Thingy:91: nRF9160 EEPROM configuration

[ALPT]

Hello, 

I am developing a custom board based on the Thingy:91 design. I hope to be able to run the asset tracking applications initially and build on top of it. 

Nordic documentation refers to information flashed to the EEPROM during factory setup which is critical to operation.
'Information stored in region 0x0600 - 0x07FF is written during the production of Nordic Thingy:91. This is critical for the correct operation and should not be changed.'

I assume my device will need this flashed to work as the thingy:91. How would I got about this? What information needs to be stored here?

Thankyou.

[Øyvind]

Hello, 

I've needed to forward this question to our Thingy:91 team. Will get back to you within today (Thursday). 

Kind regards,
Øyvind

[Øyvind]

Hi, 

Sorry for the late reply. The information is only needed on the Thingy:91 in regards to tuning. As the Thingy:91 is designed to function worldwide, i.e. there are extra values stored in the flash. When designing a custom board based on the Thingy:91 reference design you can omit the flash to reduce the BOM, and store needed information in the nRF9160 flash.

Or you can keep the flash if wanted, the information stored in region 0x0600 - 0x07FF is not relevant for custom designs.

Kind regards,
Øyvind