SDK 12.1.0 DFU service fails to perform firmware upgrade

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

Vidar Berg — Thu, 06 Aug 2020 06:07:26 GMT

It was compiled with the original SDK 12.1.0 release with the only change that I added the write property to the control point. You still get the same problem with my hex file, right? Seems like the difference must be with the phones we use then.

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

RahulR — Wed, 05 Aug 2020 14:12:11 GMT

In my case, boot-loader DFUTARG tab appears back on attempting to perform DFU operation.

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

RahulR — Wed, 05 Aug 2020 14:03:47 GMT

Although I assume that code is same that is available in the SDK folder, is it possible for you to share your code?

I need to compare to spot any difference in the code we are working on.

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

Vidar Berg — Wed, 05 Aug 2020 13:12:50 GMT

Here are some screenshots I took. Note that I went back to the NORDIC_TEMPLATE tab in order to see the transfer plot while the update was ongoing. The last one is when the phone has disconnected from the bootloader re-connected to the new updated application.

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

RahulR — Wed, 05 Aug 2020 12:50:57 GMT

Erased all flash
Downloaded sd_bl_app_settings.hex
Initiated DFU with buttonless_app.zip

Same issue observed with files you shared

What is behavior in your case?

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

Vidar Berg — Wed, 05 Aug 2020 11:33:11 GMT

I used the same nRF connect version on a Pixel 2 phone, but I didn't experience any problems. The phone automatically re-connected with the new app after completing the DFU. Could you try testing this again with the files attached below?

Merged Softdevice, bootloader, template app from SDK 12.1.0:

devzone.nordicsemi.com/.../sd_5F00_bl_5F00_app_5F00_settings.hex

DFU package for test:

devzone.nordicsemi.com/.../buttonless_5F00_app.zip

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

RahulR — Mon, 03 Aug 2020 12:00:24 GMT

Yes, I am still facing same issue. I have to forcefully close nrfConnect App to initiate firmware upgrade.

I am using nrfConnect App : Version 4.24.2

Thanks

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

Vidar Berg — Mon, 03 Aug 2020 11:45:00 GMT

Hi,

No, I don't think so, I only had one response. I have not experienced the issue you described. Are you still seeing the same? Also, which version of nRF connect are you using in case I need to reproduce it here?

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

RahulR — Thu, 30 Jul 2020 11:33:39 GMT

Hi Vidar,

Did your last response got deleted?

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

RahulR — Thu, 30 Jul 2020 10:00:53 GMT

I built Buttonless DFU Template Application with the change as you suggested

char_md.char_props.write = 1; inside rx_char_add() API (Please correct me if wrong)

Below is the behavior observed:

Application is broadcasting "Nordic_Template"
On initiating DFU, application starts boot-loader.
Connection is established with boot-loader
Boot-loader is broadcasting "DFUTARG"
On initiating DFU, App keeps messaging "Initializing..."
Firmware upgrade does not happen
In the background nrfConnect is still connecting with "Nordic_template"
I restarted nrfConnect App.
After that I was able to upgrade Application successfully.

How do I fix this issue?

Thanks,

Rahul

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

Vidar Berg — Thu, 30 Jul 2020 08:31:30 GMT

Hello,

Did you try with the Buttonless DFU Template Application first before you started with the heart rate example? Note that it's not sufficient to just add the BLE DFU service, you also need to include nrf_dfu_flash_buttonless.c and nrf_dfu_settings.c as in the template example.

Also, the DFU control point characteristic lacks the required write permission as noted in the SDK 12.3.0 release notes:

To switch to DFU mode, you must write to the DFU control point.
However, this characteristic is set as read only. Add the following

code line to enable the write property: char_md.char_props.write = 1;
For details, see https://devzone.nordicsemi.com/question/93414/sdk12-ble_app_buttonless_dfu/#95079

RE: SDK 12.1.0 DFU service fails to perform firmware upgrade

RahulR — Thu, 30 Jul 2020 06:36:27 GMT

One think I observed is at the time addition of DFU service, I did not see event handler defined for DFU.

Is it available or do I have write it on my own?