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看技术手册说是有低功耗RTC功能，可是给的函数是rtc_alarm(enum rtc_idx_t rtc_idx, uint32_t count_ms) 。需要给定RTC开启时间。我想用RTC做万年历，这怎么做啊，能直接读取时间吗。
@melody 您好，问题解决了吗？RTC会不会只是一个计数器？