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STM32L151中RTC_WakeUpCmd（）函數(shù)帶來了系統(tǒng)延時(shí)
ErrorStatus RTC_WakeUpCmd(FunctionalState NewState){__IO uint32_t wutcounter = 0x00;uint32_t wutwfstatus = 0x00;ErrorStatus status = ERROR;assert_param(IS_FUNCTIONAL_STATE(NewState));RTC->WPR = 0xCA;R
