使用keil软件 STM32奋斗板实时时钟例程：此例程演示了实时时钟的实验。-Keil software STM32 board struggle with real-time clock routine: This routine demonstrates the real-time clock of the experiment.

奋斗STM32嵌入式开发板rtc实时时钟demo(Struggle STM32 embedded development board RTC real-time clock demo)