NVMC nrf51822

[Jose Xavier]

Hi,

I just noticed that the nrf51822 doesn't have an eeprom and I already had the pcbs done. Can I use the NVMC to write USER data on the CODE (is it flash memory are?) or should I only use 32 registers provided on UICR?

[Susheel Nuguru]

nRF51822 comes with flash memory that is either 128KB or 256KB depending on which version you have. You cannot use NVMC to write user data on the code as writing to already written memory cannot be done without erasing aleast that page. you probably already know this.

There is limited amount of space on UICR that can also be used to store user data, I cannot remember how much but its atleast 32 registers as far as i remember.