1、功能说明
    1、LP RUN模式的进入和退出。


2、使用环境

    软件开发环境：KEIL MDK-ARM V5.25

    硬件环境：
        1、基于评估板N32G030C8L7-STB V1.0开发
	2、MCU：N32G030C8L7


3、使用说明

    系统配置；
        1、时钟源：HSE+PLL/LSE
        2、时钟频率：48M/4M


    使用方法：
        在KEIL下编译后烧录到评估板，串接电流表，上电后过一会，电流明显变小。又过一会电流又变大。
        循环往复。
            


4、注意事项
    当进入LP RUN模式时，系统时钟切换到了LSE/LSI，当退出时，需要切回用户默认系统时钟


1. Function description
    1. Entry and exit of LP RUN mode.


2. Use environment

    Software development environment:
        IDE tool: KEIL MDK-ARM V5.25
      
    Hardware environment:
        Development board: N32G030C8L7-STB V1.0
	MCU: N32G030C8L7


3. Instructions for use

    System Configuration;
        1. Clock source: HSE+PLL/LSE
        2. Clock frequency: 48M/4M

    Instructions:
        After compiling under KEIL, it is burned to the evaluation board, and the ammeter is connected in series. After a while, the current becomes significantly smaller. After a while the current increases again.
        Cycle back and forth, check the print information to see entering and exiting the LP RUN mode.
            
4. Matters needing attention
    When entering LP RUN mode, the system clock is switched to LSE/LSI, and when exiting, it needs to switch back to the user default system clock

