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请教:最近需要使用cortex-a8中PMU进行cycle计数,但是始终不能产生PMCCNTR的溢出中断,请问溢出中断要怎么产生,它的中断号又怎么去获取?
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请教:最近需要使用cortex-a8中PMU进行cycle计数,但是始终不能产生PMCCNTR的溢出中断,请问溢出中断要怎么产生,它的中断号又怎么去获取?
lawen
over 5 years ago
根据手册描述,我是把PMINTENSET的C位写1了,在测试的时候没有产生一个IRQ中断。
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章政
over 5 years ago
in reply to
lawen
WFI之后CPU进入suspend状态,没有时钟,计数器也不增加了,要等待interrupt才会继续
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章政
over 5 years ago
in reply to
lawen
WFI之后CPU进入suspend状态,没有时钟,计数器也不增加了,要等待interrupt才会继续
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