How to set Product identifier and product version through dfu?

[Anaya]

Hello,

I am trying to set product identifier and product version in application hex file, then bundled this hex file in zip using nrfutil tool, and performed dfu, then I checked product identifier and version in nrf mesh app for expected change, but it does not get, it is getting 0000 as product identifier and 0001 as version resp. In hex file, these two values are wrote at address 0x10001080, It seems that this address is skipped by dfu?

Could you suggest any other solution to set product identifier and product version, or please guide where I am going wrong?

Regards,

Anaya

[Edvin]

Hello,

I don't recommend storing the FW version in the UICR. It is very risky business to update the UICR from the app. The UICR is intended to be written during production, and never updated for the lifetime of the product. I would recommend just storing the application version in the application itself.

#define application_version "1.2.3"

Or alternatively in an FDS record. Is there a particular reason why you need to store it in the UICR?

[Anaya]

Hi,

Thanks for your reply.

We have 5-6 types of products.

We are programming bootloader in all the nRF modules in bulk.

Then we program firmware using DFU to all products through OTA.

My requirement is I want to identirfy the products using product identifier and version, so that I want to program these characteristics while DFU.

Is it possible through DFU process?

[Edvin]

You can store the product identifier in the UICR, because it doesn't change during the lifetime of the product (right?). But you can't update the data in the UICR. 

How do you read out the UICR during an OTA anyway? 

[Anaya]

Ok, but I don't want to read while OTA, I want to write these properties.

 I want to read it while configuration after providing of node.

[Edvin]

Ok. As mentioned in my initial reply, I recommend that you set the FW version in the application. In a similar way as the ble_app_hrs example from SDK16 sets the MANUFACTURER_NAME, you can use the Device Information Service to store the Firmware version:

#define MANUFACTURER_NAME                   "NordicSemiconductor"
#define FW_REVISION_STRING                  "1.2.3"

//in services_init()

...
    ble_srv_ascii_to_utf8(&dis_init.manufact_name_str, (char *)MANUFACTURER_NAME);
    ble_srv_ascii_to_utf8(&dis_init.fw_rev_str, (char *)FW_REVISION_STRING);
...