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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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Marcus Harnisch over 12 years ago

Note: This was originally posted on 11th December 2009 at http://forums.arm.com

so we can access the DWT only by connecting the board?
I tried like this but did not work....

Not sure if this part of DWT is modelled in ISSM. Did you follow the initialisation procedure in the Cortex-M3 TRM?

Regards
Marcus
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Marcus Harnisch over 12 years ago

Note: This was originally posted on 11th December 2009 at http://forums.arm.com

so we can access the DWT only by connecting the board?
I tried like this but did not work....

Not sure if this part of DWT is modelled in ISSM. Did you follow the initialisation procedure in the Cortex-M3 TRM?

Regards
Marcus
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