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深度睡眠下,RTC是否可用RTC8M_D256_CLK时钟源

Posted: Fri Mar 25, 2022 9:14 am
by DJZ1992
RTC8M_D256_CLK时钟源精度较高,在深度睡眠下可以用吗?
手册里说深度睡眠8M的振荡器是禁用的。
但是编程手册说:
Internal 8.5MHz oscillator, divided by 256 (~33kHz): Provides better frequency stability than the internal 150kHz RC oscillator at the expense of higher (by 5 uA) deep sleep current consumption. It also does not require external components.
看起来可以在深度睡眠钟使用
但是实际deepsleep的demo,改为这个时钟源后是无法唤醒的。
是否需要其他配置