OTA for NRF52833

RE: OTA for NRF52833

Amanda Hsieh — Wed, 03 Aug 2022 07:08:49 GMT

Happy to hear it's working now. 🙂

-Amanda

RE: OTA for NRF52833

sne_333 — Wed, 03 Aug 2022 04:08:35 GMT

Hi Amanda,

No worries. The issue was solved. It is working now.

Thank you.

RE: OTA for NRF52833

Amanda Hsieh — Tue, 02 Aug 2022 13:36:19 GMT

Hi,

Sorry for the late reply. Due to the summer holidays in Norway, we are in less support staff than usual.

----

What is your mergehex version (mergehex -v)? I use v10.16.0 and don't get the error. Try to use the latest version of nRF Command Line Tool.

-Amanda

RE: OTA for NRF52833

sne_333 — Thu, 28 Jul 2022 06:30:31 GMT

Hi,

Ok I will share you the files.

The command use to generate settings.hex is as follows:-

nrfutil settings generate --family NRF52833 --application app.hex --application-version 1 --bootloader-version 1 --bl-settings-version 1 settings.hex

Then I merge my softdevice,bootloader and settings.hex to generate merged_SD_bootloader.hex.

mergehex -m s140_nrf52_7.2.0_softdevice.hex bootloader.hex  settings.hex -o merged_SD_bootloader.hex

Finally I merge merged_SD_bootloader with my application app.hex.

mergehex -m merged_SD_bootloader.hex app.hex -o final.hex

Please let me know if the order of commands is wrong.

devzone.nordicsemi.com/.../7853.s140_5F00_nrf52_5F00_7.2.0_5F00_softdevice.hex devzone.nordicsemi.com/.../2148.settings.hex devzone.nordicsemi.com/.../2543.bootloader.hex devzone.nordicsemi.com/.../8400.app.hex

Thanks & Regards,

Snehal.

RE: OTA for NRF52833

Amanda Hsieh — Wed, 27 Jul 2022 11:55:05 GMT

Hi,

You can use nRF Connect for Desktop/Programmer to check the memory layout and then modify the address of the bootloader or application.

If you don't know how to do that, please upload the images of SD, bootloader, App, and setting.

-Amanda

RE: OTA for NRF52833

sne_333 — Wed, 27 Jul 2022 07:29:55 GMT

I actually tried to create settings using that command, settings was generated. but when I tried to merge it with my (sd+boodloader+application) hex file I am getting errors:

The command used to generate settings is actually :-

nrfutil settings generate --family NRF52 --application app.hex --application-version 1 --bootloader-version 2 --bl-settings-version 1 settings.hex

guess some issue with version ??

Thanks & Regards,

Snehal.

RE: OTA for NRF52833

Amanda Hsieh — Wed, 27 Jul 2022 07:26:26 GMT

Looks correct.

-Amanda

RE: OTA for NRF52833

sne_333 — Wed, 27 Jul 2022 07:10:12 GMT

So for NRF52833, this will be the command to generate settings file?

nrfutil settings generate --family NRF52833 --application app.hex --application-version 3 --bootloader-version 2 --bl-settings-version 1 settings.hex

RE: OTA for NRF52833

Amanda Hsieh — Wed, 27 Jul 2022 07:05:24 GMT

Hi,

[quote user="snehal_2789"]After running this script I load the generated merged hex file into device. [/quote]

If you flash that generated merged hex file into the device, you would also need to program the Bootloader settings page.

-Amanda

RE: OTA for NRF52833

sne_333 — Tue, 26 Jul 2022 13:39:49 GMT

Hi Amanda,

I know its too late to reply but I have successfully manages to do OTA on NRF52833. Now my only issue is when for the first time I program the device, I am using merge hex to combine the softdevice,bootloader and application file. I give the following script to generate merged hex file:-


@echo off

:: # Check to make sure nrfjprog is installed before moving on
WHERE >nul 2>nul nrfjprog
IF %ERRORLEVEL% NEQ 0 (
ECHO "nrfjprog was not found in PATH, please install using windows installed as found on nordicsemi.com"
goto :end
)
WHERE >nul 2>nul mergehex
IF %ERRORLEVEL% NEQ 0 (
ECHO "mergehex was not found in PATH, please install using windows installed as found on nordicsemi.com"
goto :end
)

SET S140=s140_nrf52_7.2.0_softdevice.hex
SET BOOTLOADER=bootloader.hex
SET APPLICATION=application.hex

echo "## Looking to make sure %S140% exists"
if not exist %S140% (
echo "#### s140 hex file does not exist! Make sure the softdevice is in the same folder as this script!"
goto :end
)
echo.

echo "## Looking to make sure %BOOTLOADER% exists"
if not exist %BOOTLOADER% (
echo "#### Bootloader hex file does not exist! Please make sure its compiled, copied, and renamed into this folder!"
goto :end
)
echo.

echo "## Looking to make sure APPLICATION% exists"
if not exist %APPLICATION% (
echo "#### APPLICATION hex file does not exist! Please make sure its compiled, copied, and renamed into this folder!"
goto :end
)
echo.

mergehex -v

echo "## Merging S140 and bootloader, then flashing it to nRF52-DK; make sure the DK is powered on and connected to the PC"
mergehex -m %S140% %BOOTLOADER% %APPLICATION% -o merged_SD_bootloader.hex
nrfjprog --program merged_SD_bootloader.hex --chiperase
echo.

echo "## Please power cycle the DK and then with nRF Connect, make sure the board is in bootloader mode and ADV as DfuTarg"
echo.

:end
pause

After running this script I load the generated merged hex file into device. Now what I have observed is the device stays in the bootloader mode. It does not automatically go into application mode.

What changes are needed to do so that after flashing this merged hex file, the device will come out of bootloader mode and start running the application.

I am getting the following error:-

00> <info> app: Inside main
00>
00> <info> nrf_dfu_settings: Old settings page detected. Upgrading info.
00>
00> <info> nrf_dfu_settings: Backing up settings page to address 0x7E000.
00>
00> <info> app: No firmware to activate.
00>
00> <warning> app: Boot validation failed. App is invalid.
00>
00> <info> nrf_bootloader_wdt: WDT is not enabled
00>
00> <info> app: Entering DFU mode.

I saw many threads on it but could not find the link to what I am missing. Please help.

Thanks & Regards,

Snehal Bundele.

RE: OTA for NRF52833

Amanda Hsieh — Wed, 08 Jun 2022 06:13:24 GMT

Hi,

My colleague, Vidar, created a new 'pca10100' configuration for the buttonless template app in this thread. Please try it.

-Amanda

RE: OTA for NRF52833

sne_333 — Wed, 08 Jun 2022 06:04:13 GMT

Thank you for the reply Amanda. How can I start to develop OTA for nRF52833?? I wanted to buttonless OTA for nrf52833. Will you please guide me?

RE: OTA for NRF52833

Amanda Hsieh — Wed, 08 Jun 2022 06:01:46 GMT

Hi,

No, the CryptoCell library requires hardware support and is therefore available only on the nRF52840 SoC.

-Amanda

RE: OTA for NRF52833

sne_333 — Tue, 07 Jun 2022 10:02:18 GMT

Hi Amanda,

Thank you for your reply. So if we want to implement NRF_CRYPTOCELL in nrf52833, can we do that?

Thanks & Regards,

Snehal

RE: OTA for NRF52833

Amanda Hsieh — Tue, 07 Jun 2022 09:05:19 GMT

Hi,

[quote user=""]Now I wanted to perform OTA on NRF52833. How can I modify these memory settings to do a successful OTA ?What needs to be changed in the MEMORY SEGMENTS for NRF52840?[/quote]

You can refer to the memory address of secure_bootloader and ble_app_uart and for nRF52833 (pca10100).

[quote user=""]It also seems that there is no NRF_CRYPTOCELL in the NRF52833 dfu project. Can we add NRF_CRYPTOCELL for nrf52833 like it is added in nrf52840?? [/quote]

nRF52833 doesn't have CRYPTOCELL — ARM TrustZone CryptoCell 310 as nRF52840 in hardware.

Regards,
Amanda