nRF9151 Custom UICR

[toto cho]

I used to use UICR to store the serial number information during the production with nRF52832.

I am working on new project with nRF9151, but when I check the datasheet, nRF9151 doesn't seem to have a reserved area for custom UICR similar to nRF52832.

Before I give up, I would like to double check if nRF9151 really doesn't have any reserved area for the customers,

If not, any other trick to store this kind of factory information? Should I use NVS instead?

[lammobile]

toto cho , Did you try this one?

https://docs.nordicsemi.com/bundle/ps_nrf9151/page/uicr.html
UICR->OTP

[toto cho]

Ah, is this OTP for the custom data? I thought that this has different purpose.

[lammobile]

From 

Nordic Semiconductor AI

The UICR->OTP refers to the One-Time Programmable (OTP) region within the User Information Configuration Registers (UICR) on certain Nordic Semiconductor devices. This region is a special part of non-volatile memory that allows data to be written only once (per halfword), and is typically used to store static configuration values that should not change during the product's lifetime, such as device IDs or cryptographic keys.