diff --git a/src/STM32RTC.cpp b/src/STM32RTC.cpp index b95a6ea..1c0ac13 100644 --- a/src/STM32RTC.cpp +++ b/src/STM32RTC.cpp @@ -915,6 +915,9 @@ void STM32RTC::setY2kEpoch(uint32_t ts) void STM32RTC::configForLowPower(Source_Clock source) { #if defined(HAL_PWR_MODULE_ENABLED) +#ifdef __HAL_RCC_RTCAPB_CLKAM_ENABLE + __HAL_RCC_RTCAPB_CLKAM_ENABLE(); +#endif if (!_configured) { _clockSource = source; // Enable RTC