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STM32L072 vs STM32L082 detection

Question asked by Thomas Roell on Dec 13, 2017
Latest reply on Dec 14, 2017 by Uwe Bonnes

This one sounds simple. Essentially STM32L082 has a AES peripheral over STM32L072. I simply want to have a way to find out whether it's there or not.

 

Now RCC->AHBENR does not help. I can set the corresponding bit ... and clear it. RCC->AHBSMENR same thing. Actually there it's set per default. But an access on STM32L072 will trigger a hardfault (I am assuming that from my debugger telling me it cannot access the memory location when I write to it). While that might be a possible detection way, isn't there somethimg simple, like a feature bit somewhere ...

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