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Reading Cortex-A9 CNTFRQ register using ARM Compiler 5 inline assembly

bsp_user

Hi,

Can I get an example of reading the CNTFRQ register in cortex-a9 using assembly inline of arm compiler 5 (DS built in) ?

I didn't find anywhere...

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  • 0 Arm Employee Badge in reply to bsp_user

    I think Ronan answered on the other thread.  But one comment, for processors that support the Generic Timer, CNTFRQ reports the frequency of the timers - not of the core.  The timer frequency is fixed and typically slower than the core's frequency (which might be subject to DVFS).