利用timer模拟RTC做日历计时

[{"title":"（ 151 个子文件 3.07MB ） 利用timer模拟RTC做日历计时","children":[{"title":"clear编译完的东西.bat <span style='color:#111;'> 33B </span>","children":null,"spread":false},{"title":"main.d <span style='color:#111;'> 1.64KB </span>","children":null,"spread":false},{"title":"stm32f10x_gpio.o <span style='color:#111;'> 376.72KB </span>","children":null,"spread":false},{"title":"stm32f10x_tim.crf <span style='color:#111;'> 360.43KB </span>","children":null,"spread":false},{"title":"stm32f10x_pwr.__i <span style='color:#111;'> 510B </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]