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Unable to count event in Cortex R4 using PMC

Note: This was originally posted on 22nd July 2011 at http://forums.arm.com

Hi,

I am trying to set the event counter register to count particular event using ARM Cortex R4's performance monitor register.

I followed the steps as in this link..
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/ka4237.html

But it is not counting the events which I set. Only the cycle count is working. I am using RVDS 4.1 prof.

Does RVDS support event counting or is there any configuration error that needs to be corrected?

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Martin Weidmann over 12 years ago

Note: This was originally posted on 28th July 2011 at http://forums.arm.com

If you use real hardware (a board), then yes you will have the PMU present. Remember that by default the PMU is only accessible in privileged modes. User mode access must be manually set if you required.
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Martin Weidmann over 12 years ago

Note: This was originally posted on 28th July 2011 at http://forums.arm.com

If you use real hardware (a board), then yes you will have the PMU present. Remember that by default the PMU is only accessible in privileged modes. User mode access must be manually set if you required.
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