在初始化RTC之前。系统时钟被设置为了低于RTC时钟的频率。则RTC计时会变慢。因为RTC时钟源是独立于系统时钟的。如果系统时钟太低。可能无法提供足够的精度来维护RTC计时器的准确性。可能需要在初始化之前将系统时钟设置为足够的频率。以确保RTC计时的准确性。在初始化RTC时没有正确配置RTC时钟源。RTC时钟源...
HAL_RTC_Initshould check if the RTC is already initializied (year != 0) and/or matches the desired configuration, and skip unnecessary stopping of the clock. According to the data sheet 45.3.8, the library should also check theINITSflag in the RTC_ISR register. This is big a problem, ...
For devices without external power for the real-time clock, OEMs need to reset their real-time clock if IOCTL_HAL_INIT_RTC was called. However, this scenario is different during an update process:When the system boots to the Update Loader image, it will always be a RAM clean boot from ...
For devices without external power for the real-time clock, OEMs need to reset their real-time clock if IOCTL_HAL_INIT_RTC was called. However, this scenario is different during an update process:When the system boots to the Update Loader image, it will always be a RAM clean boot from ...