Architectures and Processors forum Use case of MSP and PSP in Cortex M

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Use case of MSP and PSP in Cortex M

techguyz over 9 years ago

Hi Experts,

What is the key difference between Master Stack pointer and the Process stack pointer and how an OS can take advantage of it ?

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Chris Shore over 9 years ago +2 verified

HI, Having two separate stack pointers allows the operating system to be safer and more robust. Usually, you would configure the operating system toy use Main Stack Pointer (MSP) and user applications...