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【STM32】标准库-RTC-周期性唤醒

共124个文件
h:56个
c:54个
dbgconf:4个

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采用STM32F429IGT6单片机,KeilMDK5.32版本 使用SysTick系统滴答定时器进行延时 LED_R、LED_G、LED_B分别为PH10,PH11,PH12 Key1为PA0,Key2为PC13 KEIL5下载配置有FLASH与SRAM 使用RTC实时时钟,可以使用串口接收来修改RTC的值(在调试模式下) RTC使用LSE(32.678KHz) RTC使用BCD码,配置与输出的时候需要使用16进制 周期性唤醒,需要使用外部中断线22,外部中断线22和RTC的WUTF标志,这两个标志控制RTC_WKUP_IRQn中断,系统复位后是不会触发该中断的,因为EXTI_PR被复位了; 系统复位后,需要重新配置外部中断线与中断优先级,开关等等(因为复位被这些寄存器复位,RTC类寄存器不会被复位影响) 在串口接收中断服务函数中,串口接收到数据则进入待机模式,外部中断触发则从待机模式下退出,从待机模式中唤醒等同于复位。 注意点:需要置位PWR 电源控制/状态寄存器 (PWR_CSR)中的EWUP才能使用PA0使得从待机模式下唤醒;进入待机模式前,需要清除WUF标志位
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