1、功能说明
    1、通过设定唤醒时间触发中断。
    2、通过唤醒标志位来配置IO输出

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N32L43XML-STB V1.0开发
        2、MCU：N32L436MBL7

3、使用说明
    
    系统配置:
        1、周期性唤醒时钟源：RTCCLK（1HZ）
        2、唤醒输出口：PC13
        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：
        1、编译后烧录到评估板，上电后，串口每隔5s会打印:Stop2 Wakeup From RTC
        2、设定#define  RTC_ALARM_TEST_TYPE  RTC_ALARM_TEST_TYPE_OUTPUT，编译后烧录到评估板，
           上电后，PC13每隔5S翻转一次(4s高电平，1s低电平)。
                


4、注意事项
    无


1. Function description

	1. Trigger interrupt by setting wake up time
	2. Configure IO output by wake up flag bit

2. Use environment

	Software development environment: KEIL MDK-ARM V5.25
	Hardware environment:
		1. based on the evaluation board N32L43XML-STB V1.0 development
		2. MCU：N32L436MBL7

3. Instructions for use

	System configuration:
		1. periodic wake up clock source: RTCCLK (1HZ)
		2. Wakeup IO output: PC13
		3. Serial port configuration:

							- Serial port: USART1 (TX: PA9 RX: PA10) :
							- Data bit: 8
							- Stop bit: 1
							- Parity check: None
							- Baud rate: 115200

	Instructions:
		1. After compilation, it is burned to the evaluation board. After power-on, the serial port will print "Stop2 Wakeup From RTC" every 5s
		2. When set "#define RTC_ALARM_TEST_TYPE RTC_ALARM_TEST_TYPE_OUTPUT", compile and burn to evaluation board,After power-on, the PC13 is turned over every 5S(4s high level, 1S low level).

4. Matters needing attention
	None