on our platform , wifi module need a SLEEP_CLK(32.768K) for low power.
At the beginning, I want to use CCM_CLKO1 to supply this 32.768Khz clock.
But i don't know whether CCM_CLKo1 can still supply 32.768K clock after cpu enter sleep status
For sleep state, you mean suspend, right? As all clocks are gated in suspend, although external 32k clock is still there for RTC, but I am afraid you may not get it from CLKO1, you can have a try, if CLKO1 can output 32k in run state but can not in sleep, then I think it is gated. Not very sure about it, better to have a try.
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