zephyr read/wite uicr without nordic API

[ZL_Chiu]

Hi.

i base on web address :  How to access UICR.CUSTOMER[] after setting CONFIG_SOC_FLASH_NRF_UICR=y. (Zephyr on nRF52832) 

step then try to Read/Write UICR with nRF52840 , but can;t found DT_CHOSEN_ZEPHYR_FLASH_CONTROLLER_LABEL in code ,

Could you tell me How to set DT_CHOSEN_ZEPHYR_FLASH_CONTROLLER_LABEL ?

if use flash driver to manager UICR , How about page size  and offset when call flash_erase?

How about max size when call function flash_write ?

[runsiv]

Hi 

I'm looking into your case. Which version of NCS are you using? 

regards

Runar

[ZL_Chiu]

Hi 

Use NCS V2.6.0 

[runsiv]

Thanks. Could you explain your motivation for trying to manage it as a flash device? UICR is suited for one time use like serial numbers as you can see here. 

Just as a heads up, you can not erase UICR while approtect is enabled 

Regards

Runar