Tip of the RTC iceberg | STM32F4 | RTC | CMSIS
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What is a Real-time Clock? Check out this article, Real-time clock from Wikipedia. It can get you started on what it is. In this tutorial, we will be talking about the integrated RTC peripheral on the STM32F401 microcontroller. RTC Peripheral on the STM32F401RE The RTC is an independent Binary Coded Decimal counter. The RTC has two 32-bit registers that contain the > S econds, > M inutes, > H ours (12- or 24-hour format), > D ay (Day of Week), > D ate (Day of Month), > M onth, > Year, expressed in binary-coded decimal format (BCD). After the backup domain reset, all RTC registers are protected against possible parasitic write accesses. As long as the supply voltage remains in the operating range, the RTC never stops, regardless of the device status (Run mode, low-power mode, or under reset)....