STM32是以Cortex-M3为核的处理器，该例程介绍STM32下如何对实时钟RTC进行操作。RTC可保存时间，由电池供电。-Cortex-M3 based STM32-core processor for the routine introduction STM32 how to operate in real-time clock RTC. RTC to save time, by the battery-powered.
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