How to add ota service by using bluetooth mesh and nrf52840

[zhong]

Hi,

      Now I'm using window10,nrf52840 and nrfSDKforMESHV3.1.0, and I want to achieve ota fonction within two nrf52840,I had read the Software Development Kit > Previous versions of nRF5 SDK for Mesh > nRF5 SDK for Mesh v1.0.1 > Getting started,but finally I found that I should use the command:

nrfutil dfu serial -pkg dfu_test.zip -p <COM port> -b 115200 -fc --mesh

So can I finsh dfu service just like buttonless_dfu service insdk15.3.0?By example, using moblie phone to control the ota service,

by the way, I don't know what should I should in this step:

All dfu-enabled mesh devices require a device page that contains information about
the device and the firmware that is installed on the device.The device page is 
generated using the device_page_generator.py script file available in the tools/dfu 
folder. 
This script file uses bootloader_config_default.json file to prepare the device 
page. The public key obtained above must be inserted in this JSON object.

To add the public key information to the bootloader configurator JSON, create a new property named "public_key" and assign the concatenated values of the Qx and the Qy strings to this key. For example:

{
    "bootloader_config": {
        "bootloader_id": 1,
        "bootloader_version": 1,
        "company_id": 89,
        "application_id": 1,
        "application_version": 1,
        "public_key": "ed09a58df6db5cd15b8637304f31d31f4042492ed7c7e4839fbe903f260a2ba1a855e92b72885825481ad56282bcf549ad7455ec46f000f0f62d97eeec883ba6"
    }
}

I just need to modify the file bootloader_config_default.json？(add the public key?),Looking forward to your reply

best regards,

zhong

[Joakim Jakobsen]

Hi. 

It seems that you are mixing between Mesh DFU and normal DFU. 

Mesh DFU and normal DFU is very different, and you should follow the instruction to how to perform DFU in Mesh. 

You can find a step by step guide here on how to perform Mesh DFU:

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.meshsdk.v3.0.0/md_doc_getting_started_dfu_quick_start.html?cp=5_6_0_1_4 

I just need to modify the file bootloader_config_default.json？

 If you aren't using the key, you don't need to modify the bootloader_config_default.json file. 

Best regards, 
Joakim

[zhong]

Hi,

I had finshed the step guide,and I want to know whether there is a guide about OTA(buttonless_dfu).How can we add ota service in another example?

best regards,

zhong

[Joakim Jakobsen]

Hi. 

I suggest that you take a look at this post. 

https://devzone.nordicsemi.com/nordic/b/blog/posts/nrf52832-buttonless-dfu-development-tutorial---github 

Best regards, 
Joakim