﻿1、功能说明
    1、通过EXTI线来触发日历打印输出。


2、使用环境

    软件开发环境：KEIL MDK-ARM V5.34.0.0
                 IAR EWARM 8.50.1
    硬件开发环境： 
        N32A052系列：
            基于评估板N32A052KBQX_STB V1.0开发 



3、使用说明

    系统配置；
        1、RTC时钟源：LSI
        2、中断线：EXTI_LINE2
        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：
        编译后烧录到评估板，PC6连接到PA2口，上电后，串口每隔1S会打印一次对应日历时间


4、注意事项
    无



1. Function description
    1. Trigger the calendar printout through the EXTI line.


2. Use environment

	Software development environment: KEIL MDK-ARM V5.34.0.0
                                      IAR EWARM 8.50.1
    Hardware development environment:
         N32A052 series:
            Developed based on the evaluation board N32A052KBQX_STB V1.0



3. Instructions for use

    System Configuration;
        1. RTC clock source: LSI
        2. Interrupt line: EXTI_LINE2
        3. Serial port configuration:
                    - Serial port is USART1 (TX: PA9 RX: PA10):
                    - Data bits: 8
                    - Stop bit: 1
                    - Parity: none
                    - Baud rate: 115200


    Instructions:
        After compiling and burning to the evaluation board, PC6 is connected to the PA2 port. After power-on, the serial port will print the corresponding calendar time every 1S.


4. Matters needing attention
    none