Architectures and Processors forum wfi in debug mode

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wfi in debug mode

sandeep over 8 years ago

Hi,

Please help me understand expected behavior of CM4 when CM4 is in debug mode and WFI is executed through single step.

Does CM4 enter sleep/sleepdeep in such case ?

Thanks,

Sandeep

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Yasuhiko Koumoto over 8 years ago +1 verified

Hello, the CM4 will enter the wait for interrupt mode by executing WFI instruction even in the debug mode. As the CPU clock will not stop in the debug mode, CM4 will not enter the steep/deepsleep modes...

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0 Yasuhiko Koumoto over 8 years ago in reply to sandeep

Hello,
After executing WFI through single_step in debug mode. if I pass one more single_step, Is CM4 expected to stay at WFI.
I think so.
Best regards,
Yasuhiko Koumoto.
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0 Yasuhiko Koumoto over 8 years ago in reply to sandeep

Hello,
After executing WFI through single_step in debug mode. if I pass one more single_step, Is CM4 expected to stay at WFI.
I think so.
Best regards,
Yasuhiko Koumoto.
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