How to read UID in STM32L476

[mangesh1]

Hi,

How to set UID using CubeMX and read in STM32L476 and use it for device commissioning process?

[MHoll.2]

someting like this:

https://community.st.com/t5/stm32-mcus/how-to-obtain-and-use-the-stm32-96-bit-uid/ta-p/621443

[mangesh1]

Hi NHoLL.2,

I read that post but CubeMX options are not available in my STM32L476(Nucleo-L476R) series.

[MHoll.2 · Accepted solution]

The UID is not handle by CubeMX, you have to access the 3 registers by yourself. Se Chapter 49.1 in the Reference Manual RM0351

[TDK]

UID cannot be set. It can only be read. The STM32L476 does have a UID.

HAL_GetUIDw0/HAL_GetUIDw1/HAL_GetUIDw2 will read the three 32-bit parts of it.