2018년 10월 20일 토요일

Cortex-M3 WFI instruction and wake up by IRQ

[Question] If WFI instruction is executed in ISR of Cortex-M3 CPU, is it possible to wake up from it by arising of new IRQ?

[Answer] Yes if the priority of new IRQ is higher than current IRQ.
            But, I will confirm it by testing in Cortex-M3 CPU.

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