P2RAM memory access on ST25R3916

rolly loysney · ‎2023-01-05

Hello,

I'd like to get access to P2RAM to generate some sort of "Unique ID" between multiple ST25R3916 communicating with a single stm32 host Mcu.

How to get Access & Read this memory ? i saw it was mentioned in the Datasheet but not elsewhere.

Thank you,

Ulysses HERNIOSUS · ‎2023-01-10

Hi rolly,

I think there is very little use for you: the P2RAM itself is volatile. Only on POR of the device it gets loaded with fused data.

You will not be able to change the fuses in your parts. For non-automotive parts it will be mostly empty (except I2C address).

Best Regards, Ulysses

Ulysses HERNIOSUS · ‎2023-01-10

Hi rolly,

I think there is very little use for you: the P2RAM itself is volatile. Only on POR of the device it gets loaded with fused data.

You will not be able to change the fuses in your parts. For non-automotive parts it will be mostly empty (except I2C address).

Best Regards, Ulysses