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Cycle count in cortex m3

Note: This was originally posted on 10th December 2009 at http://forums.arm.com

Hi all,
I am new to cortex m3...
For my application I need to calculate the number of cycles for a particular function....
I set the debug options as high optimization level and optimize for time....

How can I calculate the MIPS/cycles manually for a particular function.
Please suggest me a solution...

Thanks in advance.
Krish.

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devipriya karlapudi over 12 years ago

Note: This was originally posted on 10th December 2009 at http://forums.arm.com

Thanks for the reply....
does armulator serve my purpose?
If so how to start with realview debugger?(any settings).

The low tech solution:

Run it in a loop a _lot_ of times.
Use a stop watch.
((Seconds * MHz) / Loops) = cycles per loop.
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devipriya karlapudi over 12 years ago

Note: This was originally posted on 10th December 2009 at http://forums.arm.com

Thanks for the reply....
does armulator serve my purpose?
If so how to start with realview debugger?(any settings).

The low tech solution:

Run it in a loop a _lot_ of times.
Use a stop watch.
((Seconds * MHz) / Loops) = cycles per loop.
Cancel
Vote up 0 Vote down

Cancel

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