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Where to find the execution cycles of Cortex m7 instruction

tyskin over 8 years ago

for Cortex-M0, M3 and M4, I can find the execution time in their Technical Reference Manual > Programmers Model > Instruction set summary 里面查看

http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0432c/CHDCICDF.html

but for M7 It said that I should go to <ARMv7-M Architecture Reference Manual.>

“The processor implements the ARMv7-M instruction set and features provided by the ARMv7E-M architecture profile. For more information about the ARMv7-M instructions, see the ARMv7-M Architecture Reference Manual.” -----《ARM Cortex-M7 Processor Technical Reference Manual》Programmers Model > Instruction set summary > Binary compatibility with other Cortex processors

But in <ARMv7-M Architecture Reference Manual.> I still can't find it. what should I do?

Top replies

Vanhealsing over 8 years ago in reply to tyskin +1

You know execution time in cycles for instructions, but you should take into account another factors when you want to calculate execution time for some portion of code, such as how many stages in pipeline...