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Preventing a CPU core from accessing peripheral registers

Question asked by Andreas Goergner on Jan 17, 2014
Latest reply on Jan 20, 2014 by Andreas Goergner

Dear Vybrid Experts!

 

Is it possible to prevent a specific CPU (the Cortex-M4 for instance) from accessing peripheral registers? I'm aware that there is hardware supported semaphore engine integrated in Vybrid, but if a software is not using the semaphore programming model / the semaphore engine, it looks to me that it is not possible to prevent a CPU from accessing GPIOs or other peripherals (in a case of a software accident / wrong pointers for instance) by hardware.

 

Could you please confirm?

Thanks!

 

- Andreas

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