Distinguish different STM32G0 variants at run-time

[TR01]

Hi,
Is it possible to distinguish an STM32G0B1KBU6N from an STM32G0B1KBU6 based on the UID?
Is it possible to read this UID in FW in order to recognize whether the correct controller is fitted or is this only possible via the SW interface?

[Pavel A.]

There's  some register (or ROM location) that tells the package type.

 

[Andrew Neil]

Here:

https://www.st.com/resource/en/reference_manual/rm0444-stm32g0x1-advanced-armbased-32bit-mcus-stmicroelectronics.pdf#page=1380

 

[mƎALLEm]

These part numbers STM32G0B1KBU6N and STM32G0B1KBU6 difference is the N at the end, UID, Flash size and package information don't give this differentiation. 

So I don't think it's possible to get that information by software.

 

[Andrew Neil]

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@TR01 wrote:

Is it possible to read this UID in FW 

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Yes - see:

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

 

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@TR01 wrote:

Is it possible to distinguish an STM32G0B1KBU6N from an STM32G0B1KBU6 based on the UID?

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It doesn't look like it.

As @Pavel A. said, there may be other ROM locations which may help ...