to dfu Bootloader and Application

Jeong Hyun Seok — Thu, 28 Sep 2017 14:03:07 GMT

I tried BL+APP+SD zip file with nrfutil and DFU OTA

but it didnot work well. I think when it boots, Bootloader is working, instead of Application
that's why I thought app_valid_settings_apply.hex might needed

Anyway I will try just you told me to do.

Make BL+APP zip file and DFU OTA.

I will try and comment the result.

thanks for your help.

RE: What can I do if I want to dfu Bootloader and Application

Hung Bui — Thu, 28 Sep 2017 13:35:23 GMT

Then I don't see why app_valid_setting_apply.hex has anything to do here. Again, don't mergehex if you are doing APP+ BL update. To verify please try testing updating the BL, and the Application separately first.

RE: What can I do if I want to dfu Bootloader and Application

Jeong Hyun Seok — Thu, 28 Sep 2017 10:04:29 GMT

OTA DFU Sorry for confusion

RE: What can I do if I want to dfu Bootloader and Application

Hung Bui — Thu, 28 Sep 2017 08:42:38 GMT

Please be more specific, you want to do OTA DFU to update app+BL or you want to flash app+BL using nrfjprog/JLink ?

RE: What can I do if I want to dfu Bootloader and Application

Jeong Hyun Seok — Wed, 27 Sep 2017 13:08:01 GMT

thank you for the comment.

without app_valid_setting_apply.hex - when reboot, It starts Bootloader.
app_valid_settings_apply.hex is from Nordic

RE: What can I do if I want to dfu Bootloader and Application

Hung Bui — Wed, 27 Sep 2017 12:53:22 GMT

Hi,

I believe BL+APP is supported. The DFU master will do 2 phases DFU, replace the Bootloader first and then update the application.
Why do you have to do app_valid_setting_apply.hex. Don't do that, just simply generate your application + bootloader .zip file using nrfutil. Don't do mergehex.