1、功能说明
    1、LP SLEEP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N32L40XRL-STB V1.0开发
        2、MCU：N32L406RBL7


3、使用说明
    
    系统配置；
        1、时钟源：HSE+PLL/MSI
        2、时钟频率：48M/4M
        3、串口配置：
                 - 串口为USART1（TX：PA9  RX：PA10）:
                 - 数据位：8
                 - 停止位：1
                 - 奇偶校验：无
                 - 波特率： 115200 



    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。按下唤醒按键PA0，电流变大。
        再过一会，电流又变小，同时LED闪烁。
            


4、注意事项
    LP RUN唤醒后会先进入LP RUN，再由LP RUN退出到RUN模式


1. Function description
	1. Enter and exit LP SLEEP mode.

2. Use environment
	Software development environment: KEIL MDK-ARM V5.25
	Hardware environment:
	1. Development based on evaluation board N32L40XRL-STB V1.0
	2. MCU: N32L406RBL7

3. Instructions for use   
    System configuration;
	1. Clock source: HSE+PLL/MSI
	2. Clock frequency: 48M/4M
	3. Serial port configuration
	- Serial port: USART1 (TX: PA9 RX: PA10) :
	- Data bit: 8
	- Stop bit: 1
	- Parity check: None
	- Baud rate: 115200
    Instructions:
	After compiling under KEIL, it was burned to the evaluation board and connected to the ammeter in series. After powering on for a while, the current decreased significantly. Press the wake button PA0 and the current increases.
	After a while, the current drops again and the LED flashes.
            
4. Attention
    After waking up from LP RUN, the system enters LP RUN and exits the RUN mode from LP RUN

