- Debug Halt from debugger can wake up CPU from WFI.
https://developer.arm.com/docs/103489919/latest/how-can-a-cortex-m-processor-wake-up-from-wfi-if-interrupts-are-masked-or-disabled
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/ka16222.html - A Debug Entry request can wake up CPU from WFI.
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0552a/BABFEFIG.html
2018년 10월 20일 토요일
JTAG attaching when Cortex-M3 CPU is in sleep state by execution of WFI instruction
When Cortex-M3 CPU is in sleep state by execution of WFI instruction, is it possible to attach JTAG to M3?
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.
References:
[Answer] Yes if the priority of new IRQ is higher than current IRQ.
But, I will confirm it by testing in Cortex-M3 CPU.
References:
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